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Revision 1.73 by root, Tue Jan 10 04:23:39 2006 UTC vs.
Revision 1.145 by root, Thu Aug 10 22:53:20 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
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31=head2 Prepackaged Extensions 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
44Intelligent selection. This extension tries to be more intelligent when 48(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 49when the user extends selections (double-click and further clicks). Right
46urls and complete shell-quoted arguments, which is very convenient, too, 50now, it tries to select words, urls and complete shell-quoted
47if your F<ls> supports C<--quoting-style=shell>. 51arguments, which is very convenient, too, if your F<ls> supports
52C<--quoting-style=shell>.
48 53
49It also offers the following bindable event: 54A double-click usually selects the word under the cursor, further clicks
55will enlarge the selection.
56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the following adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
78
79You can look at the source of the selection extension to see more
80interesting uses, such as parsing a line from beginning to end.
81
82This extension also offers following bindable keyboard commands:
50 83
51=over 4 84=over 4
52 85
53=item rot13 86=item rot13
54 87
61=item option-popup (enabled by default) 94=item option-popup (enabled by default)
62 95
63Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at 96Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64runtime. 97runtime.
65 98
99Other extensions can extend this popup menu by pushing a code reference
100onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
101popup is being displayed.
102
103It's sole argument is the popup menu, which can be modified. It should
104either return nothing or a string, the initial boolean value and a code
105reference. The string will be used as button text and the code reference
106will be called when the toggle changes, with the new boolean value as
107first argument.
108
109The following will add an entry C<myoption> that changes
110C<$self->{myoption}>:
111
112 push @{ $self->{term}{option_popup_hook} }, sub {
113 ("my option" => $myoption, sub { $self->{myoption} = $_[0] })
114 };
115
66=item selection-popup (enabled by default) 116=item selection-popup (enabled by default)
67 117
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection 118Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action. 119text into various other formats/action (such as uri unescaping, perl
120evaluation, web-browser starting etc.), depending on content.
70 121
122Other extensions can extend this popup menu by pushing a code reference
123onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
124popup is being displayed.
125
126It's sole argument is the popup menu, which can be modified. The selection
127is in C<$_>, which can be used to decide whether to add something or not.
128It should either return nothing or a string and a code reference. The
129string will be used as button text and the code reference will be called
130when the button gets activated and should transform C<$_>.
131
132The following will add an entry C<a to b> that transforms all C<a>s in
133the selection to C<b>s, but only if the selection currently contains any
134C<a>s:
135
136 push @{ $self->{term}{selection_popup_hook} }, sub {
137 /a/ ? ("a to be" => sub { s/a/b/g }
138 : ()
139 };
140
71=item searchable-scrollback (enabled by default) 141=item searchable-scrollback<hotkey> (enabled by default)
72 142
73Adds regex search functionality to the scrollback buffer, triggered by a 143Adds regex search functionality to the scrollback buffer, triggered
74hotkey (default: C<M-s>). When in search mode, terminal input/output is 144by a hotkey (default: C<M-s>). While in search mode, normal terminal
75suspended, C</> starts an incremental regex search, C<n> searches further, 145input/output is suspended and a regex is displayed at the bottom of the
76C<p> jumps to the previous match. C<enter> leaves search mode at the 146screen.
77current position and C<escape> returns to the original position.
78 147
79=item digital-clock 148Inputting characters appends them to the regex and continues incremental
149search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
150search upwards/downwards in the scrollback buffer, C<End> jumps to the
151bottom. C<Escape> leaves search mode and returns to the point where search
152was started, while C<Enter> or C<Return> stay at the current position and
153additionally stores the first match in the current line into the primary
154selection.
80 155
81Displays a digital clock using the built-in overlay. 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
187=item selection-autotransform
188
189This selection allows you to do automatic transforms on a selection
190whenever a selection is made.
191
192It works by specifying perl snippets (most useful is a single C<s///>
193operator) that modify C<$_> as resources:
194
195 URxvt.selection-autotransform.0: transform
196 URxvt.selection-autotransform.1: transform
197 ...
198
199For example, the following will transform selections of the form
200C<filename:number>, often seen in compiler messages, into C<vi +$filename
201$word>:
202
203 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
204
205And this example matches the same,but replaces it with vi-commands you can
206paste directly into your (vi :) editor:
207
208 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
209
210Of course, this can be modified to suit your needs and your editor :)
211
212To expand the example above to typical perl error messages ("XXX at
213FILENAME line YYY."), you need a slightly more elaborate solution:
214
215 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
216 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
217
218The first line tells the selection code to treat the unchanging part of
219every error message as a selection pattern, and the second line transforms
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.
82 244
83=item mark-urls 245=item mark-urls
84 246
85Uses per-line display filtering (C<on_line_update>) to underline urls. 247Uses per-line display filtering (C<on_line_update>) to underline urls and
248make them clickable. When middle-clicked, the program specified in the
249resource C<urlLauncher> (default C<x-www-browser>) will be started with
250the URL as first argument.
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
283=item automove-background
284
285This is basically a very small extension that dynamically changes the
286background pixmap offset to the window position, in effect creating the
287same effect as pseudo transparency with a custom pixmap. No scaling is
288supported in this mode. Example:
289
290 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
86 291
87=item block-graphics-to-ascii 292=item block-graphics-to-ascii
88 293
89A 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
90by replacing all line-drawing characters (U+2500 .. U+259F) by a 295by replacing all line-drawing characters (U+2500 .. U+259F) by a
91similar-looking ascii character. 296similar-looking ascii character.
297
298=item digital-clock
299
300Displays a digital clock using the built-in overlay.
301
302=item remote-clipboard
303
304Somewhat of a misnomer, this extension adds two menu entries to the
305selection popup that allows one ti run external commands to store the
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'
321
322=item selection-pastebin
323
324This is a little rarely useful extension that Uploads the selection as
325textfile to a remote site (or does other things). (The implementation is
326not currently secure for use in a multiuser environment as it writes to
327F</tmp> directly.).
328
329It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
330i.e.
331
332 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
333
334Pressing this combination runs a command with C<%> replaced by the name of
335the textfile. This command can be set via a resource:
336
337 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
338
339And the default is likely not useful to anybody but the few people around
340here :)
341
342The name of the textfile is the hex encoded md5 sum of the selection, so
343the same content should lead to the same filename.
344
345After a successful upload the selection will be replaced by the text given
346in the C<selection-pastebin-url> resource (again, the % is the placeholder
347for the filename):
348
349 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
92 350
93=item example-refresh-hooks 351=item example-refresh-hooks
94 352
95Displays a very simple digital clock in the upper right corner of the 353Displays a very simple digital clock in the upper right corner of the
96window. Illustrates overwriting the refresh callbacks to create your own 354window. Illustrates overwriting the refresh callbacks to create your own
97overlays or changes. 355overlays or changes.
98 356
99=back 357=back
358
359=head1 API DOCUMENTATION
100 360
101=head2 General API Considerations 361=head2 General API Considerations
102 362
103All objects (such as terminals, time watchers etc.) are typical 363All objects (such as terminals, time watchers etc.) are typical
104reference-to-hash objects. The hash can be used to store anything you 364reference-to-hash objects. The hash can be used to store anything you
117=over 4 377=over 4
118 378
119=item $text 379=item $text
120 380
121Rxvt-unicodes special way of encoding text, where one "unicode" character 381Rxvt-unicodes special way of encoding text, where one "unicode" character
122always represents one screen cell. See L<row_t> for a discussion of this format. 382always represents one screen cell. See L<ROW_t> for a discussion of this format.
123 383
124=item $string 384=item $string
125 385
126A perl text string, with an emphasis on I<text>. It can store all unicode 386A perl text string, with an emphasis on I<text>. It can store all unicode
127characters and is to be distinguished with text encoded in a specific 387characters and is to be distinguished with text encoded in a specific
134 394
135=back 395=back
136 396
137=head2 Extension Objects 397=head2 Extension Objects
138 398
139Very perl extension is a perl class. A separate perl object is created 399Every perl extension is a perl class. A separate perl object is created
140for each terminal and each extension and passed as the first parameter to 400for each terminal, and each terminal has its own set of extenion objects,
141hooks. So extensions can use their C<$self> object without having to think 401which are passed as the first parameter to hooks. So extensions can use
142about other extensions, with the exception of methods and members that 402their C<$self> object without having to think about clashes with other
403extensions or other terminals, with the exception of methods and members
143begin with an underscore character C<_>: these are reserved for internal 404that begin with an underscore character C<_>: these are reserved for
144use. 405internal use.
145 406
146Although it isn't a C<urxvt::term> object, you can call all methods of the 407Although it isn't a C<urxvt::term> object, you can call all methods of the
147C<urxvt::term> class on this object. 408C<urxvt::term> class on this object.
148 409
149It has the following methods and data members: 410It has the following methods and data members:
170=head2 Hooks 431=head2 Hooks
171 432
172The following subroutines can be declared in extension files, and will be 433The following subroutines can be declared in extension files, and will be
173called whenever the relevant event happens. 434called whenever the relevant event happens.
174 435
175The first argument passed to them is an extension oject as described in 436The first argument passed to them is an extension object as described in
176the in the C<Extension Objects> section. 437the in the C<Extension Objects> section.
177 438
178B<All> of these hooks must return a boolean value. If it is true, then the 439B<All> of these hooks must return a boolean value. If any of the called
179event counts as being I<consumed>, and the invocation of other hooks is 440hooks returns true, then the event counts as being I<consumed>, and the
180skipped, and the relevant action might not be carried out by the C++ code. 441relevant action might not be carried out by the C++ code.
181 442
182I<< When in doubt, return a false value (preferably C<()>). >> 443I<< When in doubt, return a false value (preferably C<()>). >>
183 444
184=over 4 445=over 4
185 446
186=item on_init $term 447=item on_init $term
187 448
188Called after a new terminal object has been initialized, but before 449Called after a new terminal object has been initialized, but before
189windows are created or the command gets run. Most methods are unsafe to 450windows are created or the command gets run. Most methods are unsafe to
190call or deliver senseless data, as terminal size and other characteristics 451call or deliver senseless data, as terminal size and other characteristics
191have not yet been determined. You can safely query and change resources, 452have not yet been determined. You can safely query and change resources
192though. 453and options, though. For many purposes the C<on_start> hook is a better
454place.
455
456=item on_start $term
457
458Called at the very end of initialisation of a new terminal, just before
459trying to map (display) the toplevel and returning to the main loop.
460
461=item on_destroy $term
462
463Called whenever something tries to destroy terminal, when the terminal is
464still fully functional (not for long, though).
193 465
194=item on_reset $term 466=item on_reset $term
195 467
196Called after the screen is "reset" for any reason, such as resizing or 468Called after the screen is "reset" for any reason, such as resizing or
197control sequences. Here is where you can react on changes to size-related 469control sequences. Here is where you can react on changes to size-related
198variables. 470variables.
199 471
200=item on_start $term 472=item on_child_start $term, $pid
201 473
202Called at the very end of initialisation of a new terminal, just before 474Called just after the child process has been C<fork>ed.
203returning to the mainloop. 475
476=item on_child_exit $term, $status
477
478Called just after the child process has exited. C<$status> is the status
479from C<waitpid>.
204 480
205=item on_sel_make $term, $eventtime 481=item on_sel_make $term, $eventtime
206 482
207Called whenever a selection has been made by the user, but before the 483Called whenever a selection has been made by the user, but before the
208selection text is copied, so changes to the beginning, end or type of the 484selection text is copied, so changes to the beginning, end or type of the
215 491
216Called whenever a selection has been copied, but before the selection is 492Called whenever a selection has been copied, but before the selection is
217requested from the server. The selection text can be queried and changed 493requested from the server. The selection text can be queried and changed
218by calling C<< $term->selection >>. 494by calling C<< $term->selection >>.
219 495
220Returning a true value aborts selection grabbing. It will still be hilighted. 496Returning a true value aborts selection grabbing. It will still be highlighted.
221 497
222=item on_sel_extend $term 498=item on_sel_extend $term
223 499
224Called whenever the user tries to extend the selection (e.g. with a double 500Called whenever the user tries to extend the selection (e.g. with a double
225click) and is either supposed to return false (normal operation), or 501click) and is either supposed to return false (normal operation), or
226should extend the selection itelf and return true to suppress the built-in 502should extend the selection itself and return true to suppress the built-in
227processing. 503processing. This can happen multiple times, as long as the callback
504returns true, it will be called on every further click by the user and is
505supposed to enlarge the selection more and more, if possible.
228 506
229See the F<selection> example extension. 507See the F<selection> example extension.
230 508
231=item on_view_change $term, $offset 509=item on_view_change $term, $offset
232 510
233Called whenever the view offset changes, i..e the user or program 511Called whenever the view offset changes, i.e. the user or program
234scrolls. Offset C<0> means display the normal terminal, positive values 512scrolls. Offset C<0> means display the normal terminal, positive values
235show this many lines of scrollback. 513show this many lines of scrollback.
236 514
237=item on_scroll_back $term, $lines, $saved 515=item on_scroll_back $term, $lines, $saved
238 516
242 520
243It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 521It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
244$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 522$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
245number of lines that will be in the scrollback buffer. 523number of lines that will be in the scrollback buffer.
246 524
525=item on_osc_seq $term, $op, $args
526
527Called on every OSC sequence and can be used to suppress it or modify its
528behaviour. The default should be to return an empty list. A true value
529suppresses execution of the request completely. Make sure you don't get
530confused by recursive invocations when you output an osc sequence within
531this callback.
532
533C<on_osc_seq_perl> should be used for new behaviour.
534
247=item on_osc_seq $term, $string 535=item on_osc_seq_perl $term, $string
248 536
249Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 537Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
250operating system command) is processed. Cursor position and other state 538operating system command) is processed. Cursor position and other state
251information is up-to-date when this happens. For interoperability, the 539information is up-to-date when this happens. For interoperability, the
252string should start with the extension name and a colon, to distinguish 540string should start with the extension name and a colon, to distinguish
253it from commands for other extensions, and this might be enforced in the 541it from commands for other extensions, and this might be enforced in the
254future. 542future.
255 543
256Be careful not ever to trust (in a security sense) the data you receive, 544Be careful not ever to trust (in a security sense) the data you receive,
257as its source can not easily be controleld (e-mail content, messages from 545as its source can not easily be controlled (e-mail content, messages from
258other users on the same system etc.). 546other users on the same system etc.).
259 547
260=item on_add_lines $term, $string 548=item on_add_lines $term, $string
261 549
262Called whenever text is about to be output, with the text as argument. You 550Called whenever text is about to be output, with the text as argument. You
293 581
294=item on_refresh_end $term 582=item on_refresh_end $term
295 583
296Called just after the screen gets redrawn. See C<on_refresh_begin>. 584Called just after the screen gets redrawn. See C<on_refresh_begin>.
297 585
298=item on_keyboard_command $term, $string 586=item on_user_command $term, $string
299 587
300Called whenever the user presses a key combination that has a 588Called whenever a user-configured event is being activated (e.g. via
301C<perl:string> action bound to it (see description of the B<keysym> 589a C<perl:string> action bound to a key, see description of the B<keysym>
302resource in the @@RXVT_NAME@@(1) manpage). 590resource in the @@RXVT_NAME@@(1) manpage).
591
592The event is simply the action string. This interface is assumed to change
593slightly in the future.
594
595=item on_resize_all_windows $tern, $new_width, $new_height
596
597Called just after the new window size has been calculated, but before
598windows are actually being resized or hints are being set. If this hook
599returns TRUE, setting of the window hints is being skipped.
600
601=item on_x_event $term, $event
602
603Called on every X event received on the vt window (and possibly other
604windows). Should only be used as a last resort. Most event structure
605members are not passed.
606
607=item on_root_event $term, $event
608
609Like C<on_x_event>, but is called for events on the root window.
303 610
304=item on_focus_in $term 611=item on_focus_in $term
305 612
306Called whenever the window gets the keyboard focus, before rxvt-unicode 613Called whenever the window gets the keyboard focus, before rxvt-unicode
307does focus in processing. 614does focus in processing.
308 615
309=item on_focus_out $term 616=item on_focus_out $term
310 617
311Called wheneever the window loses keyboard focus, before rxvt-unicode does 618Called whenever the window loses keyboard focus, before rxvt-unicode does
312focus out processing. 619focus out processing.
620
621=item on_configure_notify $term, $event
622
623=item on_property_notify $term, $event
313 624
314=item on_key_press $term, $event, $keysym, $octets 625=item on_key_press $term, $event, $keysym, $octets
315 626
316=item on_key_release $term, $event, $keysym 627=item on_key_release $term, $event, $keysym
317 628
327 638
328Called whenever the corresponding X event is received for the terminal If 639Called whenever the corresponding X event is received for the terminal If
329the hook returns true, then the even will be ignored by rxvt-unicode. 640the hook returns true, then the even will be ignored by rxvt-unicode.
330 641
331The event is a hash with most values as named by Xlib (see the XEvent 642The event is a hash with most values as named by Xlib (see the XEvent
332manpage), with the additional members C<row> and C<col>, which are the row 643manpage), with the additional members C<row> and C<col>, which are the
333and column under the mouse cursor. 644(real, not screen-based) row and column under the mouse cursor.
334 645
335C<on_key_press> additionally receives the string rxvt-unicode would 646C<on_key_press> additionally receives the string rxvt-unicode would
336output, if any, in locale-specific encoding. 647output, if any, in locale-specific encoding.
337 648
338subwindow. 649subwindow.
339 650
340=back 651=item on_client_message $term, $event
341 652
342=head2 Variables in the C<urxvt> Package 653=item on_wm_protocols $term, $event
343 654
344=over 4 655=item on_wm_delete_window $term, $event
345 656
346=item $urxvt::TERM 657Called when various types of ClientMessage events are received (all with
347 658format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
348The current terminal. This variable stores the current C<urxvt::term>
349object, whenever a callback/hook is executing.
350
351=back
352
353=head2 Functions in the C<urxvt> Package
354
355=over 4
356
357=item $term = new urxvt [arg...]
358
359Creates a new terminal, very similar as if you had started it with
360C<system $binfile, arg...>. Croaks (and probably outputs an error message)
361if the new instance couldn't be created. Returns C<undef> if the new
362instance didn't initialise perl, and the terminal object otherwise. The
363C<init> and C<start> hooks will be called during the call.
364
365=item urxvt::fatal $errormessage
366
367Fatally aborts execution with the given error message. Avoid at all
368costs! The only time this is acceptable is when the terminal process
369starts up.
370
371=item urxvt::warn $string
372
373Calls C<rxvt_warn> with the given string which should not include a
374newline. The module also overwrites the C<warn> builtin with a function
375that calls this function.
376
377Using this function has the advantage that its output ends up in the
378correct place, e.g. on stderr of the connecting urxvtc client.
379
380=item $is_safe = urxvt::safe
381
382Returns true when it is safe to do potentially unsafe things, such as
383evaluating perl code specified by the user. This is true when urxvt was
384started setuid or setgid.
385
386=item $time = urxvt::NOW
387
388Returns the "current time" (as per the event loop).
389
390=item urxvt::CurrentTime
391
392=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
393Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
394Button4Mask, Button5Mask, AnyModifier
395
396Various constants for use in X calls and event processing.
397
398=back
399
400=head2 RENDITION
401
402Rendition bitsets contain information about colour, font, font styles and
403similar information for each screen cell.
404
405The following "macros" deal with changes in rendition sets. You should
406never just create a bitset, you should always modify an existing one,
407as they contain important information required for correct operation of
408rxvt-unicode.
409
410=over 4
411
412=item $rend = urxvt::DEFAULT_RSTYLE
413
414Returns the default rendition, as used when the terminal is starting up or
415being reset. Useful as a base to start when creating renditions.
416
417=item $rend = urxvt::OVERLAY_RSTYLE
418
419Return the rendition mask used for overlays by default.
420
421=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
422
423Return the bit that enabled bold, italic, blink, reverse-video and
424underline, respectively. To enable such a style, just logically OR it into
425the bitset.
426
427=item $foreground = urxvt::GET_BASEFG $rend
428
429=item $background = urxvt::GET_BASEBG $rend
430
431Return the foreground/background colour index, respectively.
432
433=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
434
435=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
436
437Replace the foreground/background colour in the rendition mask with the
438specified one.
439
440=item $value = urxvt::GET_CUSTOM ($rend)
441
442Return the "custom" value: Every rendition has 5 bits for use by
443extensions. They can be set and changed as you like and are initially
444zero.
445
446=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
447
448Change the custom value.
449 659
450=back 660=back
451 661
452=cut 662=cut
453 663
459use Scalar::Util (); 669use Scalar::Util ();
460use List::Util (); 670use List::Util ();
461 671
462our $VERSION = 1; 672our $VERSION = 1;
463our $TERM; 673our $TERM;
674our @TERM_INIT;
675our @TERM_EXT;
464our @HOOKNAME; 676our @HOOKNAME;
465our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 677our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
466our %OPTION; 678our %OPTION;
467 679
468our $LIBDIR; 680our $LIBDIR;
469our $RESNAME; 681our $RESNAME;
470our $RESCLASS; 682our $RESCLASS;
471our $RXVTNAME; 683our $RXVTNAME;
472 684
685our $NOCHAR = chr 0xffff;
686
687=head2 Variables in the C<urxvt> Package
688
689=over 4
690
691=item $urxvt::LIBDIR
692
693The rxvt-unicode library directory, where, among other things, the perl
694modules and scripts are stored.
695
696=item $urxvt::RESCLASS, $urxvt::RESCLASS
697
698The resource class and name rxvt-unicode uses to look up X resources.
699
700=item $urxvt::RXVTNAME
701
702The basename of the installed binaries, usually C<urxvt>.
703
704=item $urxvt::TERM
705
706The current terminal. This variable stores the current C<urxvt::term>
707object, whenever a callback/hook is executing.
708
709=item @urxvt::TERM_INIT
710
711All code references in this array will be called as methods of the next newly
712created C<urxvt::term> object (during the C<on_init> phase). The array
713gets cleared before the code references that were in it are being executed,
714so references can push themselves onto it again if they so desire.
715
716This complements to the perl-eval command line option, but gets executed
717first.
718
719=item @urxvt::TERM_EXT
720
721Works similar to C<@TERM_INIT>, but contains perl package/class names, which
722get registered as normal extensions after calling the hooks in C<@TERM_INIT>
723but before other extensions. Gets cleared just like C<@TERM_INIT>.
724
725=back
726
727=head2 Functions in the C<urxvt> Package
728
729=over 4
730
731=item urxvt::fatal $errormessage
732
733Fatally aborts execution with the given error message. Avoid at all
734costs! The only time this is acceptable is when the terminal process
735starts up.
736
737=item urxvt::warn $string
738
739Calls C<rxvt_warn> with the given string which should not include a
740newline. The module also overwrites the C<warn> builtin with a function
741that calls this function.
742
743Using this function has the advantage that its output ends up in the
744correct place, e.g. on stderr of the connecting urxvtc client.
745
746Messages have a size limit of 1023 bytes currently.
747
748=item @terms = urxvt::termlist
749
750Returns all urxvt::term objects that exist in this process, regardless of
751whether they are started, being destroyed etc., so be careful. Only term
752objects that have perl extensions attached will be returned (because there
753is no urxvt::term objet associated with others).
754
755=item $time = urxvt::NOW
756
757Returns the "current time" (as per the event loop).
758
759=item urxvt::CurrentTime
760
761=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
762Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
763Button4Mask, Button5Mask, AnyModifier
764
765=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
766ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
767PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
768Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
769KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
770ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
771FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
772
773=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
774EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
775GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
776UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
777ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
778CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
779SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
780
781Various constants for use in X calls and event processing.
782
783=back
784
785=head2 RENDITION
786
787Rendition bitsets contain information about colour, font, font styles and
788similar information for each screen cell.
789
790The following "macros" deal with changes in rendition sets. You should
791never just create a bitset, you should always modify an existing one,
792as they contain important information required for correct operation of
793rxvt-unicode.
794
795=over 4
796
797=item $rend = urxvt::DEFAULT_RSTYLE
798
799Returns the default rendition, as used when the terminal is starting up or
800being reset. Useful as a base to start when creating renditions.
801
802=item $rend = urxvt::OVERLAY_RSTYLE
803
804Return the rendition mask used for overlays by default.
805
806=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
807
808Return the bit that enabled bold, italic, blink, reverse-video and
809underline, respectively. To enable such a style, just logically OR it into
810the bitset.
811
812=item $foreground = urxvt::GET_BASEFG $rend
813
814=item $background = urxvt::GET_BASEBG $rend
815
816Return the foreground/background colour index, respectively.
817
818=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
819
820=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
821
822=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
823
824Replace the foreground/background colour in the rendition mask with the
825specified one.
826
827=item $value = urxvt::GET_CUSTOM $rend
828
829Return the "custom" value: Every rendition has 5 bits for use by
830extensions. They can be set and changed as you like and are initially
831zero.
832
833=item $rend = urxvt::SET_CUSTOM $rend, $new_value
834
835Change the custom value.
836
837=back
838
839=cut
840
473BEGIN { 841BEGIN {
474 urxvt->bootstrap;
475
476 # overwrite perl's warn 842 # overwrite perl's warn
477 *CORE::GLOBAL::warn = sub { 843 *CORE::GLOBAL::warn = sub {
478 my $msg = join "", @_; 844 my $msg = join "", @_;
479 $msg .= "\n" 845 $msg .= "\n"
480 unless $msg =~ /\n$/; 846 unless $msg =~ /\n$/;
481 urxvt::warn ($msg); 847 urxvt::warn ($msg);
482 }; 848 };
483
484 delete $ENV{IFS};
485 delete $ENV{CDPATH};
486 delete $ENV{BASH_ENV};
487 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
488} 849}
489 850
490my @hook_count; 851no warnings 'utf8';
852
491my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 853my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
492 854
493sub verbose { 855sub verbose {
494 my ($level, $msg) = @_; 856 my ($level, $msg) = @_;
495 warn "$msg\n" if $level <= $verbosity; 857 warn "$msg\n" if $level <= $verbosity;
496} 858}
497 859
498my $extension_pkg = "extension0000";
499my %extension_pkg; 860my %extension_pkg;
500 861
501# load a single script into its own package, once only 862# load a single script into its own package, once only
502sub extension_package($) { 863sub extension_package($) {
503 my ($path) = @_; 864 my ($path) = @_;
504 865
505 $extension_pkg{$path} ||= do { 866 $extension_pkg{$path} ||= do {
506 my $pkg = "urxvt::" . ($extension_pkg++); 867 $path =~ /([^\/\\]+)$/;
868 my $pkg = $1;
869 $pkg =~ s/[^[:word:]]/_/g;
870 $pkg = "urxvt::ext::$pkg";
507 871
508 verbose 3, "loading extension '$path' into package '$pkg'"; 872 verbose 3, "loading extension '$path' into package '$pkg'";
509 873
510 open my $fh, "<:raw", $path 874 open my $fh, "<:raw", $path
511 or die "$path: $!"; 875 or die "$path: $!";
512 876
513 my $source = untaint 877 my $source =
514 "package $pkg; use strict; use utf8;\n" 878 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
515 . "use base urxvt::term::extension::;\n"
516 . "#line 1 \"$path\"\n{\n" 879 . "#line 1 \"$path\"\n{\n"
517 . (do { local $/; <$fh> }) 880 . (do { local $/; <$fh> })
518 . "\n};\n1"; 881 . "\n};\n1";
519 882
520 eval $source 883 eval $source
534 if ($htype == 0) { # INIT 897 if ($htype == 0) { # INIT
535 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 898 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
536 899
537 my %ext_arg; 900 my %ext_arg;
538 901
902 {
903 my @init = @TERM_INIT;
904 @TERM_INIT = ();
905 $_->($TERM) for @init;
906 my @pkg = @TERM_EXT;
907 @TERM_EXT = ();
908 $TERM->register_package ($_) for @pkg;
909 }
910
539 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 911 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
540 if ($_ eq "default") { 912 if ($_ eq "default") {
541 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 913 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
542 } elsif (/^-(.*)$/) { 914 } elsif (/^-(.*)$/) {
543 delete $ext_arg{$1}; 915 delete $ext_arg{$1};
544 } elsif (/^([^<]+)<(.*)>$/) { 916 } elsif (/^([^<]+)<(.*)>$/) {
545 push @{ $ext_arg{$1} }, $2; 917 push @{ $ext_arg{$1} }, $2;
546 } else { 918 } else {
547 $ext_arg{$_} ||= []; 919 $ext_arg{$_} ||= [];
548 } 920 }
549 } 921 }
550 922
551 while (my ($ext, $argv) = each %ext_arg) { 923 for my $ext (sort keys %ext_arg) {
552 my @files = grep -f $_, map "$_/$ext", @dirs; 924 my @files = grep -f $_, map "$_/$ext", @dirs;
553 925
554 if (@files) { 926 if (@files) {
555 $TERM->register_package (extension_package $files[0], $argv); 927 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
556 } else { 928 } else {
557 warn "perl extension '$ext' not found in perl library search path\n"; 929 warn "perl extension '$ext' not found in perl library search path\n";
558 } 930 }
559 } 931 }
560 932
566 938
567 if (my $cb = $TERM->{_hook}[$htype]) { 939 if (my $cb = $TERM->{_hook}[$htype]) {
568 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 940 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
569 if $verbosity >= 10; 941 if $verbosity >= 10;
570 942
571 keys %$cb; 943 for my $pkg (keys %$cb) {
572
573 while (my ($pkg, $cb) = each %$cb) {
574 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 944 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
575 and last; 945 $retval ||= $retval_;
576 946
577 if ($@) { 947 if ($@) {
578 $TERM->ungrab; # better to lose the grab than the session 948 $TERM->ungrab; # better to lose the grab than the session
579 warn $@; 949 warn $@;
580 } 950 }
581 } 951 }
952
953 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
954 if $verbosity >= 11;
582 } 955 }
583 956
584 if ($htype == 1) { # DESTROY 957 if ($htype == 1) { # DESTROY
585 if (my $hook = delete $TERM->{_hook}) {
586 for my $htype (0..$#$hook) {
587 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
588 or set_should_invoke $htype, 0;
589 }
590 }
591
592 # clear package objects 958 # clear package objects
593 %$_ = () for values %{ $TERM->{_pkg} }; 959 %$_ = () for values %{ $TERM->{_pkg} };
594 960
595 # clear package 961 # clear package
596 %$TERM = (); 962 %$TERM = ();
597 } 963 }
598 964
599 $retval 965 $retval
966}
967
968sub SET_COLOR($$$) {
969 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
600} 970}
601 971
602# urxvt::term::extension 972# urxvt::term::extension
603 973
604package urxvt::term::extension; 974package urxvt::term::extension;
610 while (my ($name, $cb) = each %hook) { 980 while (my ($name, $cb) = each %hook) {
611 my $htype = $HOOKTYPE{uc $name}; 981 my $htype = $HOOKTYPE{uc $name};
612 defined $htype 982 defined $htype
613 or Carp::croak "unsupported hook type '$name'"; 983 or Carp::croak "unsupported hook type '$name'";
614 984
985 $self->set_should_invoke ($htype, +1)
615 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 986 unless exists $self->{term}{_hook}[$htype]{$pkg};
616 $hook_count[$htype]++
617 or urxvt::set_should_invoke $htype, 1;
618 }
619 987
620 $self->{term}{_hook}[$htype]{$pkg} = $cb; 988 $self->{term}{_hook}[$htype]{$pkg} = $cb;
621 } 989 }
622} 990}
623 991
628 for my $name (@hook) { 996 for my $name (@hook) {
629 my $htype = $HOOKTYPE{uc $name}; 997 my $htype = $HOOKTYPE{uc $name};
630 defined $htype 998 defined $htype
631 or Carp::croak "unsupported hook type '$name'"; 999 or Carp::croak "unsupported hook type '$name'";
632 1000
1001 $self->set_should_invoke ($htype, -1)
633 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 1002 if delete $self->{term}{_hook}[$htype]{$pkg};
634 --$hook_count[$htype]
635 or urxvt::set_should_invoke $htype, 0;
636 }
637 } 1003 }
638} 1004}
639 1005
640our $AUTOLOAD; 1006our $AUTOLOAD;
641 1007
672 1038
673=head2 The C<urxvt::anyevent> Class 1039=head2 The C<urxvt::anyevent> Class
674 1040
675The sole purpose of this class is to deliver an interface to the 1041The sole purpose of this class is to deliver an interface to the
676C<AnyEvent> module - any module using it will work inside urxvt without 1042C<AnyEvent> module - any module using it will work inside urxvt without
677further work. The only exception is that you cannot wait on condition 1043further programming. The only exception is that you cannot wait on
678variables, but non-blocking condvar use is ok. What this means is that you 1044condition variables, but non-blocking condvar use is ok. What this means
679cannot use blocking APIs, but the non-blocking variant should work. 1045is that you cannot use blocking APIs, but the non-blocking variant should
1046work.
680 1047
681=cut 1048=cut
682 1049
683our $VERSION = 1; 1050our $VERSION = 1;
684 1051
746# find on_xxx subs in the package and register them 1113# find on_xxx subs in the package and register them
747# as hooks 1114# as hooks
748sub register_package { 1115sub register_package {
749 my ($self, $pkg, $argv) = @_; 1116 my ($self, $pkg, $argv) = @_;
750 1117
1118 no strict 'refs';
1119
1120 urxvt::verbose 6, "register package $pkg to $self";
1121
1122 @{"$pkg\::ISA"} = urxvt::term::extension::;
1123
751 my $proxy = bless { 1124 my $proxy = bless {
752 _pkg => $pkg, 1125 _pkg => $pkg,
753 argv => $argv, 1126 argv => $argv,
754 }, $pkg; 1127 }, $pkg;
755 Scalar::Util::weaken ($proxy->{term} = $self); 1128 Scalar::Util::weaken ($proxy->{term} = $self);
761 $proxy->enable ($name => $ref); 1134 $proxy->enable ($name => $ref);
762 } 1135 }
763 } 1136 }
764} 1137}
765 1138
1139=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1140
1141Creates a new terminal, very similar as if you had started it with system
1142C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1143hash which defines the environment of the new terminal.
1144
1145Croaks (and probably outputs an error message) if the new instance
1146couldn't be created. Returns C<undef> if the new instance didn't
1147initialise perl, and the terminal object otherwise. The C<init> and
1148C<start> hooks will be called before this call returns, and are free to
1149refer to global data (which is race free).
1150
1151=cut
1152
1153sub new {
1154 my ($class, $env, @args) = @_;
1155
1156 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1157 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1158
1159 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
1160}
1161
766=item $term->destroy 1162=item $term->destroy
767 1163
768Destroy the terminal object (close the window, free resources etc.). 1164Destroy the terminal object (close the window, free resources
1165etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1166watchers (timers, io watchers) are still active.
1167
1168=item $term->exec_async ($cmd[, @args])
1169
1170Works like the combination of the C<fork>/C<exec> builtins, which executes
1171("starts") programs in the background. This function takes care of setting
1172the user environment before exec'ing the command (e.g. C<PATH>) and should
1173be preferred over explicit calls to C<exec> or C<system>.
1174
1175Returns the pid of the subprocess or C<undef> on error.
1176
1177=cut
1178
1179sub exec_async {
1180 my $self = shift;
1181
1182 my $pid = fork;
1183
1184 return $pid
1185 if !defined $pid or $pid;
1186
1187 %ENV = %{ $self->env };
1188
1189 exec @_;
1190 urxvt::_exit 255;
1191}
769 1192
770=item $isset = $term->option ($optval[, $set]) 1193=item $isset = $term->option ($optval[, $set])
771 1194
772Returns true if the option specified by C<$optval> is enabled, and 1195Returns true if the option specified by C<$optval> is enabled, and
773optionally change it. All option values are stored by name in the hash 1196optionally change it. All option values are stored by name in the hash
774C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1197C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
775 1198
776Here is a a likely non-exhaustive list of option names, please see the 1199Here is a likely non-exhaustive list of option names, please see the
777source file F</src/optinc.h> to see the actual list: 1200source file F</src/optinc.h> to see the actual list:
778 1201
779 borderLess console cursorBlink cursorUnderline hold iconic insecure 1202 borderLess console cursorBlink cursorUnderline hold iconic insecure
780 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1203 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
781 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1204 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
782 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1205 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
783 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1206 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
784 tripleclickwords utmpInhibit visualBell 1207 transparent tripleclickwords utmpInhibit visualBell
785 1208
786=item $value = $term->resource ($name[, $newval]) 1209=item $value = $term->resource ($name[, $newval])
787 1210
788Returns the current resource value associated with a given name and 1211Returns the current resource value associated with a given name and
789optionally sets a new value. Setting values is most useful in the C<init> 1212optionally sets a new value. Setting values is most useful in the C<init>
798likely change). 1221likely change).
799 1222
800Please note that resource strings will currently only be freed when the 1223Please note that resource strings will currently only be freed when the
801terminal is destroyed, so changing options frequently will eat memory. 1224terminal is destroyed, so changing options frequently will eat memory.
802 1225
803Here is a a likely non-exhaustive list of resource names, not all of which 1226Here is a likely non-exhaustive list of resource names, not all of which
804are supported in every build, please see the source file F</src/rsinc.h> 1227are supported in every build, please see the source file F</src/rsinc.h>
805to see the actual list: 1228to see the actual list:
806 1229
807 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1230 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
808 borderLess color cursorBlink cursorUnderline cutchars delete_key 1231 borderLess color cursorBlink cursorUnderline cutchars delete_key
809 display_name embed ext_bwidth fade font geometry hold iconName 1232 display_name embed ext_bwidth fade font geometry hold iconName
810 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1233 imFont imLocale inputMethod insecure int_bwidth intensityStyles
811 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1234 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
812 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1235 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
813 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1236 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
814 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1237 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
815 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1238 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
816 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1239 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
817 shade term_name title transparent transparent_all tripleclickwords 1240 secondaryScreen secondaryScroll selectstyle shade term_name title
818 utmpInhibit visualBell 1241 transient_for transparent transparent_all tripleclickwords utmpInhibit
1242 visualBell
819 1243
820=cut 1244=cut
821 1245
822sub resource($$;$) { 1246sub resource($$;$) {
823 my ($self, $name) = (shift, shift); 1247 my ($self, $name) = (shift, shift);
824 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1248 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
825 &urxvt::term::_resource 1249 &urxvt::term::_resource
826} 1250}
827 1251
1252=item $value = $term->x_resource ($pattern)
1253
1254Returns the X-Resource for the given pattern, excluding the program or
1255class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1256same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1257resource with that pattern exists.
1258
1259This method should only be called during the C<on_start> hook, as there is
1260only one resource database per display, and later invocations might return
1261the wrong resources.
1262
828=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1263=item $success = $term->parse_keysym ($keysym_spec, $command_string)
829 1264
830Adds a keymap translation exactly as specified via a resource. See the 1265Adds a keymap translation exactly as specified via a resource. See the
831C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1266C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
832 1267
847=item ($row, $col) = $term->selection_end ([$row, $col]) 1282=item ($row, $col) = $term->selection_end ([$row, $col])
848 1283
849Return the current values of the selection mark, begin or end positions, 1284Return the current values of the selection mark, begin or end positions,
850and optionally set them to new values. 1285and optionally set them to new values.
851 1286
1287=item $term->selection_make ($eventtime[, $rectangular])
1288
1289Tries to make a selection as set by C<selection_beg> and
1290C<selection_end>. If C<$rectangular> is true (default: false), a
1291rectangular selection will be made. This is the prefered function to make
1292a selection.
1293
852=item $success = $term->selection_grab ($eventtime) 1294=item $success = $term->selection_grab ($eventtime)
853 1295
854Try to request the primary selection from the server (for example, as set 1296Try to request the primary selection text from the server (for example, as
855by the next method). 1297set by the next method). No visual feedback will be given. This function
1298is mostly useful from within C<on_sel_grab> hooks.
856 1299
857=item $oldtext = $term->selection ([$newtext]) 1300=item $oldtext = $term->selection ([$newtext])
858 1301
859Return the current selection text and optionally replace it by C<$newtext>. 1302Return the current selection text and optionally replace it by C<$newtext>.
860 1303
953Convert the given locale-encoded octets into a perl string. 1396Convert the given locale-encoded octets into a perl string.
954 1397
955=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) 1398=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
956 1399
957XORs the rendition values in the given span with the provided value 1400XORs the rendition values in the given span with the provided value
958(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar 1401(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
959to the selection. 1402refresh hooks to provide effects similar to the selection.
960 1403
961=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) 1404=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
962 1405
963Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1406Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
964whitespace will additionally be xored with the C<$rstyle2>, which defaults 1407whitespace will additionally be xored with the C<$rstyle2>, which defaults
965to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines 1408to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
966it instead. 1409it instead. Both styles I<MUST NOT> contain font styles.
967 1410
968=item $term->scr_bell 1411=item $term->scr_bell
969 1412
970Ring the bell! 1413Ring the bell!
971 1414
978 1421
979Normally its not a good idea to use this function, as programs might be 1422Normally its not a good idea to use this function, as programs might be
980confused by changes in cursor position or scrolling. Its useful inside a 1423confused by changes in cursor position or scrolling. Its useful inside a
981C<on_add_lines> hook, though. 1424C<on_add_lines> hook, though.
982 1425
1426=item $term->scr_change_screen ($screen)
1427
1428Switch to given screen - 0 primary, 1 secondary.
1429
983=item $term->cmd_parse ($octets) 1430=item $term->cmd_parse ($octets)
984 1431
985Similar to C<scr_add_lines>, but the argument must be in the 1432Similar to C<scr_add_lines>, but the argument must be in the
986locale-specific encoding of the terminal and can contain command sequences 1433locale-specific encoding of the terminal and can contain command sequences
987(escape codes) that will be interpreted. 1434(escape codes) that will be interpreted.
997Replaces the event mask of the pty watcher by the given event mask. Can 1444Replaces the event mask of the pty watcher by the given event mask. Can
998be used to suppress input and output handling to the pty/tty. See the 1445be used to suppress input and output handling to the pty/tty. See the
999description of C<< urxvt::timer->events >>. Make sure to always restore 1446description of C<< urxvt::timer->events >>. Make sure to always restore
1000the previous value. 1447the previous value.
1001 1448
1449=item $fd = $term->pty_fd
1450
1451Returns the master file descriptor for the pty in use, or C<-1> if no pty
1452is used.
1453
1002=item $windowid = $term->parent 1454=item $windowid = $term->parent
1003 1455
1004Return the window id of the toplevel window. 1456Return the window id of the toplevel window.
1005 1457
1006=item $windowid = $term->vt 1458=item $windowid = $term->vt
1007 1459
1008Return the window id of the terminal window. 1460Return the window id of the terminal window.
1009 1461
1462=item $term->vt_emask_add ($x_event_mask)
1463
1464Adds the specified events to the vt event mask. Useful e.g. when you want
1465to receive pointer events all the times:
1466
1467 $term->vt_emask_add (urxvt::PointerMotionMask);
1468
1469=item $term->focus_in
1470
1471=item $term->focus_out
1472
1473=item $term->key_press ($state, $keycode[, $time])
1474
1475=item $term->key_release ($state, $keycode[, $time])
1476
1477Deliver various fake events to to terminal.
1478
1010=item $window_width = $term->width 1479=item $window_width = $term->width
1011 1480
1012=item $window_height = $term->height 1481=item $window_height = $term->height
1013 1482
1014=item $font_width = $term->fwidth 1483=item $font_width = $term->fwidth
1027 1496
1028=item $max_scrollback = $term->saveLines 1497=item $max_scrollback = $term->saveLines
1029 1498
1030=item $nrow_plus_saveLines = $term->total_rows 1499=item $nrow_plus_saveLines = $term->total_rows
1031 1500
1032=item $lines_in_scrollback = $term->nsaved 1501=item $topmost_scrollback_row = $term->top_row
1033 1502
1034Return various integers describing terminal characteristics. 1503Return various integers describing terminal characteristics.
1035 1504
1505=item $x_display = $term->display_id
1506
1507Return the DISPLAY used by rxvt-unicode.
1508
1036=item $lc_ctype = $term->locale 1509=item $lc_ctype = $term->locale
1037 1510
1038Returns the LC_CTYPE category string used by this rxvt-unicode. 1511Returns the LC_CTYPE category string used by this rxvt-unicode.
1039 1512
1040=item $x_display = $term->display_id 1513=item $env = $term->env
1041 1514
1042Return the DISPLAY used by rxvt-unicode. 1515Returns a copy of the environment in effect for the terminal as a hashref
1516similar to C<\%ENV>.
1517
1518=item @envv = $term->envv
1519
1520Returns the environment as array of strings of the form C<VAR=VALUE>.
1521
1522=item @argv = $term->argv
1523
1524Return the argument vector as this terminal, similar to @ARGV, but
1525includes the program name as first element.
1526
1527=cut
1528
1529sub env {
1530 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1531}
1043 1532
1044=item $modifiermask = $term->ModLevel3Mask 1533=item $modifiermask = $term->ModLevel3Mask
1045 1534
1046=item $modifiermask = $term->ModMetaMask 1535=item $modifiermask = $term->ModMetaMask
1047 1536
1048=item $modifiermask = $term->ModNumLockMask 1537=item $modifiermask = $term->ModNumLockMask
1049 1538
1050Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1539Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1051AltGr), the meta key (often Alt) and the num lock key, if applicable. 1540AltGr), the meta key (often Alt) and the num lock key, if applicable.
1052 1541
1542=item $screen = $term->current_screen
1543
1544Returns the currently displayed screen (0 primary, 1 secondary).
1545
1546=item $cursor_is_hidden = $term->hidden_cursor
1547
1548Returns whether the cursor is currently hidden or not.
1549
1053=item $view_start = $term->view_start ([$newvalue]) 1550=item $view_start = $term->view_start ([$newvalue])
1054 1551
1055Returns the negative row number of the topmost line. Minimum value is 1552Returns the row number of the topmost displayed line. Maximum value is
1056C<0>, which displays the normal terminal contents. Larger values scroll 1553C<0>, which displays the normal terminal contents. Lower values scroll
1057this many lines into the scrollback buffer. 1554this many lines into the scrollback buffer.
1058 1555
1059=item $term->want_refresh 1556=item $term->want_refresh
1060 1557
1061Requests a screen refresh. At the next opportunity, rxvt-unicode will 1558Requests a screen refresh. At the next opportunity, rxvt-unicode will
1076line, starting at column C<$start_col> (default C<0>), which is useful 1573line, starting at column C<$start_col> (default C<0>), which is useful
1077to replace only parts of a line. The font index in the rendition will 1574to replace only parts of a line. The font index in the rendition will
1078automatically be updated. 1575automatically be updated.
1079 1576
1080C<$text> is in a special encoding: tabs and wide characters that use more 1577C<$text> is in a special encoding: tabs and wide characters that use more
1081than one cell when displayed are padded with urxvt::NOCHAR characters 1578than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1082(C<chr 65535>). Characters with combining characters and other characters 1579characters. Characters with combining characters and other characters that
1083that do not fit into the normal tetx encoding will be replaced with 1580do not fit into the normal tetx encoding will be replaced with characters
1084characters in the private use area. 1581in the private use area.
1085 1582
1086You have to obey this encoding when changing text. The advantage is 1583You have to obey this encoding when changing text. The advantage is
1087that C<substr> and similar functions work on screen cells and not on 1584that C<substr> and similar functions work on screen cells and not on
1088characters. 1585characters.
1089 1586
1140Return the row number of the first/last row of the line, respectively. 1637Return the row number of the first/last row of the line, respectively.
1141 1638
1142=item $offset = $line->offset_of ($row, $col) 1639=item $offset = $line->offset_of ($row, $col)
1143 1640
1144Returns the character offset of the given row|col pair within the logical 1641Returns the character offset of the given row|col pair within the logical
1145line. 1642line. Works for rows outside the line, too, and returns corresponding
1643offsets outside the string.
1146 1644
1147=item ($row, $col) = $line->coord_of ($offset) 1645=item ($row, $col) = $line->coord_of ($offset)
1148 1646
1149Translates a string offset into terminal coordinates again. 1647Translates a string offset into terminal coordinates again.
1150 1648
1232where one character corresponds to one screen cell. See 1730where one character corresponds to one screen cell. See
1233C<< $term->ROW_t >> for details. 1731C<< $term->ROW_t >> for details.
1234 1732
1235=item $string = $term->special_decode $text 1733=item $string = $term->special_decode $text
1236 1734
1237Converts rxvt-unicodes text reprsentation into a perl string. See 1735Converts rxvt-unicodes text representation into a perl string. See
1238C<< $term->ROW_t >> for details. 1736C<< $term->ROW_t >> for details.
1239 1737
1240=item $success = $term->grab_button ($button, $modifiermask) 1738=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1241 1739
1740=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1741
1242Registers a synchronous button grab. See the XGrabButton manpage. 1742Register/unregister a synchronous button grab. See the XGrabButton
1743manpage.
1243 1744
1244=item $success = $term->grab ($eventtime[, $sync]) 1745=item $success = $term->grab ($eventtime[, $sync])
1245 1746
1246Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1747Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1247synchronous (C<$sync> is true). Also remembers the grab timestampe. 1748synchronous (C<$sync> is true). Also remembers the grab timestamp.
1248 1749
1249=item $term->allow_events_async 1750=item $term->allow_events_async
1250 1751
1251Calls XAllowEvents with AsyncBoth for the most recent grab. 1752Calls XAllowEvents with AsyncBoth for the most recent grab.
1252 1753
1263 1764
1264Calls XUngrab for the most recent grab. Is called automatically on 1765Calls XUngrab for the most recent grab. Is called automatically on
1265evaluation errors, as it is better to lose the grab in the error case as 1766evaluation errors, as it is better to lose the grab in the error case as
1266the session. 1767the session.
1267 1768
1769=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1770
1771=item $atom_name = $term->XGetAtomName ($atom)
1772
1773=item @atoms = $term->XListProperties ($window)
1774
1775=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1776
1777=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1778
1779=item $term->XDeleteProperty ($window, $property)
1780
1781=item $window = $term->DefaultRootWindow
1782
1783=item $term->XReparentWindow ($window, $parent, [$x, $y])
1784
1785=item $term->XMapWindow ($window)
1786
1787=item $term->XUnmapWindow ($window)
1788
1789=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1790
1791=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1792
1793=item $term->XChangeInput ($window, $add_events[, $del_events])
1794
1795Various X or X-related functions. The C<$term> object only serves as
1796the source of the display, otherwise those functions map more-or-less
1797directory onto the X functions of the same name.
1798
1268=back 1799=back
1269 1800
1270=cut 1801=cut
1271 1802
1272package urxvt::popup; 1803package urxvt::popup;
1286 1817
1287 $item->{render} ||= sub { $_[0]{text} }; 1818 $item->{render} ||= sub { $_[0]{text} };
1288 1819
1289 push @{ $self->{item} }, $item; 1820 push @{ $self->{item} }, $item;
1290} 1821}
1822
1823=item $popup->add_title ($title)
1824
1825Adds a non-clickable title to the popup.
1826
1827=cut
1828
1829sub add_title {
1830 my ($self, $title) = @_;
1831
1832 $self->add_item ({
1833 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1834 text => $title,
1835 activate => sub { },
1836 });
1837}
1838
1839=item $popup->add_separator ([$sepchr])
1840
1841Creates a separator, optionally using the character given as C<$sepchr>.
1842
1843=cut
1291 1844
1292sub add_separator { 1845sub add_separator {
1293 my ($self, $sep) = @_; 1846 my ($self, $sep) = @_;
1294 1847
1295 $sep ||= "="; 1848 $sep ||= "=";
1300 render => sub { $sep x $self->{term}->ncol }, 1853 render => sub { $sep x $self->{term}->ncol },
1301 activate => sub { }, 1854 activate => sub { },
1302 }); 1855 });
1303} 1856}
1304 1857
1305sub add_title { 1858=item $popup->add_button ($text, $cb)
1306 my ($self, $title) = @_;
1307 1859
1308 $self->add_item ({ 1860Adds a clickable button to the popup. C<$cb> is called whenever it is
1309 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" }, 1861selected.
1310 text => $title, 1862
1311 activate => sub { }, 1863=cut
1312 });
1313}
1314 1864
1315sub add_button { 1865sub add_button {
1316 my ($self, $text, $cb) = @_; 1866 my ($self, $text, $cb) = @_;
1317 1867
1318 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1868 $self->add_item ({ type => "button", text => $text, activate => $cb});
1319} 1869}
1320 1870
1871=item $popup->add_toggle ($text, $initial_value, $cb)
1872
1873Adds a toggle/checkbox item to the popup. The callback gets called
1874whenever it gets toggled, with a boolean indicating its new value as its
1875first argument.
1876
1877=cut
1878
1321sub add_toggle { 1879sub add_toggle {
1322 my ($self, $text, $cb, $value) = @_; 1880 my ($self, $text, $value, $cb) = @_;
1323 1881
1324 my $item; $item = { 1882 my $item; $item = {
1325 type => "button", 1883 type => "button",
1326 text => " $text", 1884 text => " $text",
1327 value => $value, 1885 value => $value,
1328 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1886 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1329 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1887 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1330 }; 1888 };
1331 1889
1332 $self->add_item ($item); 1890 $self->add_item ($item);
1333} 1891}
1892
1893=item $popup->show
1894
1895Displays the popup (which is initially hidden).
1896
1897=cut
1334 1898
1335sub show { 1899sub show {
1336 my ($self) = @_; 1900 my ($self) = @_;
1337 1901
1338 local $urxvt::popup::self = $self; 1902 local $urxvt::popup::self = $self;
1339 1903
1904 my $env = $self->{term}->env;
1905 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1906 delete $env->{LC_ALL};
1340 local $ENV{LC_ALL} = $self->{term}->locale; 1907 $env->{LC_CTYPE} = $self->{term}->locale;
1341 1908
1342 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1909 urxvt::term->new ($env, "popup",
1910 "--perl-lib" => "", "--perl-ext-common" => "",
1911 "-pty-fd" => -1, "-sl" => 0,
1912 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1343 "--transient-for" => $self->{term}->parent, 1913 "--transient-for" => $self->{term}->parent,
1344 "-display" => $self->{term}->display_id, 1914 "-display" => $self->{term}->display_id,
1345 "-pe" => "urxvt-popup") 1915 "-pe" => "urxvt-popup")
1346 or die "unable to create popup window\n"; 1916 or die "unable to create popup window\n";
1347} 1917}
1348 1918
1349sub DESTROY { 1919sub DESTROY {
1350 my ($self) = @_; 1920 my ($self) = @_;
1351 1921
1352 delete $self->{term}{_destroy}{$self}; 1922 delete $self->{term}{_destroy}{$self};
1353 $self->{term}->ungrab; 1923 $self->{term}->ungrab;
1354} 1924}
1925
1926=back
1927
1928=cut
1929
1930package urxvt::watcher;
1931
1932@urxvt::timer::ISA = __PACKAGE__;
1933@urxvt::iow::ISA = __PACKAGE__;
1934@urxvt::pw::ISA = __PACKAGE__;
1935@urxvt::iw::ISA = __PACKAGE__;
1355 1936
1356=head2 The C<urxvt::timer> Class 1937=head2 The C<urxvt::timer> Class
1357 1938
1358This class implements timer watchers/events. Time is represented as a 1939This class implements timer watchers/events. Time is represented as a
1359fractional number of seconds since the epoch. Example: 1940fractional number of seconds since the epoch. Example:
1397Start the timer. 1978Start the timer.
1398 1979
1399=item $timer = $timer->start ($tstamp) 1980=item $timer = $timer->start ($tstamp)
1400 1981
1401Set the event trigger time to C<$tstamp> and start the timer. 1982Set the event trigger time to C<$tstamp> and start the timer.
1983
1984=item $timer = $timer->after ($delay)
1985
1986Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1402 1987
1403=item $timer = $timer->stop 1988=item $timer = $timer->stop
1404 1989
1405Stop the timer. 1990Stop the timer.
1406 1991
1435Set the callback to be called when io events are triggered. C<$reventmask> 2020Set the callback to be called when io events are triggered. C<$reventmask>
1436is a bitset as described in the C<events> method. 2021is a bitset as described in the C<events> method.
1437 2022
1438=item $iow = $iow->fd ($fd) 2023=item $iow = $iow->fd ($fd)
1439 2024
1440Set the filedescriptor (not handle) to watch. 2025Set the file descriptor (not handle) to watch.
1441 2026
1442=item $iow = $iow->events ($eventmask) 2027=item $iow = $iow->events ($eventmask)
1443 2028
1444Set the event mask to watch. The only allowed values are 2029Set the event mask to watch. The only allowed values are
1445C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed 2030C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1449 2034
1450Start watching for requested events on the given handle. 2035Start watching for requested events on the given handle.
1451 2036
1452=item $iow = $iow->stop 2037=item $iow = $iow->stop
1453 2038
1454Stop watching for events on the given filehandle. 2039Stop watching for events on the given file handle.
2040
2041=back
2042
2043=head2 The C<urxvt::iw> Class
2044
2045This class implements idle watchers, that get called automatically when
2046the process is idle. They should return as fast as possible, after doing
2047some useful work.
2048
2049=over 4
2050
2051=item $iw = new urxvt::iw
2052
2053Create a new idle watcher object in stopped state.
2054
2055=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2056
2057Set the callback to be called when the watcher triggers.
2058
2059=item $timer = $timer->start
2060
2061Start the watcher.
2062
2063=item $timer = $timer->stop
2064
2065Stop the watcher.
2066
2067=back
2068
2069=head2 The C<urxvt::pw> Class
2070
2071This class implements process watchers. They create an event whenever a
2072process exits, after which they stop automatically.
2073
2074 my $pid = fork;
2075 ...
2076 $term->{pw} = urxvt::pw
2077 ->new
2078 ->start ($pid)
2079 ->cb (sub {
2080 my ($pw, $exit_status) = @_;
2081 ...
2082 });
2083
2084=over 4
2085
2086=item $pw = new urxvt::pw
2087
2088Create a new process watcher in stopped state.
2089
2090=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2091
2092Set the callback to be called when the timer triggers.
2093
2094=item $pw = $timer->start ($pid)
2095
2096Tells the watcher to start watching for process C<$pid>.
2097
2098=item $pw = $pw->stop
2099
2100Stop the watcher.
1455 2101
1456=back 2102=back
1457 2103
1458=head1 ENVIRONMENT 2104=head1 ENVIRONMENT
1459 2105
1466 2112
1467=item == 0 - fatal messages 2113=item == 0 - fatal messages
1468 2114
1469=item >= 3 - script loading and management 2115=item >= 3 - script loading and management
1470 2116
1471=item >=10 - all events received 2117=item >=10 - all called hooks
2118
2119=item >=11 - hook return values
1472 2120
1473=back 2121=back
1474 2122
1475=head1 AUTHOR 2123=head1 AUTHOR
1476 2124

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