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Revision 1.110 by root, Thu Jan 19 16:22:13 2006 UTC vs.
Revision 1.144 by root, Mon Aug 7 15:59:44 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, extension scripts specified via 22Every time a terminal object gets created, extension scripts specified via
23the C<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
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
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
39 43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
58 URxvt.selection.pattern-1: perl-regex 62 URxvt.selection.pattern-1: perl-regex
59 ... 63 ...
60 64
61The index number (0, 1...) must not have any holes, and each regex must 65The index number (0, 1...) must not have any holes, and each regex must
62contain at least one pair of capturing parentheses, which will be used for 66contain at least one pair of capturing parentheses, which will be used for
63the match. For example, the followign adds a regex that matches everything 67the match. For example, the following adds a regex that matches everything
64between two vertical bars: 68between two vertical bars:
65 69
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 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: ^(/[^:]+):\
67 78
68You can look at the source of the selection extension to see more 79You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 80interesting uses, such as parsing a line from beginning to end.
70 81
71This extension also offers following bindable keyboard commands: 82This extension also offers following bindable keyboard commands:
83=item option-popup (enabled by default) 94=item option-popup (enabled by default)
84 95
85Binds 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
86runtime. 97runtime.
87 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
88=item selection-popup (enabled by default) 116=item selection-popup (enabled by default)
89 117
90Binds 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
91text into various other formats/action (such as uri unescaping, perl 119text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 120evaluation, web-browser starting etc.), depending on content.
93 121
94Other extensions can extend this popup menu by pushing a code reference 122Other extensions can extend this popup menu by pushing a code reference
95onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the 123onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
96popup is displayed. 124popup is being displayed.
97 125
98It's sole argument is the popup menu, which can be modified. The selection 126It's sole argument is the popup menu, which can be modified. The selection
99is in C<$_>, which can be used to decide wether to add something or not. 127is in C<$_>, which can be used to decide whether to add something or not.
100It should either return nothing or a string and a code reference. The 128It should either return nothing or a string and a code reference. The
101string will be used as button text and the code reference will be called 129string will be used as button text and the code reference will be called
102when the button gets activated and should transform C<$_>. 130when the button gets activated and should transform C<$_>.
103 131
104The following will add an entry C<a to b> that transforms all C<a>s in 132The following will add an entry C<a to b> that transforms all C<a>s in
123bottom. C<Escape> leaves search mode and returns to the point where search 151bottom. C<Escape> leaves search mode and returns to the point where search
124was started, while C<Enter> or C<Return> stay at the current position and 152was started, while C<Enter> or C<Return> stay at the current position and
125additionally stores the first match in the current line into the primary 153additionally stores the first match in the current line into the primary
126selection. 154selection.
127 155
156The regex defaults to "(?i)", resulting in a case-insensitive search. To
157get a case-sensitive search you can delete this prefix using C<BackSpace>
158or simply use an uppercase character which removes the "(?i)" prefix.
159
160See L<perlre> for more info about perl regular expression syntax.
161
162=item readline (enabled by default)
163
164A support package that tries to make editing with readline easier. At
165the moment, it reacts to clicking shift-left mouse button by trying to
166move the text cursor to this position. It does so by generating as many
167cursor-left or cursor-right keypresses as required (the this only works
168for programs that correctly support wide characters).
169
170To avoid too many false positives, this is only done when:
171
172=over 4
173
174=item - the tty is in ICANON state.
175
176=item - the text cursor is visible.
177
178=item - the primary screen is currently being displayed.
179
180=item - the mouse is on the same (multi-row-) line as the text cursor.
181
182=back
183
184The normal selection mechanism isn't disabled, so quick successive clicks
185might interfere with selection creation in harmless ways.
186
128=item selection-autotransform 187=item selection-autotransform
129 188
130This selection allows you to do automatic transforms on a selection 189This selection allows you to do automatic transforms on a selection
131whenever a selection is made. 190whenever a selection is made.
132 191
157 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/ 216 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
158 217
159The first line tells the selection code to treat the unchanging part of 218The first line tells the selection code to treat the unchanging part of
160every error message as a selection pattern, and the second line transforms 219every error message as a selection pattern, and the second line transforms
161the message into vi commands to load the file. 220the message into vi commands to load the file.
221
222=item tabbed
223
224This transforms the terminal into a tabbar with additional terminals, that
225is, it implements what is commonly referred to as "tabbed terminal". The topmost line
226displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
227button per tab.
228
229Clicking a button will activate that tab. Pressing B<Shift-Left> and
230B<Shift-Right> will switch to the tab left or right of the current one,
231while B<Shift-Down> creates a new tab.
232
233The tabbar itself can be configured similarly to a normal terminal, but
234with a resource class of C<URxvt.tabbed>. In addition, it supports the
235following four resources (shown with defaults):
236
237 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
238 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
239 URxvt.tabbed.tab-fg: <colour-index, default 0>
240 URxvt.tabbed.tab-bg: <colour-index, default 1>
241
242See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
243indices.
162 244
163=item mark-urls 245=item mark-urls
164 246
165Uses per-line display filtering (C<on_line_update>) to underline urls and 247Uses per-line display filtering (C<on_line_update>) to underline urls and
166make them clickable. When middle-clicked, the program specified in the 248make them clickable. When middle-clicked, the program specified in the
167resource C<urlLauncher> (default C<x-www-browser>) will be started with 249resource C<urlLauncher> (default C<x-www-browser>) will be started with
168the URL as first argument. 250the URL as first argument.
169 251
252=item xim-onthespot
253
254This (experimental) perl extension implements OnTheSpot editing. It does
255not work perfectly, and some input methods don't seem to work well with
256OnTheSpot editing in general, but it seems to work at leats for SCIM and
257kinput2.
258
259You enable it by specifying this extension and a preedit style of
260C<OnTheSpot>, i.e.:
261
262 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
263
264=item kuake<hotkey>
265
266A very primitive quake-console-like extension. It was inspired by a
267description of how the programs C<kuake> and C<yakuake> work: Whenever the
268user presses a global accelerator key (by default C<F10>), the terminal
269will show or hide itself. Another press of the accelerator key will hide
270or show it again.
271
272Initially, the window will not be shown when using this extension.
273
274This is useful if you need a single terminal thats not using any desktop
275space most of the time but is quickly available at the press of a key.
276
277The accelerator key is grabbed regardless of any modifiers, so this
278extension will actually grab a physical key just for this function.
279
280If you want a quake-like animation, tell your window manager to do so
281(fvwm can do it).
282
170=item automove-background 283=item automove-background
171 284
172This is basically a one-line extension that dynamically changes the background pixmap offset 285This is basically a very small extension that dynamically changes the
173to the window position, in effect creating the same effect as pseudo transparency with 286background pixmap offset to the window position, in effect creating the
174a custom pixmap. No scaling is supported in this mode. Exmaple: 287same effect as pseudo transparency with a custom pixmap. No scaling is
288supported in this mode. Example:
175 289
176 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background 290 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
177 291
178=item block-graphics-to-ascii 292=item block-graphics-to-ascii
179 293
180A not very useful example of filtering all text output to the terminal, 294A not very useful example of filtering all text output to the terminal
181by replacing all line-drawing characters (U+2500 .. U+259F) by a 295by replacing all line-drawing characters (U+2500 .. U+259F) by a
182similar-looking ascii character. 296similar-looking ascii character.
183 297
184=item digital-clock 298=item digital-clock
185 299
186Displays a digital clock using the built-in overlay. 300Displays a digital clock using the built-in overlay.
187 301
188=item example-refresh-hooks 302=item remote-clipboard
189 303
190Displays a very simple digital clock in the upper right corner of the 304Somewhat of a misnomer, this extension adds two menu entries to the
191window. Illustrates overwriting the refresh callbacks to create your own 305selection popup that allows one ti run external commands to store the
192overlays or changes. 306selection somewhere and fetch it again.
307
308We use it to implement a "distributed selection mechanism", which just
309means that one command uploads the file to a remote server, and another
310reads it.
311
312The commands can be set using the C<URxvt.remote-selection.store> and
313C<URxvt.remote-selection.fetch> resources. The first should read the
314selection to store from STDIN (always in UTF-8), the second should provide
315the selection data on STDOUT (also in UTF-8).
316
317The defaults (which are likely useless to you) use rsh and cat:
318
319 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
320 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
193 321
194=item selection-pastebin 322=item selection-pastebin
195 323
196This is a little rarely useful extension that Uploads the selection as 324This is a little rarely useful extension that Uploads the selection as
197textfile to a remote site (or does other things). (The implementation is 325textfile to a remote site (or does other things). (The implementation is
217After a successful upload the selection will be replaced by the text given 345After a successful upload the selection will be replaced by the text given
218in the C<selection-pastebin-url> resource (again, the % is the placeholder 346in the C<selection-pastebin-url> resource (again, the % is the placeholder
219for the filename): 347for the filename):
220 348
221 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% 349 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
350
351=item example-refresh-hooks
352
353Displays a very simple digital clock in the upper right corner of the
354window. Illustrates overwriting the refresh callbacks to create your own
355overlays or changes.
222 356
223=back 357=back
224 358
225=head1 API DOCUMENTATION 359=head1 API DOCUMENTATION
226 360
260 394
261=back 395=back
262 396
263=head2 Extension Objects 397=head2 Extension Objects
264 398
265Very perl extension is a perl class. A separate perl object is created 399Every perl extension is a perl class. A separate perl object is created
266for each terminal and each extension and passed as the first parameter to 400for each terminal and each extension and passed as the first parameter to
267hooks. So extensions can use their C<$self> object without having to think 401hooks. So extensions can use their C<$self> object without having to think
268about other extensions, with the exception of methods and members that 402about other extensions, with the exception of methods and members that
269begin with an underscore character C<_>: these are reserved for internal 403begin with an underscore character C<_>: these are reserved for internal
270use. 404use.
296=head2 Hooks 430=head2 Hooks
297 431
298The following subroutines can be declared in extension files, and will be 432The following subroutines can be declared in extension files, and will be
299called whenever the relevant event happens. 433called whenever the relevant event happens.
300 434
301The first argument passed to them is an extension oject as described in 435The first argument passed to them is an extension object as described in
302the in the C<Extension Objects> section. 436the in the C<Extension Objects> section.
303 437
304B<All> of these hooks must return a boolean value. If it is true, then the 438B<All> of these hooks must return a boolean value. If any of the called
305event counts as being I<consumed>, and the invocation of other hooks is 439hooks returns true, then the event counts as being I<consumed>, and the
306skipped, and the relevant action might not be carried out by the C++ code. 440relevant action might not be carried out by the C++ code.
307 441
308I<< When in doubt, return a false value (preferably C<()>). >> 442I<< When in doubt, return a false value (preferably C<()>). >>
309 443
310=over 4 444=over 4
311 445
312=item on_init $term 446=item on_init $term
313 447
314Called after a new terminal object has been initialized, but before 448Called after a new terminal object has been initialized, but before
315windows are created or the command gets run. Most methods are unsafe to 449windows are created or the command gets run. Most methods are unsafe to
316call or deliver senseless data, as terminal size and other characteristics 450call or deliver senseless data, as terminal size and other characteristics
317have not yet been determined. You can safely query and change resources, 451have not yet been determined. You can safely query and change resources
318though. 452and options, though. For many purposes the C<on_start> hook is a better
453place.
454
455=item on_start $term
456
457Called at the very end of initialisation of a new terminal, just before
458trying to map (display) the toplevel and returning to the main loop.
459
460=item on_destroy $term
461
462Called whenever something tries to destroy terminal, when the terminal is
463still fully functional (not for long, though).
319 464
320=item on_reset $term 465=item on_reset $term
321 466
322Called after the screen is "reset" for any reason, such as resizing or 467Called after the screen is "reset" for any reason, such as resizing or
323control sequences. Here is where you can react on changes to size-related 468control sequences. Here is where you can react on changes to size-related
324variables. 469variables.
325 470
326=item on_start $term
327
328Called at the very end of initialisation of a new terminal, just before
329returning to the mainloop.
330
331=item on_child_start $term, $pid 471=item on_child_start $term, $pid
332 472
333Called just after the child process has been C<fork>ed. 473Called just after the child process has been C<fork>ed.
334 474
335=item on_child_exit $term, $status 475=item on_child_exit $term, $status
350 490
351Called whenever a selection has been copied, but before the selection is 491Called whenever a selection has been copied, but before the selection is
352requested from the server. The selection text can be queried and changed 492requested from the server. The selection text can be queried and changed
353by calling C<< $term->selection >>. 493by calling C<< $term->selection >>.
354 494
355Returning a true value aborts selection grabbing. It will still be hilighted. 495Returning a true value aborts selection grabbing. It will still be highlighted.
356 496
357=item on_sel_extend $term 497=item on_sel_extend $term
358 498
359Called whenever the user tries to extend the selection (e.g. with a double 499Called whenever the user tries to extend the selection (e.g. with a double
360click) and is either supposed to return false (normal operation), or 500click) and is either supposed to return false (normal operation), or
361should extend the selection itelf and return true to suppress the built-in 501should extend the selection itself and return true to suppress the built-in
362processing. This can happen multiple times, as long as the callback 502processing. This can happen multiple times, as long as the callback
363returns true, it will be called on every further click by the user and is 503returns true, it will be called on every further click by the user and is
364supposed to enlarge the selection more and more, if possible. 504supposed to enlarge the selection more and more, if possible.
365 505
366See the F<selection> example extension. 506See the F<selection> example extension.
367 507
368=item on_view_change $term, $offset 508=item on_view_change $term, $offset
369 509
370Called whenever the view offset changes, i..e the user or program 510Called whenever the view offset changes, i.e. the user or program
371scrolls. Offset C<0> means display the normal terminal, positive values 511scrolls. Offset C<0> means display the normal terminal, positive values
372show this many lines of scrollback. 512show this many lines of scrollback.
373 513
374=item on_scroll_back $term, $lines, $saved 514=item on_scroll_back $term, $lines, $saved
375 515
379 519
380It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 520It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
381$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 521$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
382number of lines that will be in the scrollback buffer. 522number of lines that will be in the scrollback buffer.
383 523
524=item on_osc_seq $term, $op, $args
525
526Called on every OSC sequence and can be used to suppress it or modify its
527behaviour. The default should be to return an empty list. A true value
528suppresses execution of the request completely. Make sure you don't get
529confused by recursive invocations when you output an osc sequence within
530this callback.
531
532C<on_osc_seq_perl> should be used for new behaviour.
533
384=item on_osc_seq $term, $string 534=item on_osc_seq_perl $term, $string
385 535
386Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 536Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
387operating system command) is processed. Cursor position and other state 537operating system command) is processed. Cursor position and other state
388information is up-to-date when this happens. For interoperability, the 538information is up-to-date when this happens. For interoperability, the
389string should start with the extension name and a colon, to distinguish 539string should start with the extension name and a colon, to distinguish
390it from commands for other extensions, and this might be enforced in the 540it from commands for other extensions, and this might be enforced in the
391future. 541future.
392 542
393Be careful not ever to trust (in a security sense) the data you receive, 543Be careful not ever to trust (in a security sense) the data you receive,
394as its source can not easily be controleld (e-mail content, messages from 544as its source can not easily be controlled (e-mail content, messages from
395other users on the same system etc.). 545other users on the same system etc.).
396 546
397=item on_add_lines $term, $string 547=item on_add_lines $term, $string
398 548
399Called whenever text is about to be output, with the text as argument. You 549Called whenever text is about to be output, with the text as argument. You
430 580
431=item on_refresh_end $term 581=item on_refresh_end $term
432 582
433Called just after the screen gets redrawn. See C<on_refresh_begin>. 583Called just after the screen gets redrawn. See C<on_refresh_begin>.
434 584
435=item on_keyboard_command $term, $string 585=item on_user_command $term, $string
436 586
437Called whenever the user presses a key combination that has a 587Called whenever a user-configured event is being activated (e.g. via
438C<perl:string> action bound to it (see description of the B<keysym> 588a C<perl:string> action bound to a key, see description of the B<keysym>
439resource in the @@RXVT_NAME@@(1) manpage). 589resource in the @@RXVT_NAME@@(1) manpage).
590
591The event is simply the action string. This interface is assumed to change
592slightly in the future.
593
594=item on_resize_all_windows $tern, $new_width, $new_height
595
596Called just after the new window size has been calculated, but before
597windows are actually being resized or hints are being set. If this hook
598returns TRUE, setting of the window hints is being skipped.
440 599
441=item on_x_event $term, $event 600=item on_x_event $term, $event
442 601
443Called on every X event received on the vt window (and possibly other 602Called on every X event received on the vt window (and possibly other
444windows). Should only be used as a last resort. Most event structure 603windows). Should only be used as a last resort. Most event structure
445members are not passed. 604members are not passed.
446 605
606=item on_root_event $term, $event
607
608Like C<on_x_event>, but is called for events on the root window.
609
447=item on_focus_in $term 610=item on_focus_in $term
448 611
449Called whenever the window gets the keyboard focus, before rxvt-unicode 612Called whenever the window gets the keyboard focus, before rxvt-unicode
450does focus in processing. 613does focus in processing.
451 614
452=item on_focus_out $term 615=item on_focus_out $term
453 616
454Called wheneever the window loses keyboard focus, before rxvt-unicode does 617Called whenever the window loses keyboard focus, before rxvt-unicode does
455focus out processing. 618focus out processing.
456 619
457=item on_configure_notify $term, $event 620=item on_configure_notify $term, $event
621
622=item on_property_notify $term, $event
458 623
459=item on_key_press $term, $event, $keysym, $octets 624=item on_key_press $term, $event, $keysym, $octets
460 625
461=item on_key_release $term, $event, $keysym 626=item on_key_release $term, $event, $keysym
462 627
472 637
473Called whenever the corresponding X event is received for the terminal If 638Called whenever the corresponding X event is received for the terminal If
474the hook returns true, then the even will be ignored by rxvt-unicode. 639the hook returns true, then the even will be ignored by rxvt-unicode.
475 640
476The event is a hash with most values as named by Xlib (see the XEvent 641The event is a hash with most values as named by Xlib (see the XEvent
477manpage), with the additional members C<row> and C<col>, which are the row 642manpage), with the additional members C<row> and C<col>, which are the
478and column under the mouse cursor. 643(real, not screen-based) row and column under the mouse cursor.
479 644
480C<on_key_press> additionally receives the string rxvt-unicode would 645C<on_key_press> additionally receives the string rxvt-unicode would
481output, if any, in locale-specific encoding. 646output, if any, in locale-specific encoding.
482 647
483subwindow. 648subwindow.
649
650=item on_client_message $term, $event
651
652=item on_wm_protocols $term, $event
653
654=item on_wm_delete_window $term, $event
655
656Called when various types of ClientMessage events are received (all with
657format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
484 658
485=back 659=back
486 660
487=cut 661=cut
488 662
494use Scalar::Util (); 668use Scalar::Util ();
495use List::Util (); 669use List::Util ();
496 670
497our $VERSION = 1; 671our $VERSION = 1;
498our $TERM; 672our $TERM;
673our @TERM_INIT;
674our @TERM_EXT;
499our @HOOKNAME; 675our @HOOKNAME;
500our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 676our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
501our %OPTION; 677our %OPTION;
502 678
503our $LIBDIR; 679our $LIBDIR;
504our $RESNAME; 680our $RESNAME;
505our $RESCLASS; 681our $RESCLASS;
506our $RXVTNAME; 682our $RXVTNAME;
507 683
684our $NOCHAR = chr 0xffff;
685
508=head2 Variables in the C<urxvt> Package 686=head2 Variables in the C<urxvt> Package
509 687
510=over 4 688=over 4
511 689
512=item $urxvt::LIBDIR 690=item $urxvt::LIBDIR
524 702
525=item $urxvt::TERM 703=item $urxvt::TERM
526 704
527The current terminal. This variable stores the current C<urxvt::term> 705The current terminal. This variable stores the current C<urxvt::term>
528object, whenever a callback/hook is executing. 706object, whenever a callback/hook is executing.
707
708=item @urxvt::TERM_INIT
709
710All code references in this array will be called as methods of the next newly
711created C<urxvt::term> object (during the C<on_init> phase). The array
712gets cleared before the code references that were in it are being executed,
713so references can push themselves onto it again if they so desire.
714
715This complements to the perl-eval command line option, but gets executed
716first.
717
718=item @urxvt::TERM_EXT
719
720Works similar to C<@TERM_INIT>, but contains perl package/class names, which
721get registered as normal extensions after calling the hooks in C<@TERM_INIT>
722but before other extensions. Gets cleared just like C<@TERM_INIT>.
529 723
530=back 724=back
531 725
532=head2 Functions in the C<urxvt> Package 726=head2 Functions in the C<urxvt> Package
533 727
547 741
548Using this function has the advantage that its output ends up in the 742Using this function has the advantage that its output ends up in the
549correct place, e.g. on stderr of the connecting urxvtc client. 743correct place, e.g. on stderr of the connecting urxvtc client.
550 744
551Messages have a size limit of 1023 bytes currently. 745Messages have a size limit of 1023 bytes currently.
746
747=item @terms = urxvt::termlist
748
749Returns all urxvt::term objects that exist in this process, regardless of
750whether they are started, being destroyed etc., so be careful. Only term
751objects that have perl extensions attached will be returned (because there
752is no urxvt::term objet associated with others).
552 753
553=item $time = urxvt::NOW 754=item $time = urxvt::NOW
554 755
555Returns the "current time" (as per the event loop). 756Returns the "current time" (as per the event loop).
556 757
614Return the foreground/background colour index, respectively. 815Return the foreground/background colour index, respectively.
615 816
616=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour 817=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
617 818
618=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour 819=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
820
821=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
619 822
620Replace the foreground/background colour in the rendition mask with the 823Replace the foreground/background colour in the rendition mask with the
621specified one. 824specified one.
622 825
623=item $value = urxvt::GET_CUSTOM $rend 826=item $value = urxvt::GET_CUSTOM $rend
642 unless $msg =~ /\n$/; 845 unless $msg =~ /\n$/;
643 urxvt::warn ($msg); 846 urxvt::warn ($msg);
644 }; 847 };
645} 848}
646 849
850no warnings 'utf8';
851
647my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 852my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
648 853
649sub verbose { 854sub verbose {
650 my ($level, $msg) = @_; 855 my ($level, $msg) = @_;
651 warn "$msg\n" if $level <= $verbosity; 856 warn "$msg\n" if $level <= $verbosity;
654my %extension_pkg; 859my %extension_pkg;
655 860
656# load a single script into its own package, once only 861# load a single script into its own package, once only
657sub extension_package($) { 862sub extension_package($) {
658 my ($path) = @_; 863 my ($path) = @_;
659
660 no strict 'refs';
661 864
662 $extension_pkg{$path} ||= do { 865 $extension_pkg{$path} ||= do {
663 $path =~ /([^\/\\]+)$/; 866 $path =~ /([^\/\\]+)$/;
664 my $pkg = $1; 867 my $pkg = $1;
665 $pkg =~ s/[^[:word:]]/_/g; 868 $pkg =~ s/[^[:word:]]/_/g;
668 verbose 3, "loading extension '$path' into package '$pkg'"; 871 verbose 3, "loading extension '$path' into package '$pkg'";
669 872
670 open my $fh, "<:raw", $path 873 open my $fh, "<:raw", $path
671 or die "$path: $!"; 874 or die "$path: $!";
672 875
673 @{"$pkg\::ISA"} = urxvt::term::extension::;
674
675 my $source = 876 my $source =
676 "package $pkg; use strict; use utf8;\n" 877 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
677 . "#line 1 \"$path\"\n{\n" 878 . "#line 1 \"$path\"\n{\n"
678 . (do { local $/; <$fh> }) 879 . (do { local $/; <$fh> })
679 . "\n};\n1"; 880 . "\n};\n1";
680 881
681 eval $source 882 eval $source
695 if ($htype == 0) { # INIT 896 if ($htype == 0) { # INIT
696 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 897 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
697 898
698 my %ext_arg; 899 my %ext_arg;
699 900
901 {
902 my @init = @TERM_INIT;
903 @TERM_INIT = ();
904 $_->($TERM) for @init;
905 my @pkg = @TERM_EXT;
906 @TERM_EXT = ();
907 $TERM->register_package ($_) for @pkg;
908 }
909
700 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 910 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
701 if ($_ eq "default") { 911 if ($_ eq "default") {
702 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 912 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
703 } elsif (/^-(.*)$/) { 913 } elsif (/^-(.*)$/) {
704 delete $ext_arg{$1}; 914 delete $ext_arg{$1};
705 } elsif (/^([^<]+)<(.*)>$/) { 915 } elsif (/^([^<]+)<(.*)>$/) {
706 push @{ $ext_arg{$1} }, $2; 916 push @{ $ext_arg{$1} }, $2;
707 } else { 917 } else {
708 $ext_arg{$_} ||= []; 918 $ext_arg{$_} ||= [];
709 } 919 }
710 } 920 }
711 921
712 while (my ($ext, $argv) = each %ext_arg) { 922 for my $ext (sort keys %ext_arg) {
713 my @files = grep -f $_, map "$_/$ext", @dirs; 923 my @files = grep -f $_, map "$_/$ext", @dirs;
714 924
715 if (@files) { 925 if (@files) {
716 $TERM->register_package (extension_package $files[0], $argv); 926 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
717 } else { 927 } else {
718 warn "perl extension '$ext' not found in perl library search path\n"; 928 warn "perl extension '$ext' not found in perl library search path\n";
719 } 929 }
720 } 930 }
721 931
727 937
728 if (my $cb = $TERM->{_hook}[$htype]) { 938 if (my $cb = $TERM->{_hook}[$htype]) {
729 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 939 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
730 if $verbosity >= 10; 940 if $verbosity >= 10;
731 941
732 keys %$cb; 942 for my $pkg (keys %$cb) {
733
734 while (my ($pkg, $cb) = each %$cb) {
735 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 943 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
736 and last; 944 $retval ||= $retval_;
737 945
738 if ($@) { 946 if ($@) {
739 $TERM->ungrab; # better to lose the grab than the session 947 $TERM->ungrab; # better to lose the grab than the session
740 warn $@; 948 warn $@;
741 } 949 }
752 # clear package 960 # clear package
753 %$TERM = (); 961 %$TERM = ();
754 } 962 }
755 963
756 $retval 964 $retval
965}
966
967sub SET_COLOR($$$) {
968 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
757} 969}
758 970
759# urxvt::term::extension 971# urxvt::term::extension
760 972
761package urxvt::term::extension; 973package urxvt::term::extension;
900# find on_xxx subs in the package and register them 1112# find on_xxx subs in the package and register them
901# as hooks 1113# as hooks
902sub register_package { 1114sub register_package {
903 my ($self, $pkg, $argv) = @_; 1115 my ($self, $pkg, $argv) = @_;
904 1116
1117 no strict 'refs';
1118
1119 urxvt::verbose 6, "register package $pkg to $self";
1120
1121 @{"$pkg\::ISA"} = urxvt::term::extension::;
1122
905 my $proxy = bless { 1123 my $proxy = bless {
906 _pkg => $pkg, 1124 _pkg => $pkg,
907 argv => $argv, 1125 argv => $argv,
908 }, $pkg; 1126 }, $pkg;
909 Scalar::Util::weaken ($proxy->{term} = $self); 1127 Scalar::Util::weaken ($proxy->{term} = $self);
924hash which defines the environment of the new terminal. 1142hash which defines the environment of the new terminal.
925 1143
926Croaks (and probably outputs an error message) if the new instance 1144Croaks (and probably outputs an error message) if the new instance
927couldn't be created. Returns C<undef> if the new instance didn't 1145couldn't be created. Returns C<undef> if the new instance didn't
928initialise perl, and the terminal object otherwise. The C<init> and 1146initialise perl, and the terminal object otherwise. The C<init> and
929C<start> hooks will be called during this call. 1147C<start> hooks will be called before this call returns, and are free to
1148refer to global data (which is race free).
930 1149
931=cut 1150=cut
932 1151
933sub new { 1152sub new {
934 my ($class, $env, @args) = @_; 1153 my ($class, $env, @args) = @_;
935 1154
1155 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1156 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1157
936 _new ([ map "$_=$env->{$_}", keys %$env ], @args); 1158 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
937} 1159}
938 1160
939=item $term->destroy 1161=item $term->destroy
940 1162
941Destroy the terminal object (close the window, free resources 1163Destroy the terminal object (close the window, free resources
971 1193
972Returns true if the option specified by C<$optval> is enabled, and 1194Returns true if the option specified by C<$optval> is enabled, and
973optionally change it. All option values are stored by name in the hash 1195optionally change it. All option values are stored by name in the hash
974C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1196C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
975 1197
976Here is a a likely non-exhaustive list of option names, please see the 1198Here is a likely non-exhaustive list of option names, please see the
977source file F</src/optinc.h> to see the actual list: 1199source file F</src/optinc.h> to see the actual list:
978 1200
979 borderLess console cursorBlink cursorUnderline hold iconic insecure 1201 borderLess console cursorBlink cursorUnderline hold iconic insecure
980 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1202 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
981 override-redirect pastableTabs pointerBlank reverseVideo scrollBar 1203 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
998likely change). 1220likely change).
999 1221
1000Please note that resource strings will currently only be freed when the 1222Please note that resource strings will currently only be freed when the
1001terminal is destroyed, so changing options frequently will eat memory. 1223terminal is destroyed, so changing options frequently will eat memory.
1002 1224
1003Here is a a likely non-exhaustive list of resource names, not all of which 1225Here is a likely non-exhaustive list of resource names, not all of which
1004are supported in every build, please see the source file F</src/rsinc.h> 1226are supported in every build, please see the source file F</src/rsinc.h>
1005to see the actual list: 1227to see the actual list:
1006 1228
1007 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1229 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
1008 borderLess color cursorBlink cursorUnderline cutchars delete_key 1230 borderLess color cursorBlink cursorUnderline cutchars delete_key
1198 1420
1199Normally its not a good idea to use this function, as programs might be 1421Normally its not a good idea to use this function, as programs might be
1200confused by changes in cursor position or scrolling. Its useful inside a 1422confused by changes in cursor position or scrolling. Its useful inside a
1201C<on_add_lines> hook, though. 1423C<on_add_lines> hook, though.
1202 1424
1425=item $term->scr_change_screen ($screen)
1426
1427Switch to given screen - 0 primary, 1 secondary.
1428
1203=item $term->cmd_parse ($octets) 1429=item $term->cmd_parse ($octets)
1204 1430
1205Similar to C<scr_add_lines>, but the argument must be in the 1431Similar to C<scr_add_lines>, but the argument must be in the
1206locale-specific encoding of the terminal and can contain command sequences 1432locale-specific encoding of the terminal and can contain command sequences
1207(escape codes) that will be interpreted. 1433(escape codes) that will be interpreted.
1217Replaces the event mask of the pty watcher by the given event mask. Can 1443Replaces the event mask of the pty watcher by the given event mask. Can
1218be used to suppress input and output handling to the pty/tty. See the 1444be used to suppress input and output handling to the pty/tty. See the
1219description of C<< urxvt::timer->events >>. Make sure to always restore 1445description of C<< urxvt::timer->events >>. Make sure to always restore
1220the previous value. 1446the previous value.
1221 1447
1448=item $fd = $term->pty_fd
1449
1450Returns the master file descriptor for the pty in use, or C<-1> if no pty
1451is used.
1452
1222=item $windowid = $term->parent 1453=item $windowid = $term->parent
1223 1454
1224Return the window id of the toplevel window. 1455Return the window id of the toplevel window.
1225 1456
1226=item $windowid = $term->vt 1457=item $windowid = $term->vt
1232Adds the specified events to the vt event mask. Useful e.g. when you want 1463Adds the specified events to the vt event mask. Useful e.g. when you want
1233to receive pointer events all the times: 1464to receive pointer events all the times:
1234 1465
1235 $term->vt_emask_add (urxvt::PointerMotionMask); 1466 $term->vt_emask_add (urxvt::PointerMotionMask);
1236 1467
1468=item $term->focus_in
1469
1470=item $term->focus_out
1471
1472=item $term->key_press ($state, $keycode[, $time])
1473
1474=item $term->key_release ($state, $keycode[, $time])
1475
1476Deliver various fake events to to terminal.
1477
1237=item $window_width = $term->width 1478=item $window_width = $term->width
1238 1479
1239=item $window_height = $term->height 1480=item $window_height = $term->height
1240 1481
1241=item $font_width = $term->fwidth 1482=item $font_width = $term->fwidth
1271=item $env = $term->env 1512=item $env = $term->env
1272 1513
1273Returns a copy of the environment in effect for the terminal as a hashref 1514Returns a copy of the environment in effect for the terminal as a hashref
1274similar to C<\%ENV>. 1515similar to C<\%ENV>.
1275 1516
1517=item @envv = $term->envv
1518
1519Returns the environment as array of strings of the form C<VAR=VALUE>.
1520
1521=item @argv = $term->argv
1522
1523Return the argument vector as this terminal, similar to @ARGV, but
1524includes the program name as first element.
1525
1276=cut 1526=cut
1277 1527
1278sub env { 1528sub env {
1279 if (my $env = $_[0]->_env) {
1280 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env } 1529 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1281 } else {
1282 +{ %ENV }
1283 }
1284} 1530}
1285 1531
1286=item $modifiermask = $term->ModLevel3Mask 1532=item $modifiermask = $term->ModLevel3Mask
1287 1533
1288=item $modifiermask = $term->ModMetaMask 1534=item $modifiermask = $term->ModMetaMask
1289 1535
1290=item $modifiermask = $term->ModNumLockMask 1536=item $modifiermask = $term->ModNumLockMask
1291 1537
1292Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1538Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1293AltGr), the meta key (often Alt) and the num lock key, if applicable. 1539AltGr), the meta key (often Alt) and the num lock key, if applicable.
1540
1541=item $screen = $term->current_screen
1542
1543Returns the currently displayed screen (0 primary, 1 secondary).
1544
1545=item $cursor_is_hidden = $term->hidden_cursor
1546
1547Returns whether the cursor is currently hidden or not.
1294 1548
1295=item $view_start = $term->view_start ([$newvalue]) 1549=item $view_start = $term->view_start ([$newvalue])
1296 1550
1297Returns the row number of the topmost displayed line. Maximum value is 1551Returns the row number of the topmost displayed line. Maximum value is
1298C<0>, which displays the normal terminal contents. Lower values scroll 1552C<0>, which displays the normal terminal contents. Lower values scroll
1318line, starting at column C<$start_col> (default C<0>), which is useful 1572line, starting at column C<$start_col> (default C<0>), which is useful
1319to replace only parts of a line. The font index in the rendition will 1573to replace only parts of a line. The font index in the rendition will
1320automatically be updated. 1574automatically be updated.
1321 1575
1322C<$text> is in a special encoding: tabs and wide characters that use more 1576C<$text> is in a special encoding: tabs and wide characters that use more
1323than one cell when displayed are padded with urxvt::NOCHAR characters 1577than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1324(C<chr 65535>). Characters with combining characters and other characters 1578characters. Characters with combining characters and other characters that
1325that do not fit into the normal tetx encoding will be replaced with 1579do not fit into the normal tetx encoding will be replaced with characters
1326characters in the private use area. 1580in the private use area.
1327 1581
1328You have to obey this encoding when changing text. The advantage is 1582You have to obey this encoding when changing text. The advantage is
1329that C<substr> and similar functions work on screen cells and not on 1583that C<substr> and similar functions work on screen cells and not on
1330characters. 1584characters.
1331 1585
1475where one character corresponds to one screen cell. See 1729where one character corresponds to one screen cell. See
1476C<< $term->ROW_t >> for details. 1730C<< $term->ROW_t >> for details.
1477 1731
1478=item $string = $term->special_decode $text 1732=item $string = $term->special_decode $text
1479 1733
1480Converts rxvt-unicodes text reprsentation into a perl string. See 1734Converts rxvt-unicodes text representation into a perl string. See
1481C<< $term->ROW_t >> for details. 1735C<< $term->ROW_t >> for details.
1482 1736
1483=item $success = $term->grab_button ($button, $modifiermask) 1737=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1484 1738
1739=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1740
1485Registers a synchronous button grab. See the XGrabButton manpage. 1741Register/unregister a synchronous button grab. See the XGrabButton
1742manpage.
1486 1743
1487=item $success = $term->grab ($eventtime[, $sync]) 1744=item $success = $term->grab ($eventtime[, $sync])
1488 1745
1489Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1746Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1490synchronous (C<$sync> is true). Also remembers the grab timestampe. 1747synchronous (C<$sync> is true). Also remembers the grab timestamp.
1491 1748
1492=item $term->allow_events_async 1749=item $term->allow_events_async
1493 1750
1494Calls XAllowEvents with AsyncBoth for the most recent grab. 1751Calls XAllowEvents with AsyncBoth for the most recent grab.
1495 1752
1505=item $term->ungrab 1762=item $term->ungrab
1506 1763
1507Calls XUngrab for the most recent grab. Is called automatically on 1764Calls XUngrab for the most recent grab. Is called automatically on
1508evaluation errors, as it is better to lose the grab in the error case as 1765evaluation errors, as it is better to lose the grab in the error case as
1509the session. 1766the session.
1767
1768=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1769
1770=item $atom_name = $term->XGetAtomName ($atom)
1771
1772=item @atoms = $term->XListProperties ($window)
1773
1774=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1775
1776=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1777
1778=item $term->XDeleteProperty ($window, $property)
1779
1780=item $window = $term->DefaultRootWindow
1781
1782=item $term->XReparentWindow ($window, $parent, [$x, $y])
1783
1784=item $term->XMapWindow ($window)
1785
1786=item $term->XUnmapWindow ($window)
1787
1788=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1789
1790=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1791
1792=item $term->XChangeInput ($window, $add_events[, $del_events])
1793
1794Various X or X-related functions. The C<$term> object only serves as
1795the source of the display, otherwise those functions map more-or-less
1796directory onto the X functions of the same name.
1510 1797
1511=back 1798=back
1512 1799
1513=cut 1800=cut
1514 1801
1578 my ($self, $text, $cb) = @_; 1865 my ($self, $text, $cb) = @_;
1579 1866
1580 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1867 $self->add_item ({ type => "button", text => $text, activate => $cb});
1581} 1868}
1582 1869
1583=item $popup->add_toggle ($text, $cb, $initial_value) 1870=item $popup->add_toggle ($text, $initial_value, $cb)
1584 1871
1585Adds a toggle/checkbox item to the popup. Teh callback gets called 1872Adds a toggle/checkbox item to the popup. The callback gets called
1586whenever it gets toggled, with a boolean indicating its value as its first 1873whenever it gets toggled, with a boolean indicating its new value as its
1587argument. 1874first argument.
1588 1875
1589=cut 1876=cut
1590 1877
1591sub add_toggle { 1878sub add_toggle {
1592 my ($self, $text, $cb, $value) = @_; 1879 my ($self, $text, $value, $cb) = @_;
1593 1880
1594 my $item; $item = { 1881 my $item; $item = {
1595 type => "button", 1882 type => "button",
1596 text => " $text", 1883 text => " $text",
1597 value => $value, 1884 value => $value,
1634 delete $self->{term}{_destroy}{$self}; 1921 delete $self->{term}{_destroy}{$self};
1635 $self->{term}->ungrab; 1922 $self->{term}->ungrab;
1636} 1923}
1637 1924
1638=back 1925=back
1926
1927=cut
1928
1929package urxvt::watcher;
1930
1931@urxvt::timer::ISA = __PACKAGE__;
1932@urxvt::iow::ISA = __PACKAGE__;
1933@urxvt::pw::ISA = __PACKAGE__;
1934@urxvt::iw::ISA = __PACKAGE__;
1639 1935
1640=head2 The C<urxvt::timer> Class 1936=head2 The C<urxvt::timer> Class
1641 1937
1642This class implements timer watchers/events. Time is represented as a 1938This class implements timer watchers/events. Time is represented as a
1643fractional number of seconds since the epoch. Example: 1939fractional number of seconds since the epoch. Example:
1723Set the callback to be called when io events are triggered. C<$reventmask> 2019Set the callback to be called when io events are triggered. C<$reventmask>
1724is a bitset as described in the C<events> method. 2020is a bitset as described in the C<events> method.
1725 2021
1726=item $iow = $iow->fd ($fd) 2022=item $iow = $iow->fd ($fd)
1727 2023
1728Set the filedescriptor (not handle) to watch. 2024Set the file descriptor (not handle) to watch.
1729 2025
1730=item $iow = $iow->events ($eventmask) 2026=item $iow = $iow->events ($eventmask)
1731 2027
1732Set the event mask to watch. The only allowed values are 2028Set the event mask to watch. The only allowed values are
1733C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed 2029C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1737 2033
1738Start watching for requested events on the given handle. 2034Start watching for requested events on the given handle.
1739 2035
1740=item $iow = $iow->stop 2036=item $iow = $iow->stop
1741 2037
1742Stop watching for events on the given filehandle. 2038Stop watching for events on the given file handle.
2039
2040=back
2041
2042=head2 The C<urxvt::iw> Class
2043
2044This class implements idle watchers, that get called automatically when
2045the process is idle. They should return as fast as possible, after doing
2046some useful work.
2047
2048=over 4
2049
2050=item $iw = new urxvt::iw
2051
2052Create a new idle watcher object in stopped state.
2053
2054=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2055
2056Set the callback to be called when the watcher triggers.
2057
2058=item $timer = $timer->start
2059
2060Start the watcher.
2061
2062=item $timer = $timer->stop
2063
2064Stop the watcher.
2065
2066=back
2067
2068=head2 The C<urxvt::pw> Class
2069
2070This class implements process watchers. They create an event whenever a
2071process exits, after which they stop automatically.
2072
2073 my $pid = fork;
2074 ...
2075 $term->{pw} = urxvt::pw
2076 ->new
2077 ->start ($pid)
2078 ->cb (sub {
2079 my ($pw, $exit_status) = @_;
2080 ...
2081 });
2082
2083=over 4
2084
2085=item $pw = new urxvt::pw
2086
2087Create a new process watcher in stopped state.
2088
2089=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2090
2091Set the callback to be called when the timer triggers.
2092
2093=item $pw = $timer->start ($pid)
2094
2095Tells the watcher to start watching for process C<$pid>.
2096
2097=item $pw = $pw->stop
2098
2099Stop the watcher.
1743 2100
1744=back 2101=back
1745 2102
1746=head1 ENVIRONMENT 2103=head1 ENVIRONMENT
1747 2104
1756 2113
1757=item >= 3 - script loading and management 2114=item >= 3 - script loading and management
1758 2115
1759=item >=10 - all called hooks 2116=item >=10 - all called hooks
1760 2117
1761=item >=11 - hook reutrn values 2118=item >=11 - hook return values
1762 2119
1763=back 2120=back
1764 2121
1765=head1 AUTHOR 2122=head1 AUTHOR
1766 2123

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