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Revision 1.59 by root, Mon Jan 9 00:34:36 2006 UTC vs.
Revision 1.137 by root, Sat Mar 4 20:17:52 2006 UTC

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 (enabled by default) 46=item selection (enabled by default)
43 47
44Intelligent selection. This extension tries to be more intelligent when 48(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 49when the user extends selections (double-click and further clicks). Right
46urls and complete shell-quoted arguments, which is very convenient, too, 50now, it tries to select words, urls and complete shell-quoted
47if your F<ls> supports C<--quoting-style=shell>. 51arguments, which is very convenient, too, if your F<ls> supports
52C<--quoting-style=shell>.
48 53
49It 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
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
78
79You can look at the source of the selection extension to see more
80interesting uses, such as parsing a line from beginning to end.
81
82This extension also offers following bindable keyboard commands:
50 83
51=over 4 84=over 4
52 85
53=item rot13 86=item rot13
54 87
61=item option-popup (enabled by default) 94=item option-popup (enabled by default)
62 95
63Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at 96Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64runtime. 97runtime.
65 98
99Other extensions can extend this popup menu by pushing a code reference
100onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
101popup is being displayed.
102
103It's sole argument is the popup menu, which can be modified. It should
104either return nothing or a string, the initial boolean value and a code
105reference. The string will be used as button text and the code reference
106will be called when the toggle changes, with the new boolean value as
107first argument.
108
109The following will add an entry C<myoption> that changes
110C<$self->{myoption}>:
111
112 push @{ $self->{term}{option_popup_hook} }, sub {
113 ("my option" => $myoption, sub { $self->{myoption} = $_[0] })
114 };
115
66=item selection-popup (enabled by default) 116=item selection-popup (enabled by default)
67 117
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection 118Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action. 119text into various other formats/action (such as uri unescaping, perl
120evaluation, web-browser starting etc.), depending on content.
70 121
71=item digital-clock 122Other extensions can extend this popup menu by pushing a code reference
123onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
124popup is being displayed.
72 125
73Displays a digital clock using the built-in overlay. 126It's sole argument is the popup menu, which can be modified. The selection
127is in C<$_>, which can be used to decide wether to add something or not.
128It should either return nothing or a string and a code reference. The
129string will be used as button text and the code reference will be called
130when the button gets activated and should transform C<$_>.
131
132The following will add an entry C<a to b> that transforms all C<a>s in
133the selection to C<b>s, but only if the selection currently contains any
134C<a>s:
135
136 push @{ $self->{term}{selection_popup_hook} }, sub {
137 /a/ ? ("a to be" => sub { s/a/b/g }
138 : ()
139 };
140
141=item searchable-scrollback<hotkey> (enabled by default)
142
143Adds regex search functionality to the scrollback buffer, triggered
144by a hotkey (default: C<M-s>). While in search mode, normal terminal
145input/output is suspended and a regex is displayed at the bottom of the
146screen.
147
148Inputting characters appends them to the regex and continues incremental
149search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
150search upwards/downwards in the scrollback buffer, C<End> jumps to the
151bottom. C<Escape> leaves search mode and returns to the point where search
152was started, while C<Enter> or C<Return> stay at the current position and
153additionally stores the first match in the current line into the primary
154selection.
155
156=item readline (enabled by default)
157
158A support package that tries to make editing with readline easier. At
159the moment, it reacts to clicking shift-left mouse button by trying to
160move the text cursor to this position. It does so by generating as many
161cursor-left or cursor-right keypresses as required (the this only works
162for programs that correctly support wide characters).
163
164To avoid too many false positives, this is only done when:
165
166=over 4
167
168=item - the tty is in ICANON state.
169
170=item - the text cursor is visible.
171
172=item - the primary screen is currently being displayed.
173
174=item - the mouse is on the same (multi-row-) line as the text cursor.
175
176=back
177
178The normal selection mechanism isn't disabled, so quick successive clicks
179might interfere with selection creation in harmless ways.
180
181=item selection-autotransform
182
183This selection allows you to do automatic transforms on a selection
184whenever a selection is made.
185
186It works by specifying perl snippets (most useful is a single C<s///>
187operator) that modify C<$_> as resources:
188
189 URxvt.selection-autotransform.0: transform
190 URxvt.selection-autotransform.1: transform
191 ...
192
193For example, the following will transform selections of the form
194C<filename:number>, often seen in compiler messages, into C<vi +$filename
195$word>:
196
197 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
198
199And this example matches the same,but replaces it with vi-commands you can
200paste directly into your (vi :) editor:
201
202 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
203
204Of course, this can be modified to suit your needs and your editor :)
205
206To expand the example above to typical perl error messages ("XXX at
207FILENAME line YYY."), you need a slightly more elaborate solution:
208
209 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
210 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
211
212The first line tells the selection code to treat the unchanging part of
213every error message as a selection pattern, and the second line transforms
214the message into vi commands to load the file.
215
216=item tabbed
217
218This transforms the terminal into a tabbar with additional terminals, that
219is, it implements what is commonly refered to as "tabbed terminal". The topmost line
220displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
221button per tab.
222
223Clicking a button will activate that tab. Pressing B<Shift-Left> and
224B<Shift-Right> will switch to the tab left or right of the current one,
225while B<Shift-Down> creates a new tab.
226
227The tabbar itself can be configured similarly to a normal terminal, but
228with a resource class of C<URxvt.tabbed>. In addition, it supports the
229following four resources (shown with defaults):
230
231 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
232 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
233 URxvt.tabbed.tab-fg: <colour-index, default 0>
234 URxvt.tabbed.tab-bg: <colour-index, default 1>
235
236See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
237indices.
74 238
75=item mark-urls 239=item mark-urls
76 240
77Uses per-line display filtering (C<on_line_update>) to underline urls. 241Uses per-line display filtering (C<on_line_update>) to underline urls and
242make them clickable. When middle-clicked, the program specified in the
243resource C<urlLauncher> (default C<x-www-browser>) will be started with
244the URL as first argument.
245
246=item xim-onthespot
247
248This (experimental) perl extension implements OnTheSpot editing. It does
249not work perfectly, and some input methods don't seem to work well with
250OnTheSpot editing in general, but it seems to work at leats for SCIM and
251kinput2.
252
253You enable it by specifying this extension and a preedit style of
254C<OnTheSpot>, i.e.:
255
256 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
257
258=item automove-background
259
260This is basically a one-line extension that dynamically changes the background pixmap offset
261to the window position, in effect creating the same effect as pseudo transparency with
262a custom pixmap. No scaling is supported in this mode. Exmaple:
263
264 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
78 265
79=item block-graphics-to-ascii 266=item block-graphics-to-ascii
80 267
81A not very useful example of filtering all text output to the terminal, 268A not very useful example of filtering all text output to the terminal,
82by replacing all line-drawing characters (U+2500 .. U+259F) by a 269by replacing all line-drawing characters (U+2500 .. U+259F) by a
83similar-looking ascii character. 270similar-looking ascii character.
84 271
272=item digital-clock
273
274Displays a digital clock using the built-in overlay.
275
276=item remote-clipboard
277
278Somewhat of a misnomer, this extension adds two menu entries to the
279selection popup that allows one ti run external commands to store the
280selection somewhere and fetch it again.
281
282We use it to implement a "distributed selection mechanism", which just
283means that one command uploads the file to a remote server, and another
284reads it.
285
286The commands can be set using the C<URxvt.remote-selection.store> and
287C<URxvt.remote-selection.fetch> resources. The first should read the
288selection to store from STDIN (always in UTF-8), the second should provide
289the selection data on STDOUT (also in UTF-8).
290
291The defaults (which are likely useless to you) use rsh and cat:
292
293 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
294 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
295
296=item selection-pastebin
297
298This is a little rarely useful extension that Uploads the selection as
299textfile to a remote site (or does other things). (The implementation is
300not currently secure for use in a multiuser environment as it writes to
301F</tmp> directly.).
302
303It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
304i.e.
305
306 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
307
308Pressing this combination runs a command with C<%> replaced by the name of
309the textfile. This command can be set via a resource:
310
311 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
312
313And the default is likely not useful to anybody but the few people around
314here :)
315
316The name of the textfile is the hex encoded md5 sum of the selection, so
317the same content should lead to the same filename.
318
319After a successful upload the selection will be replaced by the text given
320in the C<selection-pastebin-url> resource (again, the % is the placeholder
321for the filename):
322
323 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
324
85=item example-refresh-hooks 325=item example-refresh-hooks
86 326
87Displays a very simple digital clock in the upper right corner of the 327Displays a very simple digital clock in the upper right corner of the
88window. Illustrates overwriting the refresh callbacks to create your own 328window. Illustrates overwriting the refresh callbacks to create your own
89overlays or changes. 329overlays or changes.
90 330
91=back 331=back
332
333=head1 API DOCUMENTATION
92 334
93=head2 General API Considerations 335=head2 General API Considerations
94 336
95All objects (such as terminals, time watchers etc.) are typical 337All objects (such as terminals, time watchers etc.) are typical
96reference-to-hash objects. The hash can be used to store anything you 338reference-to-hash objects. The hash can be used to store anything you
109=over 4 351=over 4
110 352
111=item $text 353=item $text
112 354
113Rxvt-unicodes special way of encoding text, where one "unicode" character 355Rxvt-unicodes special way of encoding text, where one "unicode" character
114always represents one screen cell. See L<row_t> for a discussion of this format. 356always represents one screen cell. See L<ROW_t> for a discussion of this format.
115 357
116=item $string 358=item $string
117 359
118A perl text string, with an emphasis on I<text>. It can store all unicode 360A perl text string, with an emphasis on I<text>. It can store all unicode
119characters and is to be distinguished with text encoded in a specific 361characters and is to be distinguished with text encoded in a specific
124Either binary data or - more common - a text string encoded in a 366Either binary data or - more common - a text string encoded in a
125locale-specific way. 367locale-specific way.
126 368
127=back 369=back
128 370
371=head2 Extension Objects
372
373Very perl extension is a perl class. A separate perl object is created
374for each terminal and each extension and passed as the first parameter to
375hooks. So extensions can use their C<$self> object without having to think
376about other extensions, with the exception of methods and members that
377begin with an underscore character C<_>: these are reserved for internal
378use.
379
380Although it isn't a C<urxvt::term> object, you can call all methods of the
381C<urxvt::term> class on this object.
382
383It has the following methods and data members:
384
385=over 4
386
387=item $urxvt_term = $self->{term}
388
389Returns the C<urxvt::term> object associated with this instance of the
390extension. This member I<must not> be changed in any way.
391
392=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
393
394Dynamically enable the given hooks (named without the C<on_> prefix) for
395this extension, replacing any previous hook. This is useful when you want
396to overwrite time-critical hooks only temporarily.
397
398=item $self->disable ($hook_name[, $hook_name..])
399
400Dynamically disable the given hooks.
401
402=back
403
129=head2 Hooks 404=head2 Hooks
130 405
131The following subroutines can be declared in extension files, and will be 406The following subroutines can be declared in extension files, and will be
132called whenever the relevant event happens. 407called whenever the relevant event happens.
133 408
134The first argument passed to them is an object private to each terminal 409The first argument passed to them is an extension oject as described in
135and extension package. You can call all C<urxvt::term> methods on it, but 410the in the C<Extension Objects> section.
136its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
137object that is shared between all packages is stored in the C<term>
138member. It is, however, blessed intot he package of the extension script,
139so for all practical purposes you can treat an extension script as a class.
140 411
141All of them must return a boolean value. If it is true, then the event 412B<All> of these hooks must return a boolean value. If any of the called
142counts as being I<consumed>, and the invocation of other hooks is skipped, 413hooks returns true, then the event counts as being I<consumed>, and the
143and the relevant action might not be carried out by the C++ code. 414relevant action might not be carried out by the C++ code.
144 415
145When in doubt, return a false value (preferably C<()>). 416I<< When in doubt, return a false value (preferably C<()>). >>
146 417
147=over 4 418=over 4
148 419
149=item on_init $term 420=item on_init $term
150 421
151Called after a new terminal object has been initialized, but before 422Called after a new terminal object has been initialized, but before
152windows are created or the command gets run. Most methods are unsafe to 423windows are created or the command gets run. Most methods are unsafe to
153call or deliver senseless data, as terminal size and other characteristics 424call or deliver senseless data, as terminal size and other characteristics
154have not yet been determined. You can safely query and change resources, 425have not yet been determined. You can safely query and change resources
155though. 426and options, though. For many purposes the C<on_start> hook is a better
427place.
428
429=item on_start $term
430
431Called at the very end of initialisation of a new terminal, just before
432trying to map (display) the toplevel and returning to the mainloop.
433
434=item on_destroy $term
435
436Called whenever something tries to destroy terminal, when the terminal is
437still fully functional (not for long, though).
156 438
157=item on_reset $term 439=item on_reset $term
158 440
159Called after the screen is "reset" for any reason, such as resizing or 441Called after the screen is "reset" for any reason, such as resizing or
160control sequences. Here is where you can react on changes to size-related 442control sequences. Here is where you can react on changes to size-related
161variables. 443variables.
162 444
163=item on_start $term 445=item on_child_start $term, $pid
164 446
165Called at the very end of initialisation of a new terminal, just before 447Called just after the child process has been C<fork>ed.
166returning to the mainloop. 448
449=item on_child_exit $term, $status
450
451Called just after the child process has exited. C<$status> is the status
452from C<waitpid>.
167 453
168=item on_sel_make $term, $eventtime 454=item on_sel_make $term, $eventtime
169 455
170Called whenever a selection has been made by the user, but before the 456Called whenever a selection has been made by the user, but before the
171selection text is copied, so changes to the beginning, end or type of the 457selection text is copied, so changes to the beginning, end or type of the
185=item on_sel_extend $term 471=item on_sel_extend $term
186 472
187Called whenever the user tries to extend the selection (e.g. with a double 473Called whenever the user tries to extend the selection (e.g. with a double
188click) and is either supposed to return false (normal operation), or 474click) and is either supposed to return false (normal operation), or
189should extend the selection itelf and return true to suppress the built-in 475should extend the selection itelf and return true to suppress the built-in
190processing. 476processing. This can happen multiple times, as long as the callback
477returns true, it will be called on every further click by the user and is
478supposed to enlarge the selection more and more, if possible.
191 479
192See the F<selection> example extension. 480See the F<selection> example extension.
193 481
194=item on_view_change $term, $offset 482=item on_view_change $term, $offset
195 483
205 493
206It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 494It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 495$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208number of lines that will be in the scrollback buffer. 496number of lines that will be in the scrollback buffer.
209 497
210=item on_tty_activity $term *NYI* 498=item on_osc_seq $term, $op, $args
211 499
212Called whenever the program(s) running in the urxvt window send output. 500Called on every OSC sequence and can be used to suppress it or modify its
501behaviour. The default should be to return an empty list. A true value
502suppresses execution of the request completely. Make sure you don't get
503confused by recursive invocations when you output an osc sequence within
504this callback.
213 505
506C<on_osc_seq_perl> should be used for new behaviour.
507
214=item on_osc_seq $term, $string 508=item on_osc_seq_perl $term, $string
215 509
216Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 510Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217operating system command) is processed. Cursor position and other state 511operating system command) is processed. Cursor position and other state
218information is up-to-date when this happens. For interoperability, the 512information is up-to-date when this happens. For interoperability, the
219string should start with the extension name and a colon, to distinguish 513string should start with the extension name and a colon, to distinguish
230can filter/change and output the text yourself by returning a true value 524can filter/change and output the text yourself by returning a true value
231and calling C<< $term->scr_add_lines >> yourself. Please note that this 525and calling C<< $term->scr_add_lines >> yourself. Please note that this
232might be very slow, however, as your hook is called for B<all> text being 526might be very slow, however, as your hook is called for B<all> text being
233output. 527output.
234 528
529=item on_tt_write $term, $octets
530
531Called whenever some data is written to the tty/pty and can be used to
532suppress or filter tty input.
533
235=item on_line_update $term, $row 534=item on_line_update $term, $row
236 535
237Called whenever a line was updated or changed. Can be used to filter 536Called whenever a line was updated or changed. Can be used to filter
238screen output (e.g. underline urls or other useless stuff). Only lines 537screen output (e.g. underline urls or other useless stuff). Only lines
239that are being shown will be filtered, and, due to performance reasons, 538that are being shown will be filtered, and, due to performance reasons,
255 554
256=item on_refresh_end $term 555=item on_refresh_end $term
257 556
258Called just after the screen gets redrawn. See C<on_refresh_begin>. 557Called just after the screen gets redrawn. See C<on_refresh_begin>.
259 558
260=item on_keyboard_command $term, $string 559=item on_user_command $term, $string
261 560
262Called whenever the user presses a key combination that has a 561Called whenever the a user-configured event is being activated (e.g. via
263C<perl:string> action bound to it (see description of the B<keysym> 562a C<perl:string> action bound to a key, see description of the B<keysym>
264resource in the @@RXVT_NAME@@(1) manpage). 563resource in the @@RXVT_NAME@@(1) manpage).
564
565The event is simply the action string. This interface is assumed to change
566slightly in the future.
567
568=item on_resize_all_windows $tern, $new_width, $new_height
569
570Called just after the new window size has been calculcated, but before
571windows are actually being resized or hints are being set. If this hook
572returns TRUE, setting of the window hints is being skipped.
573
574=item on_x_event $term, $event
575
576Called on every X event received on the vt window (and possibly other
577windows). Should only be used as a last resort. Most event structure
578members are not passed.
265 579
266=item on_focus_in $term 580=item on_focus_in $term
267 581
268Called whenever the window gets the keyboard focus, before rxvt-unicode 582Called whenever the window gets the keyboard focus, before rxvt-unicode
269does focus in processing. 583does focus in processing.
271=item on_focus_out $term 585=item on_focus_out $term
272 586
273Called wheneever the window loses keyboard focus, before rxvt-unicode does 587Called wheneever the window loses keyboard focus, before rxvt-unicode does
274focus out processing. 588focus out processing.
275 589
590=item on_configure_notify $term, $event
591
592=item on_property_notify $term, $event
593
276=item on_key_press $term, $event, $octets 594=item on_key_press $term, $event, $keysym, $octets
277 595
278=item on_key_release $term, $event 596=item on_key_release $term, $event, $keysym
279 597
280=item on_button_press $term, $event 598=item on_button_press $term, $event
281 599
282=item on_button_release $term, $event 600=item on_button_release $term, $event
283 601
289 607
290Called whenever the corresponding X event is received for the terminal If 608Called whenever the corresponding X event is received for the terminal If
291the hook returns true, then the even will be ignored by rxvt-unicode. 609the hook returns true, then the even will be ignored by rxvt-unicode.
292 610
293The event is a hash with most values as named by Xlib (see the XEvent 611The event is a hash with most values as named by Xlib (see the XEvent
294manpage), with the additional members C<row> and C<col>, which are the row 612manpage), with the additional members C<row> and C<col>, which are the
295and column under the mouse cursor. 613(real, not screen-based) row and column under the mouse cursor.
296 614
297C<on_key_press> additionally receives the string rxvt-unicode would 615C<on_key_press> additionally receives the string rxvt-unicode would
298output, if any, in locale-specific encoding. 616output, if any, in locale-specific encoding.
299 617
300subwindow. 618subwindow.
301 619
620=item on_client_message $term, $event
621
622=item on_wm_protocols $term, $event
623
624=item on_wm_delete_window $term, $event
625
626Called when various types of ClientMessage events are received (all with
627format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
628
302=back 629=back
303 630
631=cut
632
633package urxvt;
634
635use utf8;
636use strict;
637use Carp ();
638use Scalar::Util ();
639use List::Util ();
640
641our $VERSION = 1;
642our $TERM;
643our @TERM_INIT;
644our @TERM_EXT;
645our @HOOKNAME;
646our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
647our %OPTION;
648
649our $LIBDIR;
650our $RESNAME;
651our $RESCLASS;
652our $RXVTNAME;
653
654our $NOCHAR = chr 0xffff;
655
304=head2 Variables in the C<urxvt> Package 656=head2 Variables in the C<urxvt> Package
305 657
306=over 4 658=over 4
659
660=item $urxvt::LIBDIR
661
662The rxvt-unicode library directory, where, among other things, the perl
663modules and scripts are stored.
664
665=item $urxvt::RESCLASS, $urxvt::RESCLASS
666
667The resource class and name rxvt-unicode uses to look up X resources.
668
669=item $urxvt::RXVTNAME
670
671The basename of the installed binaries, usually C<urxvt>.
307 672
308=item $urxvt::TERM 673=item $urxvt::TERM
309 674
310The current terminal. This variable stores the current C<urxvt::term> 675The current terminal. This variable stores the current C<urxvt::term>
311object, whenever a callback/hook is executing. 676object, whenever a callback/hook is executing.
312 677
678=item @urxvt::TERM_INIT
679
680All coderefs in this array will be called as methods of the next newly
681created C<urxvt::term> object (during the C<on_init> phase). The array
682gets cleared before the codereferences that were in it are being executed,
683so coderefs can push themselves onto it again if they so desire.
684
685This complements to the perl-eval commandline option, but gets executed
686first.
687
688=item @urxvt::TERM_EXT
689
690Works similar to C<@TERM_INIT>, but contains perl package/class names, which
691get registered as normal extensions after calling the hooks in C<@TERM_INIT>
692but before other extensions. Gets cleared just like C<@TERM_INIT>.
693
313=back 694=back
314 695
315=head2 Functions in the C<urxvt> Package 696=head2 Functions in the C<urxvt> Package
316 697
317=over 4 698=over 4
318
319=item $term = new urxvt [arg...]
320
321Creates a new terminal, very similar as if you had started it with
322C<system $binfile, arg...>. Croaks (and probably outputs an error message)
323if the new instance couldn't be created. Returns C<undef> if the new
324instance didn't initialise perl, and the terminal object otherwise. The
325C<init> and C<start> hooks will be called during the call.
326 699
327=item urxvt::fatal $errormessage 700=item urxvt::fatal $errormessage
328 701
329Fatally aborts execution with the given error message. Avoid at all 702Fatally aborts execution with the given error message. Avoid at all
330costs! The only time this is acceptable is when the terminal process 703costs! The only time this is acceptable is when the terminal process
337that calls this function. 710that calls this function.
338 711
339Using this function has the advantage that its output ends up in the 712Using this function has the advantage that its output ends up in the
340correct place, e.g. on stderr of the connecting urxvtc client. 713correct place, e.g. on stderr of the connecting urxvtc client.
341 714
715Messages have a size limit of 1023 bytes currently.
716
717=item @terms = urxvt::termlist
718
719Returns all urxvt::term objects that exist in this process, regardless of
720wether they are started, being destroyed etc., so be careful. Only term
721objects that have perl extensions attached will be returned (because there
722is no urxvt::term objet associated with others).
723
342=item $time = urxvt::NOW 724=item $time = urxvt::NOW
343 725
344Returns the "current time" (as per the event loop). 726Returns the "current time" (as per the event loop).
345 727
346=item urxvt::CurrentTime 728=item urxvt::CurrentTime
347 729
348=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 730=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
349Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 731Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
350Button4Mask, Button5Mask, AnyModifier 732Button4Mask, Button5Mask, AnyModifier
733
734=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
735ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
736PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
737Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
738KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
739ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
740FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
741
742=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
743EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
744GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
745UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
746ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
747CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
748SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
351 749
352Various constants for use in X calls and event processing. 750Various constants for use in X calls and event processing.
353 751
354=back 752=back
355 753
384 782
385=item $background = urxvt::GET_BASEBG $rend 783=item $background = urxvt::GET_BASEBG $rend
386 784
387Return the foreground/background colour index, respectively. 785Return the foreground/background colour index, respectively.
388 786
389=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 787=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
390 788
391=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 789=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
790
791=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
392 792
393Replace the foreground/background colour in the rendition mask with the 793Replace the foreground/background colour in the rendition mask with the
394specified one. 794specified one.
395 795
396=item $value = urxvt::GET_CUSTOM ($rend) 796=item $value = urxvt::GET_CUSTOM $rend
397 797
398Return the "custom" value: Every rendition has 5 bits for use by 798Return the "custom" value: Every rendition has 5 bits for use by
399extensions. They can be set and changed as you like and are initially 799extensions. They can be set and changed as you like and are initially
400zero. 800zero.
401 801
402=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 802=item $rend = urxvt::SET_CUSTOM $rend, $new_value
403 803
404Change the custom value. 804Change the custom value.
405 805
406=back 806=back
407 807
408=cut 808=cut
409 809
410package urxvt;
411
412use utf8;
413use strict;
414use Scalar::Util ();
415use List::Util ();
416
417our $VERSION = 1;
418our $TERM;
419our @HOOKNAME;
420our %OPTION;
421our $LIBDIR;
422
423BEGIN { 810BEGIN {
424 urxvt->bootstrap;
425
426 # overwrite perl's warn 811 # overwrite perl's warn
427 *CORE::GLOBAL::warn = sub { 812 *CORE::GLOBAL::warn = sub {
428 my $msg = join "", @_; 813 my $msg = join "", @_;
429 $msg .= "\n" 814 $msg .= "\n"
430 unless $msg =~ /\n$/; 815 unless $msg =~ /\n$/;
431 urxvt::warn ($msg); 816 urxvt::warn ($msg);
432 }; 817 };
433
434 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
435 delete $ENV{CDPATH};
436} 818}
437 819
438my @hook_count; 820no warnings 'utf8';
821
439my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 822my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
440 823
441sub verbose { 824sub verbose {
442 my ($level, $msg) = @_; 825 my ($level, $msg) = @_;
443 warn "$msg\n" if $level <= $verbosity; 826 warn "$msg\n" if $level <= $verbosity;
444} 827}
445 828
446# find on_xxx subs in the package and register them
447# as hooks
448sub register_package($) {
449 my ($pkg) = @_;
450
451 for my $htype (0.. $#HOOKNAME) {
452 my $name = $HOOKNAME[$htype];
453
454 my $ref = $pkg->can ("on_" . lc $name)
455 or next;
456
457 $TERM->{_hook}[$htype]{$pkg} = $ref;
458 $hook_count[$htype]++
459 or set_should_invoke $htype, 1;
460 }
461}
462
463my $extension_pkg = "extension0000";
464my %extension_pkg; 829my %extension_pkg;
465 830
466# load a single script into its own package, once only 831# load a single script into its own package, once only
467sub extension_package($) { 832sub extension_package($) {
468 my ($path) = @_; 833 my ($path) = @_;
469 834
470 $extension_pkg{$path} ||= do { 835 $extension_pkg{$path} ||= do {
471 my $pkg = "urxvt::" . ($extension_pkg++); 836 $path =~ /([^\/\\]+)$/;
837 my $pkg = $1;
838 $pkg =~ s/[^[:word:]]/_/g;
839 $pkg = "urxvt::ext::$pkg";
472 840
473 verbose 3, "loading extension '$path' into package '$pkg'"; 841 verbose 3, "loading extension '$path' into package '$pkg'";
474 842
475 open my $fh, "<:raw", $path 843 open my $fh, "<:raw", $path
476 or die "$path: $!"; 844 or die "$path: $!";
477 845
478 my $source = untaint "package $pkg; use strict; use utf8;\n" 846 my $source =
479 . "use base urxvt::term::proxy::;\n" 847 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
480 . "#line 1 \"$path\"\n{\n" 848 . "#line 1 \"$path\"\n{\n"
481 . (do { local $/; <$fh> }) 849 . (do { local $/; <$fh> })
482 . "\n};\n1"; 850 . "\n};\n1";
483 851
852 eval $source
484 eval $source or die "$path: $@"; 853 or die "$path: $@";
485 854
486 $pkg 855 $pkg
487 } 856 }
488} 857}
489 858
495 my $htype = shift; 864 my $htype = shift;
496 865
497 if ($htype == 0) { # INIT 866 if ($htype == 0) { # INIT
498 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 867 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
499 868
500 my %want_ext; 869 my %ext_arg;
501 870
871 {
872 my @init = @TERM_INIT;
873 @TERM_INIT = ();
874 $_->($TERM) for @init;
875 my @pkg = @TERM_EXT;
876 @TERM_EXT = ();
877 $TERM->register_package ($_) for @pkg;
878 }
879
502 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 880 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
503 if ($_ eq "default") { 881 if ($_ eq "default") {
504 $want_ext{$_}++ for qw(selection option-popup selection-popup); 882 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
505 } elsif (/^-(.*)$/) { 883 } elsif (/^-(.*)$/) {
506 delete $want_ext{$1}; 884 delete $ext_arg{$1};
885 } elsif (/^([^<]+)<(.*)>$/) {
886 push @{ $ext_arg{$1} }, $2;
507 } else { 887 } else {
508 $want_ext{$_}++; 888 $ext_arg{$_} ||= [];
509 } 889 }
510 } 890 }
511 891
512 for my $ext (keys %want_ext) { 892 for my $ext (sort keys %ext_arg) {
513 my @files = grep -f $_, map "$_/$ext", @dirs; 893 my @files = grep -f $_, map "$_/$ext", @dirs;
514 894
515 if (@files) { 895 if (@files) {
516 register_package extension_package $files[0]; 896 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
517 } else { 897 } else {
518 warn "perl extension '$ext' not found in perl library search path\n"; 898 warn "perl extension '$ext' not found in perl library search path\n";
519 } 899 }
520 } 900 }
521 901
530 if $verbosity >= 10; 910 if $verbosity >= 10;
531 911
532 keys %$cb; 912 keys %$cb;
533 913
534 while (my ($pkg, $cb) = each %$cb) { 914 while (my ($pkg, $cb) = each %$cb) {
535 eval { 915 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
536 $retval = $cb->( 916 $retval ||= $retval_;
537 $TERM->{_pkg}{$pkg} ||= do { 917
538 my $proxy = bless { }, $pkg;
539 Scalar::Util::weaken ($proxy->{term} = $TERM);
540 $proxy
541 },
542 @_,
543 ) and last;
544 };
545 if ($@) { 918 if ($@) {
546 $TERM->ungrab; # better to lose the grab than the session 919 $TERM->ungrab; # better to lose the grab than the session
547 warn $@; 920 warn $@;
548 } 921 }
549 } 922 }
923
924 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
925 if $verbosity >= 11;
550 } 926 }
551 927
552 if ($htype == 1) { # DESTROY 928 if ($htype == 1) { # DESTROY
553 # remove hooks if unused
554 if (my $hook = $TERM->{_hook}) {
555 for my $htype (0..$#$hook) {
556 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
557 or set_should_invoke $htype, 0;
558 }
559 }
560
561 # clear package objects 929 # clear package objects
562 %$_ = () for values %{ $TERM->{_pkg} }; 930 %$_ = () for values %{ $TERM->{_pkg} };
563 931
564 # clear package 932 # clear package
565 %$TERM = (); 933 %$TERM = ();
566 } 934 }
567 935
568 $retval 936 $retval
569} 937}
570 938
571# urxvt::term::proxy 939sub SET_COLOR($$$) {
940 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
941}
572 942
573sub urxvt::term::proxy::AUTOLOAD { 943# urxvt::term::extension
574 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 944
945package urxvt::term::extension;
946
947sub enable {
948 my ($self, %hook) = @_;
949 my $pkg = $self->{_pkg};
950
951 while (my ($name, $cb) = each %hook) {
952 my $htype = $HOOKTYPE{uc $name};
953 defined $htype
954 or Carp::croak "unsupported hook type '$name'";
955
956 $self->set_should_invoke ($htype, +1)
957 unless exists $self->{term}{_hook}[$htype]{$pkg};
958
959 $self->{term}{_hook}[$htype]{$pkg} = $cb;
960 }
961}
962
963sub disable {
964 my ($self, @hook) = @_;
965 my $pkg = $self->{_pkg};
966
967 for my $name (@hook) {
968 my $htype = $HOOKTYPE{uc $name};
969 defined $htype
970 or Carp::croak "unsupported hook type '$name'";
971
972 $self->set_should_invoke ($htype, -1)
973 if delete $self->{term}{_hook}[$htype]{$pkg};
974 }
975}
976
977our $AUTOLOAD;
978
979sub AUTOLOAD {
980 $AUTOLOAD =~ /:([^:]+)$/
575 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 981 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
576 982
577 eval qq{ 983 eval qq{
578 sub $urxvt::term::proxy::AUTOLOAD { 984 sub $AUTOLOAD {
579 my \$proxy = shift; 985 my \$proxy = shift;
580 \$proxy->{term}->$1 (\@_) 986 \$proxy->{term}->$1 (\@_)
581 } 987 }
582 1 988 1
583 } or die "FATAL: unable to compile method forwarder: $@"; 989 } or die "FATAL: unable to compile method forwarder: $@";
584 990
585 goto &$urxvt::term::proxy::AUTOLOAD; 991 goto &$AUTOLOAD;
586} 992}
587 993
588sub urxvt::term::proxy::DESTROY { 994sub DESTROY {
589 # nop 995 # nop
590} 996}
591 997
592# urxvt::destroy_hook 998# urxvt::destroy_hook
593 999
603 1009
604=head2 The C<urxvt::anyevent> Class 1010=head2 The C<urxvt::anyevent> Class
605 1011
606The sole purpose of this class is to deliver an interface to the 1012The sole purpose of this class is to deliver an interface to the
607C<AnyEvent> module - any module using it will work inside urxvt without 1013C<AnyEvent> module - any module using it will work inside urxvt without
608further work. The only exception is that you cannot wait on condition 1014further programming. The only exception is that you cannot wait on
609variables, but non-blocking condvar use is ok. What this means is that you 1015condition variables, but non-blocking condvar use is ok. What this means
610cannot use blocking APIs, but the non-blocking variant should work. 1016is that you cannot use blocking APIs, but the non-blocking variant should
1017work.
611 1018
612=cut 1019=cut
613 1020
614our $VERSION = 1; 1021our $VERSION = 1;
615 1022
660 ${$_[0]}++; 1067 ${$_[0]}++;
661} 1068}
662 1069
663sub urxvt::anyevent::condvar::wait { 1070sub urxvt::anyevent::condvar::wait {
664 unless (${$_[0]}) { 1071 unless (${$_[0]}) {
665 require Carp;
666 Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"); 1072 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
667 } 1073 }
668} 1074}
669 1075
670package urxvt::term; 1076package urxvt::term;
671 1077
672=head2 The C<urxvt::term> Class 1078=head2 The C<urxvt::term> Class
673 1079
674=over 4 1080=over 4
675 1081
1082=cut
1083
1084# find on_xxx subs in the package and register them
1085# as hooks
1086sub register_package {
1087 my ($self, $pkg, $argv) = @_;
1088
1089 no strict 'refs';
1090
1091 urxvt::verbose 6, "register package $pkg to $self";
1092
1093 @{"$pkg\::ISA"} = urxvt::term::extension::;
1094
1095 my $proxy = bless {
1096 _pkg => $pkg,
1097 argv => $argv,
1098 }, $pkg;
1099 Scalar::Util::weaken ($proxy->{term} = $self);
1100
1101 $self->{_pkg}{$pkg} = $proxy;
1102
1103 for my $name (@HOOKNAME) {
1104 if (my $ref = $pkg->can ("on_" . lc $name)) {
1105 $proxy->enable ($name => $ref);
1106 }
1107 }
1108}
1109
1110=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1111
1112Creates a new terminal, very similar as if you had started it with system
1113C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1114hash which defines the environment of the new terminal.
1115
1116Croaks (and probably outputs an error message) if the new instance
1117couldn't be created. Returns C<undef> if the new instance didn't
1118initialise perl, and the terminal object otherwise. The C<init> and
1119C<start> hooks will be called before this call returns, and are free to
1120refer to global data (which is race free).
1121
1122=cut
1123
1124sub new {
1125 my ($class, $env, @args) = @_;
1126
1127 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1128 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1129
1130 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
1131}
1132
676=item $term->destroy 1133=item $term->destroy
677 1134
678Destroy the terminal object (close the window, free resources etc.). 1135Destroy the terminal object (close the window, free resources
1136etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1137watchers (timers, io watchers) are still active.
1138
1139=item $term->exec_async ($cmd[, @args])
1140
1141Works like the combination of the C<fork>/C<exec> builtins, which executes
1142("starts") programs in the background. This function takes care of setting
1143the user environment before exec'ing the command (e.g. C<PATH>) and should
1144be preferred over explicit calls to C<exec> or C<system>.
1145
1146Returns the pid of the subprocess or C<undef> on error.
1147
1148=cut
1149
1150sub exec_async {
1151 my $self = shift;
1152
1153 my $pid = fork;
1154
1155 return $pid
1156 if !defined $pid or $pid;
1157
1158 %ENV = %{ $self->env };
1159
1160 exec @_;
1161 urxvt::_exit 255;
1162}
679 1163
680=item $isset = $term->option ($optval[, $set]) 1164=item $isset = $term->option ($optval[, $set])
681 1165
682Returns true if the option specified by C<$optval> is enabled, and 1166Returns true if the option specified by C<$optval> is enabled, and
683optionally change it. All option values are stored by name in the hash 1167optionally change it. All option values are stored by name in the hash
686Here is a a likely non-exhaustive list of option names, please see the 1170Here is a a likely non-exhaustive list of option names, please see the
687source file F</src/optinc.h> to see the actual list: 1171source file F</src/optinc.h> to see the actual list:
688 1172
689 borderLess console cursorBlink cursorUnderline hold iconic insecure 1173 borderLess console cursorBlink cursorUnderline hold iconic insecure
690 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1174 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
691 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1175 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
692 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1176 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
693 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1177 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
694 tripleclickwords utmpInhibit visualBell 1178 transparent tripleclickwords utmpInhibit visualBell
695 1179
696=item $value = $term->resource ($name[, $newval]) 1180=item $value = $term->resource ($name[, $newval])
697 1181
698Returns the current resource value associated with a given name and 1182Returns the current resource value associated with a given name and
699optionally sets a new value. Setting values is most useful in the C<init> 1183optionally sets a new value. Setting values is most useful in the C<init>
716 1200
717 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1201 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
718 borderLess color cursorBlink cursorUnderline cutchars delete_key 1202 borderLess color cursorBlink cursorUnderline cutchars delete_key
719 display_name embed ext_bwidth fade font geometry hold iconName 1203 display_name embed ext_bwidth fade font geometry hold iconName
720 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1204 imFont imLocale inputMethod insecure int_bwidth intensityStyles
721 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1205 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
722 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1206 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
723 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1207 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
724 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1208 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
725 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1209 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
726 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1210 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
727 shade term_name title transparent transparent_all tripleclickwords 1211 secondaryScreen secondaryScroll selectstyle shade term_name title
728 utmpInhibit visualBell 1212 transient_for transparent transparent_all tripleclickwords utmpInhibit
1213 visualBell
729 1214
730=cut 1215=cut
731 1216
732sub resource($$;$) { 1217sub resource($$;$) {
733 my ($self, $name) = (shift, shift); 1218 my ($self, $name) = (shift, shift);
734 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1219 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
735 &urxvt::term::_resource 1220 &urxvt::term::_resource
736} 1221}
737 1222
1223=item $value = $term->x_resource ($pattern)
1224
1225Returns the X-Resource for the given pattern, excluding the program or
1226class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1227same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1228resource with that pattern exists.
1229
1230This method should only be called during the C<on_start> hook, as there is
1231only one resource database per display, and later invocations might return
1232the wrong resources.
1233
1234=item $success = $term->parse_keysym ($keysym_spec, $command_string)
1235
1236Adds a keymap translation exactly as specified via a resource. See the
1237C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1238
738=item $rend = $term->rstyle ([$new_rstyle]) 1239=item $rend = $term->rstyle ([$new_rstyle])
739 1240
740Return and optionally change the current rendition. Text that is output by 1241Return and optionally change the current rendition. Text that is output by
741the terminal application will use this style. 1242the terminal application will use this style.
742 1243
752=item ($row, $col) = $term->selection_end ([$row, $col]) 1253=item ($row, $col) = $term->selection_end ([$row, $col])
753 1254
754Return the current values of the selection mark, begin or end positions, 1255Return the current values of the selection mark, begin or end positions,
755and optionally set them to new values. 1256and optionally set them to new values.
756 1257
1258=item $term->selection_make ($eventtime[, $rectangular])
1259
1260Tries to make a selection as set by C<selection_beg> and
1261C<selection_end>. If C<$rectangular> is true (default: false), a
1262rectangular selection will be made. This is the prefered function to make
1263a selection.
1264
757=item $success = $term->selection_grab ($eventtime) 1265=item $success = $term->selection_grab ($eventtime)
758 1266
759Try to request the primary selection from the server (for example, as set 1267Try to request the primary selection text from the server (for example, as
760by the next method). 1268set by the next method). No visual feedback will be given. This function
1269is mostly useful from within C<on_sel_grab> hooks.
761 1270
762=item $oldtext = $term->selection ([$newtext]) 1271=item $oldtext = $term->selection ([$newtext])
763 1272
764Return the current selection text and optionally replace it by C<$newtext>. 1273Return the current selection text and optionally replace it by C<$newtext>.
765 1274
766#=item $term->overlay ($x, $y, $text) 1275=item $term->overlay_simple ($x, $y, $text)
767# 1276
768#Create a simple multi-line overlay box. See the next method for details. 1277Create a simple multi-line overlay box. See the next method for details.
769# 1278
770#=cut 1279=cut
771# 1280
772#sub urxvt::term::scr_overlay { 1281sub overlay_simple {
773# my ($self, $x, $y, $text) = @_; 1282 my ($self, $x, $y, $text) = @_;
774# 1283
775# my @lines = split /\n/, $text; 1284 my @lines = split /\n/, $text;
776# 1285
777# my $w = 0; 1286 my $w = List::Util::max map $self->strwidth ($_), @lines;
778# for (map $self->strwidth ($_), @lines) { 1287
779# $w = $_ if $w < $_;
780# }
781#
782# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1288 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
783# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1289 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
784#} 1290
1291 $overlay
1292}
785 1293
786=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1294=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
787 1295
788Create a new (empty) overlay at the given position with the given 1296Create a new (empty) overlay at the given position with the given
789width/height. C<$rstyle> defines the initial rendition style 1297width/height. C<$rstyle> defines the initial rendition style
856 1364
857=item $string = $term->locale_decode ($octets) 1365=item $string = $term->locale_decode ($octets)
858 1366
859Convert the given locale-encoded octets into a perl string. 1367Convert the given locale-encoded octets into a perl string.
860 1368
1369=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1370
1371XORs the rendition values in the given span with the provided value
1372(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1373refresh hooks to provide effects similar to the selection.
1374
1375=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1376
1377Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1378whitespace will additionally be xored with the C<$rstyle2>, which defaults
1379to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1380it instead. Both styles I<MUST NOT> contain font styles.
1381
1382=item $term->scr_bell
1383
1384Ring the bell!
1385
861=item $term->scr_add_lines ($string) 1386=item $term->scr_add_lines ($string)
862 1387
863Write the given text string to the screen, as if output by the application 1388Write the given text string to the screen, as if output by the application
864running inside the terminal. It may not contain command sequences (escape 1389running inside the terminal. It may not contain command sequences (escape
865codes), but is free to use line feeds, carriage returns and tabs. The 1390codes), but is free to use line feeds, carriage returns and tabs. The
867 1392
868Normally its not a good idea to use this function, as programs might be 1393Normally its not a good idea to use this function, as programs might be
869confused by changes in cursor position or scrolling. Its useful inside a 1394confused by changes in cursor position or scrolling. Its useful inside a
870C<on_add_lines> hook, though. 1395C<on_add_lines> hook, though.
871 1396
1397=item $term->scr_change_screen ($screen)
1398
1399Switch to given screen - 0 primary, 1 secondary.
1400
872=item $term->cmd_parse ($octets) 1401=item $term->cmd_parse ($octets)
873 1402
874Similar to C<scr_add_lines>, but the argument must be in the 1403Similar to C<scr_add_lines>, but the argument must be in the
875locale-specific encoding of the terminal and can contain command sequences 1404locale-specific encoding of the terminal and can contain command sequences
876(escape codes) that will be interpreted. 1405(escape codes) that will be interpreted.
879 1408
880Write the octets given in C<$data> to the tty (i.e. as program input). To 1409Write the octets given in C<$data> to the tty (i.e. as program input). To
881pass characters instead of octets, you should convert your strings first 1410pass characters instead of octets, you should convert your strings first
882to the locale-specific encoding using C<< $term->locale_encode >>. 1411to the locale-specific encoding using C<< $term->locale_encode >>.
883 1412
1413=item $old_events = $term->pty_ev_events ([$new_events])
1414
1415Replaces the event mask of the pty watcher by the given event mask. Can
1416be used to suppress input and output handling to the pty/tty. See the
1417description of C<< urxvt::timer->events >>. Make sure to always restore
1418the previous value.
1419
1420=item $fd = $term->pty_fd
1421
1422Returns the master file descriptor for the pty in use, or C<-1> if no pty
1423is used.
1424
884=item $windowid = $term->parent 1425=item $windowid = $term->parent
885 1426
886Return the window id of the toplevel window. 1427Return the window id of the toplevel window.
887 1428
888=item $windowid = $term->vt 1429=item $windowid = $term->vt
889 1430
890Return the window id of the terminal window. 1431Return the window id of the terminal window.
891 1432
1433=item $term->vt_emask_add ($x_event_mask)
1434
1435Adds the specified events to the vt event mask. Useful e.g. when you want
1436to receive pointer events all the times:
1437
1438 $term->vt_emask_add (urxvt::PointerMotionMask);
1439
1440=item $term->focus_in
1441
1442=item $term->focus_out
1443
1444=item $term->key_press ($state, $keycode[, $time])
1445
1446=item $term->key_release ($state, $keycode[, $time])
1447
1448Deliver various fake events to to terminal.
1449
892=item $window_width = $term->width 1450=item $window_width = $term->width
893 1451
894=item $window_height = $term->height 1452=item $window_height = $term->height
895 1453
896=item $font_width = $term->fwidth 1454=item $font_width = $term->fwidth
909 1467
910=item $max_scrollback = $term->saveLines 1468=item $max_scrollback = $term->saveLines
911 1469
912=item $nrow_plus_saveLines = $term->total_rows 1470=item $nrow_plus_saveLines = $term->total_rows
913 1471
914=item $lines_in_scrollback = $term->nsaved 1472=item $topmost_scrollback_row = $term->top_row
915 1473
916Return various integers describing terminal characteristics. 1474Return various integers describing terminal characteristics.
1475
1476=item $x_display = $term->display_id
1477
1478Return the DISPLAY used by rxvt-unicode.
1479
1480=item $lc_ctype = $term->locale
1481
1482Returns the LC_CTYPE category string used by this rxvt-unicode.
1483
1484=item $env = $term->env
1485
1486Returns a copy of the environment in effect for the terminal as a hashref
1487similar to C<\%ENV>.
1488
1489=item @envv = $term->envv
1490
1491Returns the environment as array of strings of the form C<VAR=VALUE>.
1492
1493=item @argv = $term->argv
1494
1495Return the argument vector as this terminal, similar to @ARGV, but
1496includes the program name as first element.
1497
1498=cut
1499
1500sub env {
1501 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1502}
917 1503
918=item $modifiermask = $term->ModLevel3Mask 1504=item $modifiermask = $term->ModLevel3Mask
919 1505
920=item $modifiermask = $term->ModMetaMask 1506=item $modifiermask = $term->ModMetaMask
921 1507
922=item $modifiermask = $term->ModNumLockMask 1508=item $modifiermask = $term->ModNumLockMask
923 1509
924Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1510Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
925AltGr), the meta key (often Alt) and the num lock key, if applicable. 1511AltGr), the meta key (often Alt) and the num lock key, if applicable.
926 1512
1513=item $screen = $term->current_screen
1514
1515Returns the currently displayed screen (0 primary, 1 secondary).
1516
1517=item $cursor_is_hidden = $term->hidden_cursor
1518
1519Returns wether the cursor is currently hidden or not.
1520
927=item $view_start = $term->view_start ([$newvalue]) 1521=item $view_start = $term->view_start ([$newvalue])
928 1522
929Returns the negative row number of the topmost line. Minimum value is 1523Returns the row number of the topmost displayed line. Maximum value is
930C<0>, which displays the normal terminal contents. Larger values scroll 1524C<0>, which displays the normal terminal contents. Lower values scroll
931this many lines into the scrollback buffer. 1525this many lines into the scrollback buffer.
932 1526
933=item $term->want_refresh 1527=item $term->want_refresh
934 1528
935Requests a screen refresh. At the next opportunity, rxvt-unicode will 1529Requests a screen refresh. At the next opportunity, rxvt-unicode will
950line, starting at column C<$start_col> (default C<0>), which is useful 1544line, starting at column C<$start_col> (default C<0>), which is useful
951to replace only parts of a line. The font index in the rendition will 1545to replace only parts of a line. The font index in the rendition will
952automatically be updated. 1546automatically be updated.
953 1547
954C<$text> is in a special encoding: tabs and wide characters that use more 1548C<$text> is in a special encoding: tabs and wide characters that use more
955than one cell when displayed are padded with urxvt::NOCHAR characters 1549than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
956(C<chr 65535>). Characters with combining characters and other characters 1550characters. Characters with combining characters and other characters that
957that do not fit into the normal tetx encoding will be replaced with 1551do not fit into the normal tetx encoding will be replaced with characters
958characters in the private use area. 1552in the private use area.
959 1553
960You have to obey this encoding when changing text. The advantage is 1554You have to obey this encoding when changing text. The advantage is
961that C<substr> and similar functions work on screen cells and not on 1555that C<substr> and similar functions work on screen cells and not on
962characters. 1556characters.
963 1557
1014Return the row number of the first/last row of the line, respectively. 1608Return the row number of the first/last row of the line, respectively.
1015 1609
1016=item $offset = $line->offset_of ($row, $col) 1610=item $offset = $line->offset_of ($row, $col)
1017 1611
1018Returns the character offset of the given row|col pair within the logical 1612Returns the character offset of the given row|col pair within the logical
1019line. 1613line. Works for rows outside the line, too, and returns corresponding
1614offsets outside the string.
1020 1615
1021=item ($row, $col) = $line->coord_of ($offset) 1616=item ($row, $col) = $line->coord_of ($offset)
1022 1617
1023Translates a string offset into terminal coordinates again. 1618Translates a string offset into terminal coordinates again.
1024 1619
1098 $offset / $self->{ncol} + $self->{beg}, 1693 $offset / $self->{ncol} + $self->{beg},
1099 $offset % $self->{ncol} 1694 $offset % $self->{ncol}
1100 ) 1695 )
1101} 1696}
1102 1697
1103=item ($row, $col) = $line->coord_of ($offset)
1104=item $text = $term->special_encode $string 1698=item $text = $term->special_encode $string
1105 1699
1106Converts a perl string into the special encoding used by rxvt-unicode, 1700Converts a perl string into the special encoding used by rxvt-unicode,
1107where one character corresponds to one screen cell. See 1701where one character corresponds to one screen cell. See
1108C<< $term->ROW_t >> for details. 1702C<< $term->ROW_t >> for details.
1110=item $string = $term->special_decode $text 1704=item $string = $term->special_decode $text
1111 1705
1112Converts rxvt-unicodes text reprsentation into a perl string. See 1706Converts rxvt-unicodes text reprsentation into a perl string. See
1113C<< $term->ROW_t >> for details. 1707C<< $term->ROW_t >> for details.
1114 1708
1709=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1710
1711=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1712
1713Register/unregister a synchronous button grab. See the XGrabButton
1714manpage.
1715
1716=item $success = $term->grab ($eventtime[, $sync])
1717
1718Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1719synchronous (C<$sync> is true). Also remembers the grab timestampe.
1720
1721=item $term->allow_events_async
1722
1723Calls XAllowEvents with AsyncBoth for the most recent grab.
1724
1725=item $term->allow_events_sync
1726
1727Calls XAllowEvents with SyncBoth for the most recent grab.
1728
1729=item $term->allow_events_replay
1730
1731Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1732recent grab.
1733
1734=item $term->ungrab
1735
1736Calls XUngrab for the most recent grab. Is called automatically on
1737evaluation errors, as it is better to lose the grab in the error case as
1738the session.
1739
1740=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1741
1742=item $atom_name = $term->XGetAtomName ($atom)
1743
1744=item @atoms = $term->XListProperties ($window)
1745
1746=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1747
1748=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1749
1750=item $term->XDeleteProperty ($window, $property)
1751
1752=item $window = $term->DefaultRootWindow
1753
1754=item $term->XReparentWindow ($window, $parent, [$x, $y])
1755
1756=item $term->XMapWindow ($window)
1757
1758=item $term->XUnmapWindow ($window)
1759
1760=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1761
1762=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1763
1764=item $term->XChangeInput ($window, $add_events[, $del_events])
1765
1766Various X or X-related functions. The C<$term> object only serves as
1767the source of the display, otherwise those functions map more-or-less
1768directory onto the X functions of the same name.
1769
1115=back 1770=back
1116 1771
1117=cut 1772=cut
1118 1773
1119package urxvt::popup; 1774package urxvt::popup;
1134 $item->{render} ||= sub { $_[0]{text} }; 1789 $item->{render} ||= sub { $_[0]{text} };
1135 1790
1136 push @{ $self->{item} }, $item; 1791 push @{ $self->{item} }, $item;
1137} 1792}
1138 1793
1139sub add_separator { 1794=item $popup->add_title ($title)
1140 my ($self, $sep) = @_;
1141 1795
1142 $sep ||= "═"; 1796Adds a non-clickable title to the popup.
1143 1797
1144 $self->add_item ({ 1798=cut
1145 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1146 text => "",
1147 render => sub { $sep x $urxvt::TERM->ncol },
1148 activate => sub { },
1149 });
1150}
1151 1799
1152sub add_title { 1800sub add_title {
1153 my ($self, $title) = @_; 1801 my ($self, $title) = @_;
1154 1802
1155 $self->add_item ({ 1803 $self->add_item ({
1157 text => $title, 1805 text => $title,
1158 activate => sub { }, 1806 activate => sub { },
1159 }); 1807 });
1160} 1808}
1161 1809
1810=item $popup->add_separator ([$sepchr])
1811
1812Creates a separator, optionally using the character given as C<$sepchr>.
1813
1814=cut
1815
1816sub add_separator {
1817 my ($self, $sep) = @_;
1818
1819 $sep ||= "=";
1820
1821 $self->add_item ({
1822 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1823 text => "",
1824 render => sub { $sep x $self->{term}->ncol },
1825 activate => sub { },
1826 });
1827}
1828
1829=item $popup->add_button ($text, $cb)
1830
1831Adds a clickable button to the popup. C<$cb> is called whenever it is
1832selected.
1833
1834=cut
1835
1162sub add_button { 1836sub add_button {
1163 my ($self, $text, $cb) = @_; 1837 my ($self, $text, $cb) = @_;
1164 1838
1165 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1839 $self->add_item ({ type => "button", text => $text, activate => $cb});
1166} 1840}
1841
1842=item $popup->add_toggle ($text, $initial_value, $cb)
1843
1844Adds a toggle/checkbox item to the popup. The callback gets called
1845whenever it gets toggled, with a boolean indicating its new value as its
1846first argument.
1847
1848=cut
1167 1849
1168sub add_toggle { 1850sub add_toggle {
1169 my ($self, $text, $cb, $value) = @_; 1851 my ($self, $text, $value, $cb) = @_;
1170 1852
1171 my $item; $item = { 1853 my $item; $item = {
1172 type => "button", 1854 type => "button",
1173 text => " $text", 1855 text => " $text",
1174 value => $value, 1856 value => $value,
1175 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1857 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1176 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1858 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1177 }; 1859 };
1178 1860
1179 $self->add_item ($item); 1861 $self->add_item ($item);
1180} 1862}
1863
1864=item $popup->show
1865
1866Displays the popup (which is initially hidden).
1867
1868=cut
1181 1869
1182sub show { 1870sub show {
1183 my ($self) = @_; 1871 my ($self) = @_;
1184 1872
1185 local $urxvt::popup::self = $self; 1873 local $urxvt::popup::self = $self;
1186 1874
1187 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1875 my $env = $self->{term}->env;
1876 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1877 delete $env->{LC_ALL};
1878 $env->{LC_CTYPE} = $self->{term}->locale;
1879
1880 urxvt::term->new ($env, "popup",
1881 "--perl-lib" => "", "--perl-ext-common" => "",
1882 "-pty-fd" => -1, "-sl" => 0,
1883 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1188 "--transient-for" => $self->{term}->parent, 1884 "--transient-for" => $self->{term}->parent,
1885 "-display" => $self->{term}->display_id,
1189 "-pe" => "urxvt-popup") 1886 "-pe" => "urxvt-popup")
1190 or die "unable to create popup window\n"; 1887 or die "unable to create popup window\n";
1191} 1888}
1192 1889
1193sub DESTROY { 1890sub DESTROY {
1194 my ($self) = @_; 1891 my ($self) = @_;
1195 1892
1196 delete $self->{term}{_destroy}{$self}; 1893 delete $self->{term}{_destroy}{$self};
1197 $self->{term}->ungrab; 1894 $self->{term}->ungrab;
1198} 1895}
1896
1897=back
1898
1899=cut
1900
1901package urxvt::watcher;
1902
1903@urxvt::timer::ISA = __PACKAGE__;
1904@urxvt::iow::ISA = __PACKAGE__;
1905@urxvt::pw::ISA = __PACKAGE__;
1906@urxvt::iw::ISA = __PACKAGE__;
1199 1907
1200=head2 The C<urxvt::timer> Class 1908=head2 The C<urxvt::timer> Class
1201 1909
1202This class implements timer watchers/events. Time is represented as a 1910This class implements timer watchers/events. Time is represented as a
1203fractional number of seconds since the epoch. Example: 1911fractional number of seconds since the epoch. Example:
1242 1950
1243=item $timer = $timer->start ($tstamp) 1951=item $timer = $timer->start ($tstamp)
1244 1952
1245Set the event trigger time to C<$tstamp> and start the timer. 1953Set the event trigger time to C<$tstamp> and start the timer.
1246 1954
1955=item $timer = $timer->after ($delay)
1956
1957Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1958
1247=item $timer = $timer->stop 1959=item $timer = $timer->stop
1248 1960
1249Stop the timer. 1961Stop the timer.
1250 1962
1251=back 1963=back
1256 1968
1257 $term->{socket} = ... 1969 $term->{socket} = ...
1258 $term->{iow} = urxvt::iow 1970 $term->{iow} = urxvt::iow
1259 ->new 1971 ->new
1260 ->fd (fileno $term->{socket}) 1972 ->fd (fileno $term->{socket})
1261 ->events (1) # wait for read data 1973 ->events (urxvt::EVENT_READ)
1262 ->start 1974 ->start
1263 ->cb (sub { 1975 ->cb (sub {
1264 my ($iow, $revents) = @_; 1976 my ($iow, $revents) = @_;
1265 # $revents must be 1 here, no need to check 1977 # $revents must be 1 here, no need to check
1266 sysread $term->{socket}, my $buf, 8192 1978 sysread $term->{socket}, my $buf, 8192
1283 1995
1284Set the filedescriptor (not handle) to watch. 1996Set the filedescriptor (not handle) to watch.
1285 1997
1286=item $iow = $iow->events ($eventmask) 1998=item $iow = $iow->events ($eventmask)
1287 1999
1288Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 2000Set the event mask to watch. The only allowed values are
1289data, Bit #1 (value C<2>) enables watching for write data. 2001C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
2002together, or C<urxvt::EVENT_NONE>.
1290 2003
1291=item $iow = $iow->start 2004=item $iow = $iow->start
1292 2005
1293Start watching for requested events on the given handle. 2006Start watching for requested events on the given handle.
1294 2007
1295=item $iow = $iow->stop 2008=item $iow = $iow->stop
1296 2009
1297Stop watching for events on the given filehandle. 2010Stop watching for events on the given filehandle.
2011
2012=back
2013
2014=head2 The C<urxvt::iw> Class
2015
2016This class implements idle watchers, that get called automatically when
2017the process is idle. They should return as fast as possible, after doing
2018some useful work.
2019
2020=over 4
2021
2022=item $iw = new urxvt::iw
2023
2024Create a new idle watcher object in stopped state.
2025
2026=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2027
2028Set the callback to be called when the watcher triggers.
2029
2030=item $timer = $timer->start
2031
2032Start the watcher.
2033
2034=item $timer = $timer->stop
2035
2036Stop the watcher.
2037
2038=back
2039
2040=head2 The C<urxvt::pw> Class
2041
2042This class implements process watchers. They create an event whenever a
2043process exits, after which they stop automatically.
2044
2045 my $pid = fork;
2046 ...
2047 $term->{pw} = urxvt::pw
2048 ->new
2049 ->start ($pid)
2050 ->cb (sub {
2051 my ($pw, $exit_status) = @_;
2052 ...
2053 });
2054
2055=over 4
2056
2057=item $pw = new urxvt::pw
2058
2059Create a new process watcher in stopped state.
2060
2061=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2062
2063Set the callback to be called when the timer triggers.
2064
2065=item $pw = $timer->start ($pid)
2066
2067Tells the wqtcher to start watching for process C<$pid>.
2068
2069=item $pw = $pw->stop
2070
2071Stop the watcher.
1298 2072
1299=back 2073=back
1300 2074
1301=head1 ENVIRONMENT 2075=head1 ENVIRONMENT
1302 2076
1309 2083
1310=item == 0 - fatal messages 2084=item == 0 - fatal messages
1311 2085
1312=item >= 3 - script loading and management 2086=item >= 3 - script loading and management
1313 2087
1314=item >=10 - all events received 2088=item >=10 - all called hooks
2089
2090=item >=11 - hook reutrn values
1315 2091
1316=back 2092=back
1317 2093
1318=head1 AUTHOR 2094=head1 AUTHOR
1319 2095

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