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Revision 1.93 by root, Fri Jan 13 07:03:48 2006 UTC vs.
Revision 1.148 by root, Tue Oct 3 21:41:07 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 the following bindable keyboard command: 82This extension also offers following bindable keyboard commands:
72 83
73=over 4 84=over 4
74 85
75=item rot13 86=item rot13
76 87
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.
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 };
93 140
94=item searchable-scrollback<hotkey> (enabled by default) 141=item searchable-scrollback<hotkey> (enabled by default)
95 142
96Adds regex search functionality to the scrollback buffer, triggered 143Adds regex search functionality to the scrollback buffer, triggered
97by 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
104bottom. 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
105was 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
106additionally stores the first match in the current line into the primary 153additionally stores the first match in the current line into the primary
107selection. 154selection.
108 155
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
109=item selection-autotransform 187=item selection-autotransform
110 188
111This selection allows you to do automatic transforms on a selection 189This selection allows you to do automatic transforms on a selection
112whenever a selection is made. 190whenever a selection is made.
113 191
125 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 203 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 204
127And this example matches the same,but replaces it with vi-commands you can 205And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 206paste directly into your (vi :) editor:
129 207
130 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 208 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131 209
132Of course, this can be modified to suit your needs and your editor :) 210Of course, this can be modified to suit your needs and your editor :)
133 211
134To expand the example above to typical perl error messages ("XXX at 212To expand the example above to typical perl error messages ("XXX at
135FILENAME line YYY."), you need a slightly more elaborate solution: 213FILENAME line YYY."), you need a slightly more elaborate solution:
136 214
137 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 215 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
138 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 216 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
139 217
140The 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
141every error message as a selection pattern, and the second line transforms 219every error message as a selection pattern, and the second line transforms
142the message into vi commands to load the file. 220the message into vi commands to load the file.
143 221
144=item mark-urls 222=item tabbed
145 223
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.
244
245=item matcher
246
146Uses per-line display filtering (C<on_line_update>) to underline urls and 247Uses per-line display filtering (C<on_line_update>) to underline text
147make them clickable. When middle-clicked, the program specified in the 248matching a certain pattern and make it clickable. When clicked with the
148resource C<urlLauncher> (default C<x-www-browser>) will be started with 249mouse button specified in the C<matcher.button> resource (default 2, or
149the URL as first argument. 250middle), the program specified in the C<matcher.launcher> resource
251(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
252with the matched text as first argument. The default configuration is
253suitable for matching URLs and launching a web browser, like the
254former "mark-urls" extension.
255
256The default pattern to match URLs can be overridden with the
257C<matcher.pattern.0> resource, and additional patterns can be specified
258with numbered patterns, in a manner similar to the "selection" extension.
259The launcher can also be overridden on a per-pattern basis.
260
261Example configuration:
262
263 URxvt.perl-ext: default,matcher
264 URxvt.urlLauncher: sensible-browser
265 URxvt.matcher.button: 1
266 URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
267 URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
268 URxvt.matcher.launcher.2: gvim +$2 $1
269
270=item xim-onthespot
271
272This (experimental) perl extension implements OnTheSpot editing. It does
273not work perfectly, and some input methods don't seem to work well with
274OnTheSpot editing in general, but it seems to work at leats for SCIM and
275kinput2.
276
277You enable it by specifying this extension and a preedit style of
278C<OnTheSpot>, i.e.:
279
280 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
281
282=item kuake<hotkey>
283
284A very primitive quake-console-like extension. It was inspired by a
285description of how the programs C<kuake> and C<yakuake> work: Whenever the
286user presses a global accelerator key (by default C<F10>), the terminal
287will show or hide itself. Another press of the accelerator key will hide
288or show it again.
289
290Initially, the window will not be shown when using this extension.
291
292This is useful if you need a single terminal thats not using any desktop
293space most of the time but is quickly available at the press of a key.
294
295The accelerator key is grabbed regardless of any modifiers, so this
296extension will actually grab a physical key just for this function.
297
298If you want a quake-like animation, tell your window manager to do so
299(fvwm can do it).
300
301=item automove-background
302
303This is basically a very small extension that dynamically changes the
304background pixmap offset to the window position, in effect creating the
305same effect as pseudo transparency with a custom pixmap. No scaling is
306supported in this mode. Example:
307
308 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
150 309
151=item block-graphics-to-ascii 310=item block-graphics-to-ascii
152 311
153A not very useful example of filtering all text output to the terminal, 312A not very useful example of filtering all text output to the terminal
154by replacing all line-drawing characters (U+2500 .. U+259F) by a 313by replacing all line-drawing characters (U+2500 .. U+259F) by a
155similar-looking ascii character. 314similar-looking ascii character.
156 315
157=item digital-clock 316=item digital-clock
158 317
159Displays a digital clock using the built-in overlay. 318Displays a digital clock using the built-in overlay.
319
320=item remote-clipboard
321
322Somewhat of a misnomer, this extension adds two menu entries to the
323selection popup that allows one ti run external commands to store the
324selection somewhere and fetch it again.
325
326We use it to implement a "distributed selection mechanism", which just
327means that one command uploads the file to a remote server, and another
328reads it.
329
330The commands can be set using the C<URxvt.remote-selection.store> and
331C<URxvt.remote-selection.fetch> resources. The first should read the
332selection to store from STDIN (always in UTF-8), the second should provide
333the selection data on STDOUT (also in UTF-8).
334
335The defaults (which are likely useless to you) use rsh and cat:
336
337 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
338 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
339
340=item selection-pastebin
341
342This is a little rarely useful extension that Uploads the selection as
343textfile to a remote site (or does other things). (The implementation is
344not currently secure for use in a multiuser environment as it writes to
345F</tmp> directly.).
346
347It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
348i.e.
349
350 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
351
352Pressing this combination runs a command with C<%> replaced by the name of
353the textfile. This command can be set via a resource:
354
355 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
356
357And the default is likely not useful to anybody but the few people around
358here :)
359
360The name of the textfile is the hex encoded md5 sum of the selection, so
361the same content should lead to the same filename.
362
363After a successful upload the selection will be replaced by the text given
364in the C<selection-pastebin-url> resource (again, the % is the placeholder
365for the filename):
366
367 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
368
369I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
370the double C</> characters as comment start. Use C<\057\057> instead,
371which works regardless of wether xrdb is used to parse the resource file
372or not.
160 373
161=item example-refresh-hooks 374=item example-refresh-hooks
162 375
163Displays a very simple digital clock in the upper right corner of the 376Displays a very simple digital clock in the upper right corner of the
164window. Illustrates overwriting the refresh callbacks to create your own 377window. Illustrates overwriting the refresh callbacks to create your own
204 417
205=back 418=back
206 419
207=head2 Extension Objects 420=head2 Extension Objects
208 421
209Very perl extension is a perl class. A separate perl object is created 422Every perl extension is a perl class. A separate perl object is created
210for each terminal and each extension and passed as the first parameter to 423for each terminal, and each terminal has its own set of extenion objects,
211hooks. So extensions can use their C<$self> object without having to think 424which are passed as the first parameter to hooks. So extensions can use
212about other extensions, with the exception of methods and members that 425their C<$self> object without having to think about clashes with other
426extensions or other terminals, with the exception of methods and members
213begin with an underscore character C<_>: these are reserved for internal 427that begin with an underscore character C<_>: these are reserved for
214use. 428internal use.
215 429
216Although it isn't a C<urxvt::term> object, you can call all methods of the 430Although it isn't a C<urxvt::term> object, you can call all methods of the
217C<urxvt::term> class on this object. 431C<urxvt::term> class on this object.
218 432
219It has the following methods and data members: 433It has the following methods and data members:
240=head2 Hooks 454=head2 Hooks
241 455
242The following subroutines can be declared in extension files, and will be 456The following subroutines can be declared in extension files, and will be
243called whenever the relevant event happens. 457called whenever the relevant event happens.
244 458
245The first argument passed to them is an extension oject as described in 459The first argument passed to them is an extension object as described in
246the in the C<Extension Objects> section. 460the in the C<Extension Objects> section.
247 461
248B<All> of these hooks must return a boolean value. If it is true, then the 462B<All> of these hooks must return a boolean value. If any of the called
249event counts as being I<consumed>, and the invocation of other hooks is 463hooks returns true, then the event counts as being I<consumed>, and the
250skipped, and the relevant action might not be carried out by the C++ code. 464relevant action might not be carried out by the C++ code.
251 465
252I<< When in doubt, return a false value (preferably C<()>). >> 466I<< When in doubt, return a false value (preferably C<()>). >>
253 467
254=over 4 468=over 4
255 469
256=item on_init $term 470=item on_init $term
257 471
258Called after a new terminal object has been initialized, but before 472Called after a new terminal object has been initialized, but before
259windows are created or the command gets run. Most methods are unsafe to 473windows are created or the command gets run. Most methods are unsafe to
260call or deliver senseless data, as terminal size and other characteristics 474call or deliver senseless data, as terminal size and other characteristics
261have not yet been determined. You can safely query and change resources, 475have not yet been determined. You can safely query and change resources
262though. 476and options, though. For many purposes the C<on_start> hook is a better
477place.
478
479=item on_start $term
480
481Called at the very end of initialisation of a new terminal, just before
482trying to map (display) the toplevel and returning to the main loop.
483
484=item on_destroy $term
485
486Called whenever something tries to destroy terminal, when the terminal is
487still fully functional (not for long, though).
263 488
264=item on_reset $term 489=item on_reset $term
265 490
266Called after the screen is "reset" for any reason, such as resizing or 491Called after the screen is "reset" for any reason, such as resizing or
267control sequences. Here is where you can react on changes to size-related 492control sequences. Here is where you can react on changes to size-related
268variables. 493variables.
269 494
270=item on_start $term 495=item on_child_start $term, $pid
271 496
272Called at the very end of initialisation of a new terminal, just before 497Called just after the child process has been C<fork>ed.
273returning to the mainloop. 498
499=item on_child_exit $term, $status
500
501Called just after the child process has exited. C<$status> is the status
502from C<waitpid>.
274 503
275=item on_sel_make $term, $eventtime 504=item on_sel_make $term, $eventtime
276 505
277Called whenever a selection has been made by the user, but before the 506Called whenever a selection has been made by the user, but before the
278selection text is copied, so changes to the beginning, end or type of the 507selection text is copied, so changes to the beginning, end or type of the
285 514
286Called whenever a selection has been copied, but before the selection is 515Called whenever a selection has been copied, but before the selection is
287requested from the server. The selection text can be queried and changed 516requested from the server. The selection text can be queried and changed
288by calling C<< $term->selection >>. 517by calling C<< $term->selection >>.
289 518
290Returning a true value aborts selection grabbing. It will still be hilighted. 519Returning a true value aborts selection grabbing. It will still be highlighted.
291 520
292=item on_sel_extend $term 521=item on_sel_extend $term
293 522
294Called whenever the user tries to extend the selection (e.g. with a double 523Called whenever the user tries to extend the selection (e.g. with a double
295click) and is either supposed to return false (normal operation), or 524click) and is either supposed to return false (normal operation), or
296should extend the selection itelf and return true to suppress the built-in 525should extend the selection itself and return true to suppress the built-in
297processing. This can happen multiple times, as long as the callback 526processing. This can happen multiple times, as long as the callback
298returns true, it will be called on every further click by the user and is 527returns true, it will be called on every further click by the user and is
299supposed to enlarge the selection more and more, if possible. 528supposed to enlarge the selection more and more, if possible.
300 529
301See the F<selection> example extension. 530See the F<selection> example extension.
302 531
303=item on_view_change $term, $offset 532=item on_view_change $term, $offset
304 533
305Called whenever the view offset changes, i..e the user or program 534Called whenever the view offset changes, i.e. the user or program
306scrolls. Offset C<0> means display the normal terminal, positive values 535scrolls. Offset C<0> means display the normal terminal, positive values
307show this many lines of scrollback. 536show this many lines of scrollback.
308 537
309=item on_scroll_back $term, $lines, $saved 538=item on_scroll_back $term, $lines, $saved
310 539
314 543
315It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 544It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
316$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 545$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
317number of lines that will be in the scrollback buffer. 546number of lines that will be in the scrollback buffer.
318 547
548=item on_osc_seq $term, $op, $args
549
550Called on every OSC sequence and can be used to suppress it or modify its
551behaviour. The default should be to return an empty list. A true value
552suppresses execution of the request completely. Make sure you don't get
553confused by recursive invocations when you output an osc sequence within
554this callback.
555
556C<on_osc_seq_perl> should be used for new behaviour.
557
319=item on_osc_seq $term, $string 558=item on_osc_seq_perl $term, $string
320 559
321Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 560Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
322operating system command) is processed. Cursor position and other state 561operating system command) is processed. Cursor position and other state
323information is up-to-date when this happens. For interoperability, the 562information is up-to-date when this happens. For interoperability, the
324string should start with the extension name and a colon, to distinguish 563string should start with the extension name and a colon, to distinguish
325it from commands for other extensions, and this might be enforced in the 564it from commands for other extensions, and this might be enforced in the
326future. 565future.
327 566
328Be careful not ever to trust (in a security sense) the data you receive, 567Be careful not ever to trust (in a security sense) the data you receive,
329as its source can not easily be controleld (e-mail content, messages from 568as its source can not easily be controlled (e-mail content, messages from
330other users on the same system etc.). 569other users on the same system etc.).
331 570
332=item on_add_lines $term, $string 571=item on_add_lines $term, $string
333 572
334Called whenever text is about to be output, with the text as argument. You 573Called whenever text is about to be output, with the text as argument. You
365 604
366=item on_refresh_end $term 605=item on_refresh_end $term
367 606
368Called just after the screen gets redrawn. See C<on_refresh_begin>. 607Called just after the screen gets redrawn. See C<on_refresh_begin>.
369 608
370=item on_keyboard_command $term, $string 609=item on_user_command $term, $string
371 610
372Called whenever the user presses a key combination that has a 611Called whenever a user-configured event is being activated (e.g. via
373C<perl:string> action bound to it (see description of the B<keysym> 612a C<perl:string> action bound to a key, see description of the B<keysym>
374resource in the @@RXVT_NAME@@(1) manpage). 613resource in the @@RXVT_NAME@@(1) manpage).
614
615The event is simply the action string. This interface is assumed to change
616slightly in the future.
617
618=item on_resize_all_windows $tern, $new_width, $new_height
619
620Called just after the new window size has been calculated, but before
621windows are actually being resized or hints are being set. If this hook
622returns TRUE, setting of the window hints is being skipped.
375 623
376=item on_x_event $term, $event 624=item on_x_event $term, $event
377 625
378Called on every X event received on the vt window (and possibly other 626Called on every X event received on the vt window (and possibly other
379windows). Should only be used as a last resort. Most event structure 627windows). Should only be used as a last resort. Most event structure
380members are not passed. 628members are not passed.
381 629
630=item on_root_event $term, $event
631
632Like C<on_x_event>, but is called for events on the root window.
633
382=item on_focus_in $term 634=item on_focus_in $term
383 635
384Called whenever the window gets the keyboard focus, before rxvt-unicode 636Called whenever the window gets the keyboard focus, before rxvt-unicode
385does focus in processing. 637does focus in processing.
386 638
387=item on_focus_out $term 639=item on_focus_out $term
388 640
389Called wheneever the window loses keyboard focus, before rxvt-unicode does 641Called whenever the window loses keyboard focus, before rxvt-unicode does
390focus out processing. 642focus out processing.
643
644=item on_configure_notify $term, $event
645
646=item on_property_notify $term, $event
391 647
392=item on_key_press $term, $event, $keysym, $octets 648=item on_key_press $term, $event, $keysym, $octets
393 649
394=item on_key_release $term, $event, $keysym 650=item on_key_release $term, $event, $keysym
395 651
405 661
406Called whenever the corresponding X event is received for the terminal If 662Called whenever the corresponding X event is received for the terminal If
407the hook returns true, then the even will be ignored by rxvt-unicode. 663the hook returns true, then the even will be ignored by rxvt-unicode.
408 664
409The event is a hash with most values as named by Xlib (see the XEvent 665The event is a hash with most values as named by Xlib (see the XEvent
410manpage), with the additional members C<row> and C<col>, which are the row 666manpage), with the additional members C<row> and C<col>, which are the
411and column under the mouse cursor. 667(real, not screen-based) row and column under the mouse cursor.
412 668
413C<on_key_press> additionally receives the string rxvt-unicode would 669C<on_key_press> additionally receives the string rxvt-unicode would
414output, if any, in locale-specific encoding. 670output, if any, in locale-specific encoding.
415 671
416subwindow. 672subwindow.
673
674=item on_client_message $term, $event
675
676=item on_wm_protocols $term, $event
677
678=item on_wm_delete_window $term, $event
679
680Called when various types of ClientMessage events are received (all with
681format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
417 682
418=back 683=back
419 684
420=cut 685=cut
421 686
427use Scalar::Util (); 692use Scalar::Util ();
428use List::Util (); 693use List::Util ();
429 694
430our $VERSION = 1; 695our $VERSION = 1;
431our $TERM; 696our $TERM;
697our @TERM_INIT;
698our @TERM_EXT;
432our @HOOKNAME; 699our @HOOKNAME;
433our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 700our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
434our %OPTION; 701our %OPTION;
435 702
436our $LIBDIR; 703our $LIBDIR;
437our $RESNAME; 704our $RESNAME;
438our $RESCLASS; 705our $RESCLASS;
439our $RXVTNAME; 706our $RXVTNAME;
440 707
708our $NOCHAR = chr 0xffff;
709
441=head2 Variables in the C<urxvt> Package 710=head2 Variables in the C<urxvt> Package
442 711
443=over 4 712=over 4
444 713
445=item $urxvt::LIBDIR 714=item $urxvt::LIBDIR
457 726
458=item $urxvt::TERM 727=item $urxvt::TERM
459 728
460The current terminal. This variable stores the current C<urxvt::term> 729The current terminal. This variable stores the current C<urxvt::term>
461object, whenever a callback/hook is executing. 730object, whenever a callback/hook is executing.
731
732=item @urxvt::TERM_INIT
733
734All code references in this array will be called as methods of the next newly
735created C<urxvt::term> object (during the C<on_init> phase). The array
736gets cleared before the code references that were in it are being executed,
737so references can push themselves onto it again if they so desire.
738
739This complements to the perl-eval command line option, but gets executed
740first.
741
742=item @urxvt::TERM_EXT
743
744Works similar to C<@TERM_INIT>, but contains perl package/class names, which
745get registered as normal extensions after calling the hooks in C<@TERM_INIT>
746but before other extensions. Gets cleared just like C<@TERM_INIT>.
462 747
463=back 748=back
464 749
465=head2 Functions in the C<urxvt> Package 750=head2 Functions in the C<urxvt> Package
466 751
481Using this function has the advantage that its output ends up in the 766Using this function has the advantage that its output ends up in the
482correct place, e.g. on stderr of the connecting urxvtc client. 767correct place, e.g. on stderr of the connecting urxvtc client.
483 768
484Messages have a size limit of 1023 bytes currently. 769Messages have a size limit of 1023 bytes currently.
485 770
486=item $is_safe = urxvt::safe 771=item @terms = urxvt::termlist
487 772
488Returns true when it is safe to do potentially unsafe things, such as 773Returns all urxvt::term objects that exist in this process, regardless of
489evaluating perl code specified by the user. This is true when urxvt was 774whether they are started, being destroyed etc., so be careful. Only term
490started setuid or setgid. 775objects that have perl extensions attached will be returned (because there
776is no urxvt::term objet associated with others).
491 777
492=item $time = urxvt::NOW 778=item $time = urxvt::NOW
493 779
494Returns the "current time" (as per the event loop). 780Returns the "current time" (as per the event loop).
495 781
554 840
555=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour 841=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
556 842
557=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour 843=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
558 844
845=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
846
559Replace the foreground/background colour in the rendition mask with the 847Replace the foreground/background colour in the rendition mask with the
560specified one. 848specified one.
561 849
562=item $value = urxvt::GET_CUSTOM $rend 850=item $value = urxvt::GET_CUSTOM $rend
563 851
572=back 860=back
573 861
574=cut 862=cut
575 863
576BEGIN { 864BEGIN {
577 urxvt->bootstrap;
578
579 # overwrite perl's warn 865 # overwrite perl's warn
580 *CORE::GLOBAL::warn = sub { 866 *CORE::GLOBAL::warn = sub {
581 my $msg = join "", @_; 867 my $msg = join "", @_;
582 $msg .= "\n" 868 $msg .= "\n"
583 unless $msg =~ /\n$/; 869 unless $msg =~ /\n$/;
584 urxvt::warn ($msg); 870 urxvt::warn ($msg);
585 }; 871 };
586
587 # %ENV is the original startup environment
588 delete $ENV{IFS};
589 delete $ENV{CDPATH};
590 delete $ENV{BASH_ENV};
591 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
592} 872}
873
874no warnings 'utf8';
593 875
594my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 876my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
595 877
596sub verbose { 878sub verbose {
597 my ($level, $msg) = @_; 879 my ($level, $msg) = @_;
598 warn "$msg\n" if $level <= $verbosity; 880 warn "$msg\n" if $level <= $verbosity;
599} 881}
600 882
601my $extension_pkg = "extension0000";
602my %extension_pkg; 883my %extension_pkg;
603 884
604# load a single script into its own package, once only 885# load a single script into its own package, once only
605sub extension_package($) { 886sub extension_package($) {
606 my ($path) = @_; 887 my ($path) = @_;
607 888
608 $extension_pkg{$path} ||= do { 889 $extension_pkg{$path} ||= do {
609 my $pkg = "urxvt::" . ($extension_pkg++); 890 $path =~ /([^\/\\]+)$/;
891 my $pkg = $1;
892 $pkg =~ s/[^[:word:]]/_/g;
893 $pkg = "urxvt::ext::$pkg";
610 894
611 verbose 3, "loading extension '$path' into package '$pkg'"; 895 verbose 3, "loading extension '$path' into package '$pkg'";
612 896
613 open my $fh, "<:raw", $path 897 open my $fh, "<:raw", $path
614 or die "$path: $!"; 898 or die "$path: $!";
615 899
616 my $source = untaint 900 my $source =
617 "package $pkg; use strict; use utf8;\n" 901 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
618 . "use base urxvt::term::extension::;\n"
619 . "#line 1 \"$path\"\n{\n" 902 . "#line 1 \"$path\"\n{\n"
620 . (do { local $/; <$fh> }) 903 . (do { local $/; <$fh> })
621 . "\n};\n1"; 904 . "\n};\n1";
622 905
623 eval $source 906 eval $source
637 if ($htype == 0) { # INIT 920 if ($htype == 0) { # INIT
638 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 921 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
639 922
640 my %ext_arg; 923 my %ext_arg;
641 924
925 {
926 my @init = @TERM_INIT;
927 @TERM_INIT = ();
928 $_->($TERM) for @init;
929 my @pkg = @TERM_EXT;
930 @TERM_EXT = ();
931 $TERM->register_package ($_) for @pkg;
932 }
933
642 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 934 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
643 if ($_ eq "default") { 935 if ($_ eq "default") {
644 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 936 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
645 } elsif (/^-(.*)$/) { 937 } elsif (/^-(.*)$/) {
646 delete $ext_arg{$1}; 938 delete $ext_arg{$1};
647 } elsif (/^([^<]+)<(.*)>$/) { 939 } elsif (/^([^<]+)<(.*)>$/) {
648 push @{ $ext_arg{$1} }, $2; 940 push @{ $ext_arg{$1} }, $2;
649 } else { 941 } else {
650 $ext_arg{$_} ||= []; 942 $ext_arg{$_} ||= [];
651 } 943 }
652 } 944 }
653 945
654 while (my ($ext, $argv) = each %ext_arg) { 946 for my $ext (sort keys %ext_arg) {
655 my @files = grep -f $_, map "$_/$ext", @dirs; 947 my @files = grep -f $_, map "$_/$ext", @dirs;
656 948
657 if (@files) { 949 if (@files) {
658 $TERM->register_package (extension_package $files[0], $argv); 950 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
659 } else { 951 } else {
660 warn "perl extension '$ext' not found in perl library search path\n"; 952 warn "perl extension '$ext' not found in perl library search path\n";
661 } 953 }
662 } 954 }
663 955
669 961
670 if (my $cb = $TERM->{_hook}[$htype]) { 962 if (my $cb = $TERM->{_hook}[$htype]) {
671 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 963 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
672 if $verbosity >= 10; 964 if $verbosity >= 10;
673 965
674 keys %$cb; 966 for my $pkg (keys %$cb) {
675
676 while (my ($pkg, $cb) = each %$cb) {
677 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 967 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
678 and last; 968 $retval ||= $retval_;
679 969
680 if ($@) { 970 if ($@) {
681 $TERM->ungrab; # better to lose the grab than the session 971 $TERM->ungrab; # better to lose the grab than the session
682 warn $@; 972 warn $@;
683 } 973 }
696 } 986 }
697 987
698 $retval 988 $retval
699} 989}
700 990
701sub exec_async(@) { 991sub SET_COLOR($$$) {
702 my $pid = fork; 992 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
703
704 return
705 if !defined $pid or $pid;
706
707 %ENV = %{ $TERM->env };
708
709 exec @_;
710 _exit 255;
711} 993}
712 994
713# urxvt::term::extension 995# urxvt::term::extension
714 996
715package urxvt::term::extension; 997package urxvt::term::extension;
854# find on_xxx subs in the package and register them 1136# find on_xxx subs in the package and register them
855# as hooks 1137# as hooks
856sub register_package { 1138sub register_package {
857 my ($self, $pkg, $argv) = @_; 1139 my ($self, $pkg, $argv) = @_;
858 1140
1141 no strict 'refs';
1142
1143 urxvt::verbose 6, "register package $pkg to $self";
1144
1145 @{"$pkg\::ISA"} = urxvt::term::extension::;
1146
859 my $proxy = bless { 1147 my $proxy = bless {
860 _pkg => $pkg, 1148 _pkg => $pkg,
861 argv => $argv, 1149 argv => $argv,
862 }, $pkg; 1150 }, $pkg;
863 Scalar::Util::weaken ($proxy->{term} = $self); 1151 Scalar::Util::weaken ($proxy->{term} = $self);
878hash which defines the environment of the new terminal. 1166hash which defines the environment of the new terminal.
879 1167
880Croaks (and probably outputs an error message) if the new instance 1168Croaks (and probably outputs an error message) if the new instance
881couldn't be created. Returns C<undef> if the new instance didn't 1169couldn't be created. Returns C<undef> if the new instance didn't
882initialise perl, and the terminal object otherwise. The C<init> and 1170initialise perl, and the terminal object otherwise. The C<init> and
883C<start> hooks will be called during this call. 1171C<start> hooks will be called before this call returns, and are free to
1172refer to global data (which is race free).
884 1173
885=cut 1174=cut
886 1175
887sub new { 1176sub new {
888 my ($class, $env, @args) = @_; 1177 my ($class, $env, @args) = @_;
889 1178
1179 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1180 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1181
890 _new ([ map "$_=$env->{$_}", keys %$env ], @args); 1182 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
891} 1183}
892 1184
893=item $term->destroy 1185=item $term->destroy
894 1186
895Destroy the terminal object (close the window, free resources 1187Destroy the terminal object (close the window, free resources
896etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1188etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
897watchers (timers, io watchers) are still active. 1189watchers (timers, io watchers) are still active.
898 1190
1191=item $term->exec_async ($cmd[, @args])
1192
1193Works like the combination of the C<fork>/C<exec> builtins, which executes
1194("starts") programs in the background. This function takes care of setting
1195the user environment before exec'ing the command (e.g. C<PATH>) and should
1196be preferred over explicit calls to C<exec> or C<system>.
1197
1198Returns the pid of the subprocess or C<undef> on error.
1199
1200=cut
1201
1202sub exec_async {
1203 my $self = shift;
1204
1205 my $pid = fork;
1206
1207 return $pid
1208 if !defined $pid or $pid;
1209
1210 %ENV = %{ $self->env };
1211
1212 exec @_;
1213 urxvt::_exit 255;
1214}
1215
899=item $isset = $term->option ($optval[, $set]) 1216=item $isset = $term->option ($optval[, $set])
900 1217
901Returns true if the option specified by C<$optval> is enabled, and 1218Returns true if the option specified by C<$optval> is enabled, and
902optionally change it. All option values are stored by name in the hash 1219optionally change it. All option values are stored by name in the hash
903C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1220C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
904 1221
905Here is a a likely non-exhaustive list of option names, please see the 1222Here is a likely non-exhaustive list of option names, please see the
906source file F</src/optinc.h> to see the actual list: 1223source file F</src/optinc.h> to see the actual list:
907 1224
908 borderLess console cursorBlink cursorUnderline hold iconic insecure 1225 borderLess console cursorBlink cursorUnderline hold iconic insecure
909 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1226 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
910 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1227 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
911 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1228 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
912 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1229 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
913 tripleclickwords utmpInhibit visualBell 1230 transparent tripleclickwords utmpInhibit visualBell
914 1231
915=item $value = $term->resource ($name[, $newval]) 1232=item $value = $term->resource ($name[, $newval])
916 1233
917Returns the current resource value associated with a given name and 1234Returns the current resource value associated with a given name and
918optionally sets a new value. Setting values is most useful in the C<init> 1235optionally sets a new value. Setting values is most useful in the C<init>
927likely change). 1244likely change).
928 1245
929Please note that resource strings will currently only be freed when the 1246Please note that resource strings will currently only be freed when the
930terminal is destroyed, so changing options frequently will eat memory. 1247terminal is destroyed, so changing options frequently will eat memory.
931 1248
932Here is a a likely non-exhaustive list of resource names, not all of which 1249Here is a likely non-exhaustive list of resource names, not all of which
933are supported in every build, please see the source file F</src/rsinc.h> 1250are supported in every build, please see the source file F</src/rsinc.h>
934to see the actual list: 1251to see the actual list:
935 1252
936 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1253 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
937 borderLess color cursorBlink cursorUnderline cutchars delete_key 1254 borderLess color cursorBlink cursorUnderline cutchars delete_key
938 display_name embed ext_bwidth fade font geometry hold iconName 1255 display_name embed ext_bwidth fade font geometry hold iconName
939 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1256 imFont imLocale inputMethod insecure int_bwidth intensityStyles
940 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1257 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
941 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1258 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
942 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1259 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
943 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1260 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
944 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1261 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
945 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1262 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
946 shade term_name title transparent transparent_all tripleclickwords 1263 secondaryScreen secondaryScroll selectstyle shade term_name title
947 utmpInhibit visualBell 1264 transient_for transparent transparent_all tripleclickwords utmpInhibit
1265 visualBell
948 1266
949=cut 1267=cut
950 1268
951sub resource($$;$) { 1269sub resource($$;$) {
952 my ($self, $name) = (shift, shift); 1270 my ($self, $name) = (shift, shift);
1126 1444
1127Normally its not a good idea to use this function, as programs might be 1445Normally its not a good idea to use this function, as programs might be
1128confused by changes in cursor position or scrolling. Its useful inside a 1446confused by changes in cursor position or scrolling. Its useful inside a
1129C<on_add_lines> hook, though. 1447C<on_add_lines> hook, though.
1130 1448
1449=item $term->scr_change_screen ($screen)
1450
1451Switch to given screen - 0 primary, 1 secondary.
1452
1131=item $term->cmd_parse ($octets) 1453=item $term->cmd_parse ($octets)
1132 1454
1133Similar to C<scr_add_lines>, but the argument must be in the 1455Similar to C<scr_add_lines>, but the argument must be in the
1134locale-specific encoding of the terminal and can contain command sequences 1456locale-specific encoding of the terminal and can contain command sequences
1135(escape codes) that will be interpreted. 1457(escape codes) that will be interpreted.
1145Replaces the event mask of the pty watcher by the given event mask. Can 1467Replaces the event mask of the pty watcher by the given event mask. Can
1146be used to suppress input and output handling to the pty/tty. See the 1468be used to suppress input and output handling to the pty/tty. See the
1147description of C<< urxvt::timer->events >>. Make sure to always restore 1469description of C<< urxvt::timer->events >>. Make sure to always restore
1148the previous value. 1470the previous value.
1149 1471
1472=item $fd = $term->pty_fd
1473
1474Returns the master file descriptor for the pty in use, or C<-1> if no pty
1475is used.
1476
1150=item $windowid = $term->parent 1477=item $windowid = $term->parent
1151 1478
1152Return the window id of the toplevel window. 1479Return the window id of the toplevel window.
1153 1480
1154=item $windowid = $term->vt 1481=item $windowid = $term->vt
1160Adds the specified events to the vt event mask. Useful e.g. when you want 1487Adds the specified events to the vt event mask. Useful e.g. when you want
1161to receive pointer events all the times: 1488to receive pointer events all the times:
1162 1489
1163 $term->vt_emask_add (urxvt::PointerMotionMask); 1490 $term->vt_emask_add (urxvt::PointerMotionMask);
1164 1491
1492=item $term->focus_in
1493
1494=item $term->focus_out
1495
1496=item $term->key_press ($state, $keycode[, $time])
1497
1498=item $term->key_release ($state, $keycode[, $time])
1499
1500Deliver various fake events to to terminal.
1501
1165=item $window_width = $term->width 1502=item $window_width = $term->width
1166 1503
1167=item $window_height = $term->height 1504=item $window_height = $term->height
1168 1505
1169=item $font_width = $term->fwidth 1506=item $font_width = $term->fwidth
1182 1519
1183=item $max_scrollback = $term->saveLines 1520=item $max_scrollback = $term->saveLines
1184 1521
1185=item $nrow_plus_saveLines = $term->total_rows 1522=item $nrow_plus_saveLines = $term->total_rows
1186 1523
1187=item $lines_in_scrollback = $term->nsaved 1524=item $topmost_scrollback_row = $term->top_row
1188 1525
1189Return various integers describing terminal characteristics. 1526Return various integers describing terminal characteristics.
1190 1527
1191=item $x_display = $term->display_id 1528=item $x_display = $term->display_id
1192 1529
1199=item $env = $term->env 1536=item $env = $term->env
1200 1537
1201Returns a copy of the environment in effect for the terminal as a hashref 1538Returns a copy of the environment in effect for the terminal as a hashref
1202similar to C<\%ENV>. 1539similar to C<\%ENV>.
1203 1540
1541=item @envv = $term->envv
1542
1543Returns the environment as array of strings of the form C<VAR=VALUE>.
1544
1545=item @argv = $term->argv
1546
1547Return the argument vector as this terminal, similar to @ARGV, but
1548includes the program name as first element.
1549
1204=cut 1550=cut
1205 1551
1206sub env { 1552sub env {
1207 if (my $env = $_[0]->_env) {
1208 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env } 1553 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1209 } else {
1210 +{ %ENV }
1211 }
1212} 1554}
1213 1555
1214=item $modifiermask = $term->ModLevel3Mask 1556=item $modifiermask = $term->ModLevel3Mask
1215 1557
1216=item $modifiermask = $term->ModMetaMask 1558=item $modifiermask = $term->ModMetaMask
1218=item $modifiermask = $term->ModNumLockMask 1560=item $modifiermask = $term->ModNumLockMask
1219 1561
1220Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1562Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1221AltGr), the meta key (often Alt) and the num lock key, if applicable. 1563AltGr), the meta key (often Alt) and the num lock key, if applicable.
1222 1564
1565=item $screen = $term->current_screen
1566
1567Returns the currently displayed screen (0 primary, 1 secondary).
1568
1569=item $cursor_is_hidden = $term->hidden_cursor
1570
1571Returns whether the cursor is currently hidden or not.
1572
1223=item $view_start = $term->view_start ([$newvalue]) 1573=item $view_start = $term->view_start ([$newvalue])
1224 1574
1225Returns the negative row number of the topmost line. Minimum value is 1575Returns the row number of the topmost displayed line. Maximum value is
1226C<0>, which displays the normal terminal contents. Larger values scroll 1576C<0>, which displays the normal terminal contents. Lower values scroll
1227this many lines into the scrollback buffer. 1577this many lines into the scrollback buffer.
1228 1578
1229=item $term->want_refresh 1579=item $term->want_refresh
1230 1580
1231Requests a screen refresh. At the next opportunity, rxvt-unicode will 1581Requests a screen refresh. At the next opportunity, rxvt-unicode will
1246line, starting at column C<$start_col> (default C<0>), which is useful 1596line, starting at column C<$start_col> (default C<0>), which is useful
1247to replace only parts of a line. The font index in the rendition will 1597to replace only parts of a line. The font index in the rendition will
1248automatically be updated. 1598automatically be updated.
1249 1599
1250C<$text> is in a special encoding: tabs and wide characters that use more 1600C<$text> is in a special encoding: tabs and wide characters that use more
1251than one cell when displayed are padded with urxvt::NOCHAR characters 1601than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1252(C<chr 65535>). Characters with combining characters and other characters 1602characters. Characters with combining characters and other characters that
1253that do not fit into the normal tetx encoding will be replaced with 1603do not fit into the normal tetx encoding will be replaced with characters
1254characters in the private use area. 1604in the private use area.
1255 1605
1256You have to obey this encoding when changing text. The advantage is 1606You have to obey this encoding when changing text. The advantage is
1257that C<substr> and similar functions work on screen cells and not on 1607that C<substr> and similar functions work on screen cells and not on
1258characters. 1608characters.
1259 1609
1403where one character corresponds to one screen cell. See 1753where one character corresponds to one screen cell. See
1404C<< $term->ROW_t >> for details. 1754C<< $term->ROW_t >> for details.
1405 1755
1406=item $string = $term->special_decode $text 1756=item $string = $term->special_decode $text
1407 1757
1408Converts rxvt-unicodes text reprsentation into a perl string. See 1758Converts rxvt-unicodes text representation into a perl string. See
1409C<< $term->ROW_t >> for details. 1759C<< $term->ROW_t >> for details.
1410 1760
1411=item $success = $term->grab_button ($button, $modifiermask) 1761=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1412 1762
1763=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1764
1413Registers a synchronous button grab. See the XGrabButton manpage. 1765Register/unregister a synchronous button grab. See the XGrabButton
1766manpage.
1414 1767
1415=item $success = $term->grab ($eventtime[, $sync]) 1768=item $success = $term->grab ($eventtime[, $sync])
1416 1769
1417Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1770Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1418synchronous (C<$sync> is true). Also remembers the grab timestampe. 1771synchronous (C<$sync> is true). Also remembers the grab timestamp.
1419 1772
1420=item $term->allow_events_async 1773=item $term->allow_events_async
1421 1774
1422Calls XAllowEvents with AsyncBoth for the most recent grab. 1775Calls XAllowEvents with AsyncBoth for the most recent grab.
1423 1776
1433=item $term->ungrab 1786=item $term->ungrab
1434 1787
1435Calls XUngrab for the most recent grab. Is called automatically on 1788Calls XUngrab for the most recent grab. Is called automatically on
1436evaluation errors, as it is better to lose the grab in the error case as 1789evaluation errors, as it is better to lose the grab in the error case as
1437the session. 1790the session.
1791
1792=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1793
1794=item $atom_name = $term->XGetAtomName ($atom)
1795
1796=item @atoms = $term->XListProperties ($window)
1797
1798=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1799
1800=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1801
1802=item $term->XDeleteProperty ($window, $property)
1803
1804=item $window = $term->DefaultRootWindow
1805
1806=item $term->XReparentWindow ($window, $parent, [$x, $y])
1807
1808=item $term->XMapWindow ($window)
1809
1810=item $term->XUnmapWindow ($window)
1811
1812=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1813
1814=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1815
1816=item $term->XChangeInput ($window, $add_events[, $del_events])
1817
1818Various X or X-related functions. The C<$term> object only serves as
1819the source of the display, otherwise those functions map more-or-less
1820directory onto the X functions of the same name.
1438 1821
1439=back 1822=back
1440 1823
1441=cut 1824=cut
1442 1825
1506 my ($self, $text, $cb) = @_; 1889 my ($self, $text, $cb) = @_;
1507 1890
1508 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1891 $self->add_item ({ type => "button", text => $text, activate => $cb});
1509} 1892}
1510 1893
1511=item $popup->add_toggle ($text, $cb, $initial_value) 1894=item $popup->add_toggle ($text, $initial_value, $cb)
1512 1895
1513Adds a toggle/checkbox item to the popup. Teh callback gets called 1896Adds a toggle/checkbox item to the popup. The callback gets called
1514whenever it gets toggled, with a boolean indicating its value as its first 1897whenever it gets toggled, with a boolean indicating its new value as its
1515argument. 1898first argument.
1516 1899
1517=cut 1900=cut
1518 1901
1519sub add_toggle { 1902sub add_toggle {
1520 my ($self, $text, $cb, $value) = @_; 1903 my ($self, $text, $value, $cb) = @_;
1521 1904
1522 my $item; $item = { 1905 my $item; $item = {
1523 type => "button", 1906 type => "button",
1524 text => " $text", 1907 text => " $text",
1525 value => $value, 1908 value => $value,
1544 my $env = $self->{term}->env; 1927 my $env = $self->{term}->env;
1545 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1928 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1546 delete $env->{LC_ALL}; 1929 delete $env->{LC_ALL};
1547 $env->{LC_CTYPE} = $self->{term}->locale; 1930 $env->{LC_CTYPE} = $self->{term}->locale;
1548 1931
1549 urxvt::term->new ($env, $self->{term}->resource ("name"), 1932 urxvt::term->new ($env, "popup",
1550 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1933 "--perl-lib" => "", "--perl-ext-common" => "",
1934 "-pty-fd" => -1, "-sl" => 0,
1935 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1551 "--transient-for" => $self->{term}->parent, 1936 "--transient-for" => $self->{term}->parent,
1552 "-display" => $self->{term}->display_id, 1937 "-display" => $self->{term}->display_id,
1553 "-pe" => "urxvt-popup") 1938 "-pe" => "urxvt-popup")
1554 or die "unable to create popup window\n"; 1939 or die "unable to create popup window\n";
1555} 1940}
1560 delete $self->{term}{_destroy}{$self}; 1945 delete $self->{term}{_destroy}{$self};
1561 $self->{term}->ungrab; 1946 $self->{term}->ungrab;
1562} 1947}
1563 1948
1564=back 1949=back
1950
1951=cut
1952
1953package urxvt::watcher;
1954
1955@urxvt::timer::ISA = __PACKAGE__;
1956@urxvt::iow::ISA = __PACKAGE__;
1957@urxvt::pw::ISA = __PACKAGE__;
1958@urxvt::iw::ISA = __PACKAGE__;
1565 1959
1566=head2 The C<urxvt::timer> Class 1960=head2 The C<urxvt::timer> Class
1567 1961
1568This class implements timer watchers/events. Time is represented as a 1962This class implements timer watchers/events. Time is represented as a
1569fractional number of seconds since the epoch. Example: 1963fractional number of seconds since the epoch. Example:
1607Start the timer. 2001Start the timer.
1608 2002
1609=item $timer = $timer->start ($tstamp) 2003=item $timer = $timer->start ($tstamp)
1610 2004
1611Set the event trigger time to C<$tstamp> and start the timer. 2005Set the event trigger time to C<$tstamp> and start the timer.
2006
2007=item $timer = $timer->after ($delay)
2008
2009Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1612 2010
1613=item $timer = $timer->stop 2011=item $timer = $timer->stop
1614 2012
1615Stop the timer. 2013Stop the timer.
1616 2014
1645Set the callback to be called when io events are triggered. C<$reventmask> 2043Set the callback to be called when io events are triggered. C<$reventmask>
1646is a bitset as described in the C<events> method. 2044is a bitset as described in the C<events> method.
1647 2045
1648=item $iow = $iow->fd ($fd) 2046=item $iow = $iow->fd ($fd)
1649 2047
1650Set the filedescriptor (not handle) to watch. 2048Set the file descriptor (not handle) to watch.
1651 2049
1652=item $iow = $iow->events ($eventmask) 2050=item $iow = $iow->events ($eventmask)
1653 2051
1654Set the event mask to watch. The only allowed values are 2052Set the event mask to watch. The only allowed values are
1655C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed 2053C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1659 2057
1660Start watching for requested events on the given handle. 2058Start watching for requested events on the given handle.
1661 2059
1662=item $iow = $iow->stop 2060=item $iow = $iow->stop
1663 2061
1664Stop watching for events on the given filehandle. 2062Stop watching for events on the given file handle.
2063
2064=back
2065
2066=head2 The C<urxvt::iw> Class
2067
2068This class implements idle watchers, that get called automatically when
2069the process is idle. They should return as fast as possible, after doing
2070some useful work.
2071
2072=over 4
2073
2074=item $iw = new urxvt::iw
2075
2076Create a new idle watcher object in stopped state.
2077
2078=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2079
2080Set the callback to be called when the watcher triggers.
2081
2082=item $timer = $timer->start
2083
2084Start the watcher.
2085
2086=item $timer = $timer->stop
2087
2088Stop the watcher.
2089
2090=back
2091
2092=head2 The C<urxvt::pw> Class
2093
2094This class implements process watchers. They create an event whenever a
2095process exits, after which they stop automatically.
2096
2097 my $pid = fork;
2098 ...
2099 $term->{pw} = urxvt::pw
2100 ->new
2101 ->start ($pid)
2102 ->cb (sub {
2103 my ($pw, $exit_status) = @_;
2104 ...
2105 });
2106
2107=over 4
2108
2109=item $pw = new urxvt::pw
2110
2111Create a new process watcher in stopped state.
2112
2113=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2114
2115Set the callback to be called when the timer triggers.
2116
2117=item $pw = $timer->start ($pid)
2118
2119Tells the watcher to start watching for process C<$pid>.
2120
2121=item $pw = $pw->stop
2122
2123Stop the watcher.
1665 2124
1666=back 2125=back
1667 2126
1668=head1 ENVIRONMENT 2127=head1 ENVIRONMENT
1669 2128
1678 2137
1679=item >= 3 - script loading and management 2138=item >= 3 - script loading and management
1680 2139
1681=item >=10 - all called hooks 2140=item >=10 - all called hooks
1682 2141
1683=item >=11 - hook reutrn values 2142=item >=11 - hook return values
1684 2143
1685=back 2144=back
1686 2145
1687=head1 AUTHOR 2146=head1 AUTHOR
1688 2147

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