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Revision 1.109 by root, Thu Jan 19 16:07:09 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 onto 122Other extensions can extend this popup menu by pushing a code reference
95C<@urxvt::ext::selection_popup::hook>, that is called whenever the popup is displayed. 123onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
124popup is being displayed.
96 125
97It's sole argument is the popup menu, which can be modified. The selection 126It's sole argument is the popup menu, which can be modified. The selection
98is in C<$_>, which can be used to decide wether to add something or not. 127is in C<$_>, which can be used to decide whether to add something or not.
99It should either return nothing or a string and a code reference. The 128It should either return nothing or a string and a code reference. The
100string will be used as button text and the code reference will be called 129string will be used as button text and the code reference will be called
101when the button gets activated and should transform C<$_>. 130when the button gets activated and should transform C<$_>.
102 131
103The 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
104the selection to C<b>s, but only if the selection currently contains any 133the selection to C<b>s, but only if the selection currently contains any
105C<a>s: 134C<a>s:
106 135
107 push urxvt::ext::selection_popup::hook, sub { 136 push @{ $self->{term}{selection_popup_hook} }, sub {
108 /a/ ? ("a to be" => sub { s/a/b/g } 137 /a/ ? ("a to be" => sub { s/a/b/g }
109 : () 138 : ()
110 }; 139 };
111
112Don't run it in a hook, otherwise the menu will grow and grow. Instead put
113it at the toplevel of your extension.
114 140
115=item searchable-scrollback<hotkey> (enabled by default) 141=item searchable-scrollback<hotkey> (enabled by default)
116 142
117Adds regex search functionality to the scrollback buffer, triggered 143Adds regex search functionality to the scrollback buffer, triggered
118by a hotkey (default: C<M-s>). While in search mode, normal terminal 144by a hotkey (default: C<M-s>). While in search mode, normal terminal
125bottom. 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
126was 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
127additionally stores the first match in the current line into the primary 153additionally stores the first match in the current line into the primary
128selection. 154selection.
129 155
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
130=item selection-autotransform 187=item selection-autotransform
131 188
132This selection allows you to do automatic transforms on a selection 189This selection allows you to do automatic transforms on a selection
133whenever a selection is made. 190whenever a selection is made.
134 191
159 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/
160 217
161The 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
162every error message as a selection pattern, and the second line transforms 219every error message as a selection pattern, and the second line transforms
163the 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.
164 244
165=item mark-urls 245=item mark-urls
166 246
167Uses 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
168make them clickable. When middle-clicked, the program specified in the 248make them clickable. When middle-clicked, the program specified in the
169resource C<urlLauncher> (default C<x-www-browser>) will be started with 249resource C<urlLauncher> (default C<x-www-browser>) will be started with
170the URL as first argument. 250the URL as first argument.
171 251
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
172=item automove-background 283=item automove-background
173 284
174This is basically a one-line extension that dynamically changes the background pixmap offset 285This is basically a very small extension that dynamically changes the
175to the window position, in effect creating the same effect as pseudo transparency with 286background pixmap offset to the window position, in effect creating the
176a 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:
177 289
178 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background 290 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
179 291
180=item block-graphics-to-ascii 292=item block-graphics-to-ascii
181 293
182A 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
183by replacing all line-drawing characters (U+2500 .. U+259F) by a 295by replacing all line-drawing characters (U+2500 .. U+259F) by a
184similar-looking ascii character. 296similar-looking ascii character.
185 297
186=item digital-clock 298=item digital-clock
187 299
188Displays a digital clock using the built-in overlay. 300Displays a digital clock using the built-in overlay.
189 301
190=item example-refresh-hooks 302=item remote-clipboard
191 303
192Displays a very simple digital clock in the upper right corner of the 304Somewhat of a misnomer, this extension adds two menu entries to the
193window. Illustrates overwriting the refresh callbacks to create your own 305selection popup that allows one ti run external commands to store the
194overlays 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'
195 321
196=item selection-pastebin 322=item selection-pastebin
197 323
198This is a little rarely useful extension that Uploads the selection as 324This is a little rarely useful extension that Uploads the selection as
199textfile to a remote site (or does other things). (The implementation is 325textfile to a remote site (or does other things). (The implementation is
219After 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
220in the C<selection-pastebin-url> resource (again, the % is the placeholder 346in the C<selection-pastebin-url> resource (again, the % is the placeholder
221for the filename): 347for the filename):
222 348
223 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.
224 356
225=back 357=back
226 358
227=head1 API DOCUMENTATION 359=head1 API DOCUMENTATION
228 360
262 394
263=back 395=back
264 396
265=head2 Extension Objects 397=head2 Extension Objects
266 398
267Very 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
268for 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
269hooks. 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
270about other extensions, with the exception of methods and members that 402about other extensions, with the exception of methods and members that
271begin with an underscore character C<_>: these are reserved for internal 403begin with an underscore character C<_>: these are reserved for internal
272use. 404use.
298=head2 Hooks 430=head2 Hooks
299 431
300The following subroutines can be declared in extension files, and will be 432The following subroutines can be declared in extension files, and will be
301called whenever the relevant event happens. 433called whenever the relevant event happens.
302 434
303The 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
304the in the C<Extension Objects> section. 436the in the C<Extension Objects> section.
305 437
306B<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
307event 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
308skipped, and the relevant action might not be carried out by the C++ code. 440relevant action might not be carried out by the C++ code.
309 441
310I<< When in doubt, return a false value (preferably C<()>). >> 442I<< When in doubt, return a false value (preferably C<()>). >>
311 443
312=over 4 444=over 4
313 445
314=item on_init $term 446=item on_init $term
315 447
316Called after a new terminal object has been initialized, but before 448Called after a new terminal object has been initialized, but before
317windows 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
318call or deliver senseless data, as terminal size and other characteristics 450call or deliver senseless data, as terminal size and other characteristics
319have not yet been determined. You can safely query and change resources, 451have not yet been determined. You can safely query and change resources
320though. 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).
321 464
322=item on_reset $term 465=item on_reset $term
323 466
324Called 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
325control 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
326variables. 469variables.
327 470
328=item on_start $term
329
330Called at the very end of initialisation of a new terminal, just before
331returning to the mainloop.
332
333=item on_child_start $term, $pid 471=item on_child_start $term, $pid
334 472
335Called just after the child process has been C<fork>ed. 473Called just after the child process has been C<fork>ed.
336 474
337=item on_child_exit $term, $status 475=item on_child_exit $term, $status
352 490
353Called whenever a selection has been copied, but before the selection is 491Called whenever a selection has been copied, but before the selection is
354requested from the server. The selection text can be queried and changed 492requested from the server. The selection text can be queried and changed
355by calling C<< $term->selection >>. 493by calling C<< $term->selection >>.
356 494
357Returning a true value aborts selection grabbing. It will still be hilighted. 495Returning a true value aborts selection grabbing. It will still be highlighted.
358 496
359=item on_sel_extend $term 497=item on_sel_extend $term
360 498
361Called 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
362click) and is either supposed to return false (normal operation), or 500click) and is either supposed to return false (normal operation), or
363should 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
364processing. This can happen multiple times, as long as the callback 502processing. This can happen multiple times, as long as the callback
365returns 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
366supposed to enlarge the selection more and more, if possible. 504supposed to enlarge the selection more and more, if possible.
367 505
368See the F<selection> example extension. 506See the F<selection> example extension.
369 507
370=item on_view_change $term, $offset 508=item on_view_change $term, $offset
371 509
372Called whenever the view offset changes, i..e the user or program 510Called whenever the view offset changes, i.e. the user or program
373scrolls. Offset C<0> means display the normal terminal, positive values 511scrolls. Offset C<0> means display the normal terminal, positive values
374show this many lines of scrollback. 512show this many lines of scrollback.
375 513
376=item on_scroll_back $term, $lines, $saved 514=item on_scroll_back $term, $lines, $saved
377 515
381 519
382It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 520It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
383$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
384number of lines that will be in the scrollback buffer. 522number of lines that will be in the scrollback buffer.
385 523
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
386=item on_osc_seq $term, $string 534=item on_osc_seq_perl $term, $string
387 535
388Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 536Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
389operating system command) is processed. Cursor position and other state 537operating system command) is processed. Cursor position and other state
390information is up-to-date when this happens. For interoperability, the 538information is up-to-date when this happens. For interoperability, the
391string should start with the extension name and a colon, to distinguish 539string should start with the extension name and a colon, to distinguish
392it 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
393future. 541future.
394 542
395Be 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,
396as 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
397other users on the same system etc.). 545other users on the same system etc.).
398 546
399=item on_add_lines $term, $string 547=item on_add_lines $term, $string
400 548
401Called 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
432 580
433=item on_refresh_end $term 581=item on_refresh_end $term
434 582
435Called just after the screen gets redrawn. See C<on_refresh_begin>. 583Called just after the screen gets redrawn. See C<on_refresh_begin>.
436 584
437=item on_keyboard_command $term, $string 585=item on_user_command $term, $string
438 586
439Called whenever the user presses a key combination that has a 587Called whenever a user-configured event is being activated (e.g. via
440C<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>
441resource 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.
442 599
443=item on_x_event $term, $event 600=item on_x_event $term, $event
444 601
445Called 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
446windows). Should only be used as a last resort. Most event structure 603windows). Should only be used as a last resort. Most event structure
447members are not passed. 604members are not passed.
448 605
606=item on_root_event $term, $event
607
608Like C<on_x_event>, but is called for events on the root window.
609
449=item on_focus_in $term 610=item on_focus_in $term
450 611
451Called whenever the window gets the keyboard focus, before rxvt-unicode 612Called whenever the window gets the keyboard focus, before rxvt-unicode
452does focus in processing. 613does focus in processing.
453 614
454=item on_focus_out $term 615=item on_focus_out $term
455 616
456Called wheneever the window loses keyboard focus, before rxvt-unicode does 617Called whenever the window loses keyboard focus, before rxvt-unicode does
457focus out processing. 618focus out processing.
458 619
459=item on_configure_notify $term, $event 620=item on_configure_notify $term, $event
621
622=item on_property_notify $term, $event
460 623
461=item on_key_press $term, $event, $keysym, $octets 624=item on_key_press $term, $event, $keysym, $octets
462 625
463=item on_key_release $term, $event, $keysym 626=item on_key_release $term, $event, $keysym
464 627
474 637
475Called whenever the corresponding X event is received for the terminal If 638Called whenever the corresponding X event is received for the terminal If
476the 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.
477 640
478The 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
479manpage), 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
480and column under the mouse cursor. 643(real, not screen-based) row and column under the mouse cursor.
481 644
482C<on_key_press> additionally receives the string rxvt-unicode would 645C<on_key_press> additionally receives the string rxvt-unicode would
483output, if any, in locale-specific encoding. 646output, if any, in locale-specific encoding.
484 647
485subwindow. 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).
486 658
487=back 659=back
488 660
489=cut 661=cut
490 662
496use Scalar::Util (); 668use Scalar::Util ();
497use List::Util (); 669use List::Util ();
498 670
499our $VERSION = 1; 671our $VERSION = 1;
500our $TERM; 672our $TERM;
673our @TERM_INIT;
674our @TERM_EXT;
501our @HOOKNAME; 675our @HOOKNAME;
502our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 676our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
503our %OPTION; 677our %OPTION;
504 678
505our $LIBDIR; 679our $LIBDIR;
506our $RESNAME; 680our $RESNAME;
507our $RESCLASS; 681our $RESCLASS;
508our $RXVTNAME; 682our $RXVTNAME;
509 683
684our $NOCHAR = chr 0xffff;
685
510=head2 Variables in the C<urxvt> Package 686=head2 Variables in the C<urxvt> Package
511 687
512=over 4 688=over 4
513 689
514=item $urxvt::LIBDIR 690=item $urxvt::LIBDIR
526 702
527=item $urxvt::TERM 703=item $urxvt::TERM
528 704
529The current terminal. This variable stores the current C<urxvt::term> 705The current terminal. This variable stores the current C<urxvt::term>
530object, 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>.
531 723
532=back 724=back
533 725
534=head2 Functions in the C<urxvt> Package 726=head2 Functions in the C<urxvt> Package
535 727
549 741
550Using 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
551correct place, e.g. on stderr of the connecting urxvtc client. 743correct place, e.g. on stderr of the connecting urxvtc client.
552 744
553Messages 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).
554 753
555=item $time = urxvt::NOW 754=item $time = urxvt::NOW
556 755
557Returns the "current time" (as per the event loop). 756Returns the "current time" (as per the event loop).
558 757
616Return the foreground/background colour index, respectively. 815Return the foreground/background colour index, respectively.
617 816
618=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour 817=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
619 818
620=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
621 822
622Replace the foreground/background colour in the rendition mask with the 823Replace the foreground/background colour in the rendition mask with the
623specified one. 824specified one.
624 825
625=item $value = urxvt::GET_CUSTOM $rend 826=item $value = urxvt::GET_CUSTOM $rend
644 unless $msg =~ /\n$/; 845 unless $msg =~ /\n$/;
645 urxvt::warn ($msg); 846 urxvt::warn ($msg);
646 }; 847 };
647} 848}
648 849
850no warnings 'utf8';
851
649my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 852my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
650 853
651sub verbose { 854sub verbose {
652 my ($level, $msg) = @_; 855 my ($level, $msg) = @_;
653 warn "$msg\n" if $level <= $verbosity; 856 warn "$msg\n" if $level <= $verbosity;
656my %extension_pkg; 859my %extension_pkg;
657 860
658# load a single script into its own package, once only 861# load a single script into its own package, once only
659sub extension_package($) { 862sub extension_package($) {
660 my ($path) = @_; 863 my ($path) = @_;
661
662 no strict 'refs';
663 864
664 $extension_pkg{$path} ||= do { 865 $extension_pkg{$path} ||= do {
665 $path =~ /([^\/\\]+)$/; 866 $path =~ /([^\/\\]+)$/;
666 my $pkg = $1; 867 my $pkg = $1;
667 $pkg =~ s/[^[:word:]]/_/g; 868 $pkg =~ s/[^[:word:]]/_/g;
670 verbose 3, "loading extension '$path' into package '$pkg'"; 871 verbose 3, "loading extension '$path' into package '$pkg'";
671 872
672 open my $fh, "<:raw", $path 873 open my $fh, "<:raw", $path
673 or die "$path: $!"; 874 or die "$path: $!";
674 875
675 @{"$pkg\::ISA"} = urxvt::term::extension::;
676
677 my $source = 876 my $source =
678 "package $pkg; use strict; use utf8;\n" 877 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
679 . "#line 1 \"$path\"\n{\n" 878 . "#line 1 \"$path\"\n{\n"
680 . (do { local $/; <$fh> }) 879 . (do { local $/; <$fh> })
681 . "\n};\n1"; 880 . "\n};\n1";
682 881
683 eval $source 882 eval $source
697 if ($htype == 0) { # INIT 896 if ($htype == 0) { # INIT
698 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 897 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
699 898
700 my %ext_arg; 899 my %ext_arg;
701 900
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
702 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 910 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
703 if ($_ eq "default") { 911 if ($_ eq "default") {
704 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 912 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
705 } elsif (/^-(.*)$/) { 913 } elsif (/^-(.*)$/) {
706 delete $ext_arg{$1}; 914 delete $ext_arg{$1};
707 } elsif (/^([^<]+)<(.*)>$/) { 915 } elsif (/^([^<]+)<(.*)>$/) {
708 push @{ $ext_arg{$1} }, $2; 916 push @{ $ext_arg{$1} }, $2;
709 } else { 917 } else {
710 $ext_arg{$_} ||= []; 918 $ext_arg{$_} ||= [];
711 } 919 }
712 } 920 }
713 921
714 while (my ($ext, $argv) = each %ext_arg) { 922 for my $ext (sort keys %ext_arg) {
715 my @files = grep -f $_, map "$_/$ext", @dirs; 923 my @files = grep -f $_, map "$_/$ext", @dirs;
716 924
717 if (@files) { 925 if (@files) {
718 $TERM->register_package (extension_package $files[0], $argv); 926 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
719 } else { 927 } else {
720 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";
721 } 929 }
722 } 930 }
723 931
729 937
730 if (my $cb = $TERM->{_hook}[$htype]) { 938 if (my $cb = $TERM->{_hook}[$htype]) {
731 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 939 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
732 if $verbosity >= 10; 940 if $verbosity >= 10;
733 941
734 keys %$cb; 942 for my $pkg (keys %$cb) {
735
736 while (my ($pkg, $cb) = each %$cb) {
737 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 943 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
738 and last; 944 $retval ||= $retval_;
739 945
740 if ($@) { 946 if ($@) {
741 $TERM->ungrab; # better to lose the grab than the session 947 $TERM->ungrab; # better to lose the grab than the session
742 warn $@; 948 warn $@;
743 } 949 }
754 # clear package 960 # clear package
755 %$TERM = (); 961 %$TERM = ();
756 } 962 }
757 963
758 $retval 964 $retval
965}
966
967sub SET_COLOR($$$) {
968 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
759} 969}
760 970
761# urxvt::term::extension 971# urxvt::term::extension
762 972
763package urxvt::term::extension; 973package urxvt::term::extension;
902# find on_xxx subs in the package and register them 1112# find on_xxx subs in the package and register them
903# as hooks 1113# as hooks
904sub register_package { 1114sub register_package {
905 my ($self, $pkg, $argv) = @_; 1115 my ($self, $pkg, $argv) = @_;
906 1116
1117 no strict 'refs';
1118
1119 urxvt::verbose 6, "register package $pkg to $self";
1120
1121 @{"$pkg\::ISA"} = urxvt::term::extension::;
1122
907 my $proxy = bless { 1123 my $proxy = bless {
908 _pkg => $pkg, 1124 _pkg => $pkg,
909 argv => $argv, 1125 argv => $argv,
910 }, $pkg; 1126 }, $pkg;
911 Scalar::Util::weaken ($proxy->{term} = $self); 1127 Scalar::Util::weaken ($proxy->{term} = $self);
926hash which defines the environment of the new terminal. 1142hash which defines the environment of the new terminal.
927 1143
928Croaks (and probably outputs an error message) if the new instance 1144Croaks (and probably outputs an error message) if the new instance
929couldn't be created. Returns C<undef> if the new instance didn't 1145couldn't be created. Returns C<undef> if the new instance didn't
930initialise perl, and the terminal object otherwise. The C<init> and 1146initialise perl, and the terminal object otherwise. The C<init> and
931C<start> hooks will be called during this call. 1147C<start> hooks will be called before this call returns, and are free to
1148refer to global data (which is race free).
932 1149
933=cut 1150=cut
934 1151
935sub new { 1152sub new {
936 my ($class, $env, @args) = @_; 1153 my ($class, $env, @args) = @_;
937 1154
1155 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1156 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1157
938 _new ([ map "$_=$env->{$_}", keys %$env ], @args); 1158 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
939} 1159}
940 1160
941=item $term->destroy 1161=item $term->destroy
942 1162
943Destroy the terminal object (close the window, free resources 1163Destroy the terminal object (close the window, free resources
973 1193
974Returns true if the option specified by C<$optval> is enabled, and 1194Returns true if the option specified by C<$optval> is enabled, and
975optionally 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
976C<%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.
977 1197
978Here 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
979source file F</src/optinc.h> to see the actual list: 1199source file F</src/optinc.h> to see the actual list:
980 1200
981 borderLess console cursorBlink cursorUnderline hold iconic insecure 1201 borderLess console cursorBlink cursorUnderline hold iconic insecure
982 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1202 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
983 override-redirect pastableTabs pointerBlank reverseVideo scrollBar 1203 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
1000likely change). 1220likely change).
1001 1221
1002Please note that resource strings will currently only be freed when the 1222Please note that resource strings will currently only be freed when the
1003terminal is destroyed, so changing options frequently will eat memory. 1223terminal is destroyed, so changing options frequently will eat memory.
1004 1224
1005Here 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
1006are 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>
1007to see the actual list: 1227to see the actual list:
1008 1228
1009 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1229 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
1010 borderLess color cursorBlink cursorUnderline cutchars delete_key 1230 borderLess color cursorBlink cursorUnderline cutchars delete_key
1200 1420
1201Normally 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
1202confused by changes in cursor position or scrolling. Its useful inside a 1422confused by changes in cursor position or scrolling. Its useful inside a
1203C<on_add_lines> hook, though. 1423C<on_add_lines> hook, though.
1204 1424
1425=item $term->scr_change_screen ($screen)
1426
1427Switch to given screen - 0 primary, 1 secondary.
1428
1205=item $term->cmd_parse ($octets) 1429=item $term->cmd_parse ($octets)
1206 1430
1207Similar 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
1208locale-specific encoding of the terminal and can contain command sequences 1432locale-specific encoding of the terminal and can contain command sequences
1209(escape codes) that will be interpreted. 1433(escape codes) that will be interpreted.
1219Replaces 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
1220be 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
1221description of C<< urxvt::timer->events >>. Make sure to always restore 1445description of C<< urxvt::timer->events >>. Make sure to always restore
1222the previous value. 1446the previous value.
1223 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
1224=item $windowid = $term->parent 1453=item $windowid = $term->parent
1225 1454
1226Return the window id of the toplevel window. 1455Return the window id of the toplevel window.
1227 1456
1228=item $windowid = $term->vt 1457=item $windowid = $term->vt
1234Adds 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
1235to receive pointer events all the times: 1464to receive pointer events all the times:
1236 1465
1237 $term->vt_emask_add (urxvt::PointerMotionMask); 1466 $term->vt_emask_add (urxvt::PointerMotionMask);
1238 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
1239=item $window_width = $term->width 1478=item $window_width = $term->width
1240 1479
1241=item $window_height = $term->height 1480=item $window_height = $term->height
1242 1481
1243=item $font_width = $term->fwidth 1482=item $font_width = $term->fwidth
1273=item $env = $term->env 1512=item $env = $term->env
1274 1513
1275Returns 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
1276similar to C<\%ENV>. 1515similar to C<\%ENV>.
1277 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
1278=cut 1526=cut
1279 1527
1280sub env { 1528sub env {
1281 if (my $env = $_[0]->_env) {
1282 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env } 1529 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1283 } else {
1284 +{ %ENV }
1285 }
1286} 1530}
1287 1531
1288=item $modifiermask = $term->ModLevel3Mask 1532=item $modifiermask = $term->ModLevel3Mask
1289 1533
1290=item $modifiermask = $term->ModMetaMask 1534=item $modifiermask = $term->ModMetaMask
1291 1535
1292=item $modifiermask = $term->ModNumLockMask 1536=item $modifiermask = $term->ModNumLockMask
1293 1537
1294Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1538Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1295AltGr), 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.
1296 1548
1297=item $view_start = $term->view_start ([$newvalue]) 1549=item $view_start = $term->view_start ([$newvalue])
1298 1550
1299Returns the row number of the topmost displayed line. Maximum value is 1551Returns the row number of the topmost displayed line. Maximum value is
1300C<0>, which displays the normal terminal contents. Lower values scroll 1552C<0>, which displays the normal terminal contents. Lower values scroll
1320line, 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
1321to 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
1322automatically be updated. 1574automatically be updated.
1323 1575
1324C<$text> is in a special encoding: tabs and wide characters that use more 1576C<$text> is in a special encoding: tabs and wide characters that use more
1325than one cell when displayed are padded with urxvt::NOCHAR characters 1577than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1326(C<chr 65535>). Characters with combining characters and other characters 1578characters. Characters with combining characters and other characters that
1327that 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
1328characters in the private use area. 1580in the private use area.
1329 1581
1330You have to obey this encoding when changing text. The advantage is 1582You have to obey this encoding when changing text. The advantage is
1331that 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
1332characters. 1584characters.
1333 1585
1477where one character corresponds to one screen cell. See 1729where one character corresponds to one screen cell. See
1478C<< $term->ROW_t >> for details. 1730C<< $term->ROW_t >> for details.
1479 1731
1480=item $string = $term->special_decode $text 1732=item $string = $term->special_decode $text
1481 1733
1482Converts rxvt-unicodes text reprsentation into a perl string. See 1734Converts rxvt-unicodes text representation into a perl string. See
1483C<< $term->ROW_t >> for details. 1735C<< $term->ROW_t >> for details.
1484 1736
1485=item $success = $term->grab_button ($button, $modifiermask) 1737=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1486 1738
1739=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1740
1487Registers a synchronous button grab. See the XGrabButton manpage. 1741Register/unregister a synchronous button grab. See the XGrabButton
1742manpage.
1488 1743
1489=item $success = $term->grab ($eventtime[, $sync]) 1744=item $success = $term->grab ($eventtime[, $sync])
1490 1745
1491Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1746Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1492synchronous (C<$sync> is true). Also remembers the grab timestampe. 1747synchronous (C<$sync> is true). Also remembers the grab timestamp.
1493 1748
1494=item $term->allow_events_async 1749=item $term->allow_events_async
1495 1750
1496Calls XAllowEvents with AsyncBoth for the most recent grab. 1751Calls XAllowEvents with AsyncBoth for the most recent grab.
1497 1752
1507=item $term->ungrab 1762=item $term->ungrab
1508 1763
1509Calls XUngrab for the most recent grab. Is called automatically on 1764Calls XUngrab for the most recent grab. Is called automatically on
1510evaluation 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
1511the 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.
1512 1797
1513=back 1798=back
1514 1799
1515=cut 1800=cut
1516 1801
1580 my ($self, $text, $cb) = @_; 1865 my ($self, $text, $cb) = @_;
1581 1866
1582 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1867 $self->add_item ({ type => "button", text => $text, activate => $cb});
1583} 1868}
1584 1869
1585=item $popup->add_toggle ($text, $cb, $initial_value) 1870=item $popup->add_toggle ($text, $initial_value, $cb)
1586 1871
1587Adds a toggle/checkbox item to the popup. Teh callback gets called 1872Adds a toggle/checkbox item to the popup. The callback gets called
1588whenever it gets toggled, with a boolean indicating its value as its first 1873whenever it gets toggled, with a boolean indicating its new value as its
1589argument. 1874first argument.
1590 1875
1591=cut 1876=cut
1592 1877
1593sub add_toggle { 1878sub add_toggle {
1594 my ($self, $text, $cb, $value) = @_; 1879 my ($self, $text, $value, $cb) = @_;
1595 1880
1596 my $item; $item = { 1881 my $item; $item = {
1597 type => "button", 1882 type => "button",
1598 text => " $text", 1883 text => " $text",
1599 value => $value, 1884 value => $value,
1636 delete $self->{term}{_destroy}{$self}; 1921 delete $self->{term}{_destroy}{$self};
1637 $self->{term}->ungrab; 1922 $self->{term}->ungrab;
1638} 1923}
1639 1924
1640=back 1925=back
1926
1927=cut
1928
1929package urxvt::watcher;
1930
1931@urxvt::timer::ISA = __PACKAGE__;
1932@urxvt::iow::ISA = __PACKAGE__;
1933@urxvt::pw::ISA = __PACKAGE__;
1934@urxvt::iw::ISA = __PACKAGE__;
1641 1935
1642=head2 The C<urxvt::timer> Class 1936=head2 The C<urxvt::timer> Class
1643 1937
1644This class implements timer watchers/events. Time is represented as a 1938This class implements timer watchers/events. Time is represented as a
1645fractional number of seconds since the epoch. Example: 1939fractional number of seconds since the epoch. Example:
1725Set the callback to be called when io events are triggered. C<$reventmask> 2019Set the callback to be called when io events are triggered. C<$reventmask>
1726is a bitset as described in the C<events> method. 2020is a bitset as described in the C<events> method.
1727 2021
1728=item $iow = $iow->fd ($fd) 2022=item $iow = $iow->fd ($fd)
1729 2023
1730Set the filedescriptor (not handle) to watch. 2024Set the file descriptor (not handle) to watch.
1731 2025
1732=item $iow = $iow->events ($eventmask) 2026=item $iow = $iow->events ($eventmask)
1733 2027
1734Set the event mask to watch. The only allowed values are 2028Set the event mask to watch. The only allowed values are
1735C<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
1739 2033
1740Start watching for requested events on the given handle. 2034Start watching for requested events on the given handle.
1741 2035
1742=item $iow = $iow->stop 2036=item $iow = $iow->stop
1743 2037
1744Stop 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.
1745 2100
1746=back 2101=back
1747 2102
1748=head1 ENVIRONMENT 2103=head1 ENVIRONMENT
1749 2104
1758 2113
1759=item >= 3 - script loading and management 2114=item >= 3 - script loading and management
1760 2115
1761=item >=10 - all called hooks 2116=item >=10 - all called hooks
1762 2117
1763=item >=11 - hook reutrn values 2118=item >=11 - hook return values
1764 2119
1765=back 2120=back
1766 2121
1767=head1 AUTHOR 2122=head1 AUTHOR
1768 2123

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