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Revision 1.55 by root, Sun Jan 8 05:50:27 2006 UTC vs.
Revision 1.130 by root, Wed Jan 25 15:32:48 2006 UTC

26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31=head2 Prepackaged Extensions 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
44Intelligent selection. This extension tries to be more intelligent when 48(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 49when the user extends selections (double-click and further clicks). Right
46urls and complete shell-quoted arguments, which is very convenient, too, 50now, it tries to select words, urls and complete shell-quoted
47if your F<ls> supports C<--quoting-style=shell>. 51arguments, which is very convenient, too, if your F<ls> supports
52C<--quoting-style=shell>.
48 53
49It also offers the following bindable event: 54A double-click usually selects the word under the cursor, further clicks
55will enlarge the selection.
56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the followign adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
78
79You can look at the source of the selection extension to see more
80interesting uses, such as parsing a line from beginning to end.
81
82This extension also offers following bindable keyboard commands:
50 83
51=over 4 84=over 4
52 85
53=item rot13 86=item rot13
54 87
58 91
59=back 92=back
60 93
61=item option-popup (enabled by default) 94=item option-popup (enabled by default)
62 95
63Binds a popup menu to Ctrl-Button3 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
66=item digital-clock 99=item selection-popup (enabled by default)
67 100
68Displays a digital clock using the built-in overlay. 101Binds a popup menu to Ctrl-Button3 that lets you convert the selection
102text into various other formats/action (such as uri unescaping, perl
103evaluation, web-browser starting etc.), depending on content.
104
105Other extensions can extend this popup menu by pushing a code reference
106onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
107popup is displayed.
108
109It's sole argument is the popup menu, which can be modified. The selection
110is in C<$_>, which can be used to decide wether to add something or not.
111It should either return nothing or a string and a code reference. The
112string will be used as button text and the code reference will be called
113when the button gets activated and should transform C<$_>.
114
115The following will add an entry C<a to b> that transforms all C<a>s in
116the selection to C<b>s, but only if the selection currently contains any
117C<a>s:
118
119 push @{ $self->{term}{selection_popup_hook} }, sub {
120 /a/ ? ("a to be" => sub { s/a/b/g }
121 : ()
122 };
123
124=item searchable-scrollback<hotkey> (enabled by default)
125
126Adds regex search functionality to the scrollback buffer, triggered
127by a hotkey (default: C<M-s>). While in search mode, normal terminal
128input/output is suspended and a regex is displayed at the bottom of the
129screen.
130
131Inputting characters appends them to the regex and continues incremental
132search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
133search upwards/downwards in the scrollback buffer, C<End> jumps to the
134bottom. C<Escape> leaves search mode and returns to the point where search
135was started, while C<Enter> or C<Return> stay at the current position and
136additionally stores the first match in the current line into the primary
137selection.
138
139=item readline (enabled by default)
140
141A support package that tries to make editing with readline easier. At the
142moment, it reacts to clicking with the left mouse button by trying to
143move the text cursor to this position. It does so by generating as many
144cursor-left or cursor-right keypresses as required (the this only works
145for programs that correctly support wide characters).
146
147To avoid too many false positives, this is only done when:
148
149=over 4
150
151=item - the tty is in ICANON state.
152
153=item - the text cursor is visible.
154
155=item - the primary screen is currently being displayed.
156
157=item - the mouse is on the same (multi-row-) line as the text cursor.
158
159=back
160
161The normal selection mechanism isn't disabled, so quick successive clicks
162might interfere with selection creation in harmless ways.
163
164=item selection-autotransform
165
166This selection allows you to do automatic transforms on a selection
167whenever a selection is made.
168
169It works by specifying perl snippets (most useful is a single C<s///>
170operator) that modify C<$_> as resources:
171
172 URxvt.selection-autotransform.0: transform
173 URxvt.selection-autotransform.1: transform
174 ...
175
176For example, the following will transform selections of the form
177C<filename:number>, often seen in compiler messages, into C<vi +$filename
178$word>:
179
180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
181
182And this example matches the same,but replaces it with vi-commands you can
183paste directly into your (vi :) editor:
184
185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
186
187Of course, this can be modified to suit your needs and your editor :)
188
189To expand the example above to typical perl error messages ("XXX at
190FILENAME line YYY."), you need a slightly more elaborate solution:
191
192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
194
195The first line tells the selection code to treat the unchanging part of
196every error message as a selection pattern, and the second line transforms
197the message into vi commands to load the file.
198
199=item tabbed
200
201This transforms the terminal into a tabbar with additional terminals, that
202is, it implements what is commonly refered to as "tabbed terminal". The topmost line
203displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
204button per tab.
205
206Clicking a button will activate that tab. Pressing B<Shift-Left> and
207B<Shift-Right> will switch to the tab left or right of the current one,
208while B<Shift-Down> creates a new tab.
69 209
70=item mark-urls 210=item mark-urls
71 211
72Uses per-line display filtering (C<on_line_update>) to underline urls. 212Uses per-line display filtering (C<on_line_update>) to underline urls and
213make them clickable. When middle-clicked, the program specified in the
214resource C<urlLauncher> (default C<x-www-browser>) will be started with
215the URL as first argument.
216
217=item xim-onthespot
218
219This (experimental) perl extension implements OnTheSpot editing. It does
220not work perfectly, and some input methods don't seem to work well with
221OnTheSpot editing in general, but it seems to work at leats for SCIM and
222kinput2.
223
224You enable it by specifying this extension and a preedit style of
225C<OnTheSpot>, i.e.:
226
227 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
228
229=item automove-background
230
231This is basically a one-line extension that dynamically changes the background pixmap offset
232to the window position, in effect creating the same effect as pseudo transparency with
233a custom pixmap. No scaling is supported in this mode. Exmaple:
234
235 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
73 236
74=item block-graphics-to-ascii 237=item block-graphics-to-ascii
75 238
76A not very useful example of filtering all text output to the terminal, 239A not very useful example of filtering all text output to the terminal,
77by replacing all line-drawing characters (U+2500 .. U+259F) by a 240by replacing all line-drawing characters (U+2500 .. U+259F) by a
78similar-looking ascii character. 241similar-looking ascii character.
79 242
243=item digital-clock
244
245Displays a digital clock using the built-in overlay.
246
247=item remote-clipboard
248
249Somewhat of a misnomer, this extension adds two menu entries to the
250selection popup that allows one ti run external commands to store the
251selection somewhere and fetch it again.
252
253We use it to implement a "distributed selection mechanism", which just
254means that one command uploads the file to a remote server, and another
255reads it.
256
257The commands can be set using the C<URxvt.remote-selection.store> and
258C<URxvt.remote-selection.fetch> resources. The first should read the
259selection to store from STDIN (always in UTF-8), the second should provide
260the selection data on STDOUT (also in UTF-8).
261
262The defaults (which are likely useless to you) use rsh and cat:
263
264 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
265 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
266
267=item selection-pastebin
268
269This is a little rarely useful extension that Uploads the selection as
270textfile to a remote site (or does other things). (The implementation is
271not currently secure for use in a multiuser environment as it writes to
272F</tmp> directly.).
273
274It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
275i.e.
276
277 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
278
279Pressing this combination runs a command with C<%> replaced by the name of
280the textfile. This command can be set via a resource:
281
282 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
283
284And the default is likely not useful to anybody but the few people around
285here :)
286
287The name of the textfile is the hex encoded md5 sum of the selection, so
288the same content should lead to the same filename.
289
290After a successful upload the selection will be replaced by the text given
291in the C<selection-pastebin-url> resource (again, the % is the placeholder
292for the filename):
293
294 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
295
80=item example-refresh-hooks 296=item example-refresh-hooks
81 297
82Displays a very simple digital clock in the upper right corner of the 298Displays a very simple digital clock in the upper right corner of the
83window. Illustrates overwriting the refresh callbacks to create your own 299window. Illustrates overwriting the refresh callbacks to create your own
84overlays or changes. 300overlays or changes.
85 301
86=back 302=back
303
304=head1 API DOCUMENTATION
87 305
88=head2 General API Considerations 306=head2 General API Considerations
89 307
90All objects (such as terminals, time watchers etc.) are typical 308All objects (such as terminals, time watchers etc.) are typical
91reference-to-hash objects. The hash can be used to store anything you 309reference-to-hash objects. The hash can be used to store anything you
104=over 4 322=over 4
105 323
106=item $text 324=item $text
107 325
108Rxvt-unicodes special way of encoding text, where one "unicode" character 326Rxvt-unicodes special way of encoding text, where one "unicode" character
109always represents one screen cell. See L<row_t> for a discussion of this format. 327always represents one screen cell. See L<ROW_t> for a discussion of this format.
110 328
111=item $string 329=item $string
112 330
113A perl text string, with an emphasis on I<text>. It can store all unicode 331A perl text string, with an emphasis on I<text>. It can store all unicode
114characters and is to be distinguished with text encoded in a specific 332characters and is to be distinguished with text encoded in a specific
119Either binary data or - more common - a text string encoded in a 337Either binary data or - more common - a text string encoded in a
120locale-specific way. 338locale-specific way.
121 339
122=back 340=back
123 341
342=head2 Extension Objects
343
344Very perl extension is a perl class. A separate perl object is created
345for each terminal and each extension and passed as the first parameter to
346hooks. So extensions can use their C<$self> object without having to think
347about other extensions, with the exception of methods and members that
348begin with an underscore character C<_>: these are reserved for internal
349use.
350
351Although it isn't a C<urxvt::term> object, you can call all methods of the
352C<urxvt::term> class on this object.
353
354It has the following methods and data members:
355
356=over 4
357
358=item $urxvt_term = $self->{term}
359
360Returns the C<urxvt::term> object associated with this instance of the
361extension. This member I<must not> be changed in any way.
362
363=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
364
365Dynamically enable the given hooks (named without the C<on_> prefix) for
366this extension, replacing any previous hook. This is useful when you want
367to overwrite time-critical hooks only temporarily.
368
369=item $self->disable ($hook_name[, $hook_name..])
370
371Dynamically disable the given hooks.
372
373=back
374
124=head2 Hooks 375=head2 Hooks
125 376
126The following subroutines can be declared in extension files, and will be 377The following subroutines can be declared in extension files, and will be
127called whenever the relevant event happens. 378called whenever the relevant event happens.
128 379
129The first argument passed to them is an object private to each terminal 380The first argument passed to them is an extension oject as described in
130and extension package. You can call all C<urxvt::term> methods on it, but 381the in the C<Extension Objects> section.
131its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
132object that is shared between all packages is stored in the C<term>
133member. It is, however, blessed intot he package of the extension script,
134so for all practical purposes you can treat an extension script as a class.
135 382
136All of them must return a boolean value. If it is true, then the event 383B<All> of these hooks must return a boolean value. If any of the called
137counts as being I<consumed>, and the invocation of other hooks is skipped, 384hooks returns true, then the event counts as being I<consumed>, and the
138and the relevant action might not be carried out by the C++ code. 385relevant action might not be carried out by the C++ code.
139 386
140When in doubt, return a false value (preferably C<()>). 387I<< When in doubt, return a false value (preferably C<()>). >>
141 388
142=over 4 389=over 4
143 390
144=item on_init $term 391=item on_init $term
145 392
146Called after a new terminal object has been initialized, but before 393Called after a new terminal object has been initialized, but before
147windows are created or the command gets run. Most methods are unsafe to 394windows are created or the command gets run. Most methods are unsafe to
148call or deliver senseless data, as terminal size and other characteristics 395call or deliver senseless data, as terminal size and other characteristics
149have not yet been determined. You can safely query and change resources, 396have not yet been determined. You can safely query and change resources
150though. 397and options, though. For many purposes the C<on_start> hook is a better
398place.
399
400=item on_start $term
401
402Called at the very end of initialisation of a new terminal, just before
403trying to map (display) the toplevel and returning to the mainloop.
404
405=item on_destroy $term
406
407Called whenever something tries to destroy terminal, when the terminal is
408still fully functional (not for long, though).
151 409
152=item on_reset $term 410=item on_reset $term
153 411
154Called after the screen is "reset" for any reason, such as resizing or 412Called after the screen is "reset" for any reason, such as resizing or
155control sequences. Here is where you can react on changes to size-related 413control sequences. Here is where you can react on changes to size-related
156variables. 414variables.
157 415
158=item on_start $term 416=item on_child_start $term, $pid
159 417
160Called at the very end of initialisation of a new terminal, just before 418Called just after the child process has been C<fork>ed.
161returning to the mainloop. 419
420=item on_child_exit $term, $status
421
422Called just after the child process has exited. C<$status> is the status
423from C<waitpid>.
162 424
163=item on_sel_make $term, $eventtime 425=item on_sel_make $term, $eventtime
164 426
165Called whenever a selection has been made by the user, but before the 427Called whenever a selection has been made by the user, but before the
166selection text is copied, so changes to the beginning, end or type of the 428selection text is copied, so changes to the beginning, end or type of the
180=item on_sel_extend $term 442=item on_sel_extend $term
181 443
182Called whenever the user tries to extend the selection (e.g. with a double 444Called whenever the user tries to extend the selection (e.g. with a double
183click) and is either supposed to return false (normal operation), or 445click) and is either supposed to return false (normal operation), or
184should extend the selection itelf and return true to suppress the built-in 446should extend the selection itelf and return true to suppress the built-in
185processing. 447processing. This can happen multiple times, as long as the callback
448returns true, it will be called on every further click by the user and is
449supposed to enlarge the selection more and more, if possible.
186 450
187See the F<selection> example extension. 451See the F<selection> example extension.
188 452
189=item on_view_change $term, $offset 453=item on_view_change $term, $offset
190 454
199than the scroll back buffer or the terminal. 463than the scroll back buffer or the terminal.
200 464
201It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 465It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
202$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 466$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
203number of lines that will be in the scrollback buffer. 467number of lines that will be in the scrollback buffer.
204
205=item on_tty_activity $term *NYI*
206
207Called whenever the program(s) running in the urxvt window send output.
208 468
209=item on_osc_seq $term, $string 469=item on_osc_seq $term, $string
210 470
211Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 471Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
212operating system command) is processed. Cursor position and other state 472operating system command) is processed. Cursor position and other state
225can filter/change and output the text yourself by returning a true value 485can filter/change and output the text yourself by returning a true value
226and calling C<< $term->scr_add_lines >> yourself. Please note that this 486and calling C<< $term->scr_add_lines >> yourself. Please note that this
227might be very slow, however, as your hook is called for B<all> text being 487might be very slow, however, as your hook is called for B<all> text being
228output. 488output.
229 489
490=item on_tt_write $term, $octets
491
492Called whenever some data is written to the tty/pty and can be used to
493suppress or filter tty input.
494
230=item on_line_update $term, $row 495=item on_line_update $term, $row
231 496
232Called whenever a line was updated or changed. Can be used to filter 497Called whenever a line was updated or changed. Can be used to filter
233screen output (e.g. underline urls or other useless stuff). Only lines 498screen output (e.g. underline urls or other useless stuff). Only lines
234that are being shown will be filtered, and, due to performance reasons, 499that are being shown will be filtered, and, due to performance reasons,
250 515
251=item on_refresh_end $term 516=item on_refresh_end $term
252 517
253Called just after the screen gets redrawn. See C<on_refresh_begin>. 518Called just after the screen gets redrawn. See C<on_refresh_begin>.
254 519
255=item on_keyboard_command $term, $string 520=item on_user_command $term, $string
256 521
257Called whenever the user presses a key combination that has a 522Called whenever the a user-configured event is being activated (e.g. via
258C<perl:string> action bound to it (see description of the B<keysym> 523a C<perl:string> action bound to a key, see description of the B<keysym>
259resource in the @@RXVT_NAME@@(1) manpage). 524resource in the @@RXVT_NAME@@(1) manpage).
525
526The event is simply the action string. This interface is assumed to change
527slightly in the future.
528
529=item on_x_event $term, $event
530
531Called on every X event received on the vt window (and possibly other
532windows). Should only be used as a last resort. Most event structure
533members are not passed.
260 534
261=item on_focus_in $term 535=item on_focus_in $term
262 536
263Called whenever the window gets the keyboard focus, before rxvt-unicode 537Called whenever the window gets the keyboard focus, before rxvt-unicode
264does focus in processing. 538does focus in processing.
266=item on_focus_out $term 540=item on_focus_out $term
267 541
268Called wheneever the window loses keyboard focus, before rxvt-unicode does 542Called wheneever the window loses keyboard focus, before rxvt-unicode does
269focus out processing. 543focus out processing.
270 544
545=item on_configure_notify $term, $event
546
547=item on_property_notify $term, $event
548
271=item on_key_press $term, $event, $octets 549=item on_key_press $term, $event, $keysym, $octets
272 550
273=item on_key_release $term, $event 551=item on_key_release $term, $event, $keysym
274 552
275=item on_button_press $term, $event 553=item on_button_press $term, $event
276 554
277=item on_button_release $term, $event 555=item on_button_release $term, $event
278 556
284 562
285Called whenever the corresponding X event is received for the terminal If 563Called whenever the corresponding X event is received for the terminal If
286the hook returns true, then the even will be ignored by rxvt-unicode. 564the hook returns true, then the even will be ignored by rxvt-unicode.
287 565
288The event is a hash with most values as named by Xlib (see the XEvent 566The event is a hash with most values as named by Xlib (see the XEvent
289manpage), with the additional members C<row> and C<col>, which are the row 567manpage), with the additional members C<row> and C<col>, which are the
290and column under the mouse cursor. 568(real, not screen-based) row and column under the mouse cursor.
291 569
292C<on_key_press> additionally receives the string rxvt-unicode would 570C<on_key_press> additionally receives the string rxvt-unicode would
293output, if any, in locale-specific encoding. 571output, if any, in locale-specific encoding.
294 572
295subwindow. 573subwindow.
296 574
575=item on_client_message $term, $event
576
577=item on_wm_protocols $term, $event
578
579=item on_wm_delete_window $term, $event
580
581Called when various types of ClientMessage events are received (all with
582format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
583
297=back 584=back
298 585
586=cut
587
588package urxvt;
589
590use utf8;
591use strict;
592use Carp ();
593use Scalar::Util ();
594use List::Util ();
595
596our $VERSION = 1;
597our $TERM;
598our @TERM_INIT;
599our @TERM_EXT;
600our @HOOKNAME;
601our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
602our %OPTION;
603
604our $LIBDIR;
605our $RESNAME;
606our $RESCLASS;
607our $RXVTNAME;
608
609our $NOCHAR = chr 0xffff;
610
299=head2 Variables in the C<urxvt> Package 611=head2 Variables in the C<urxvt> Package
300 612
301=over 4 613=over 4
614
615=item $urxvt::LIBDIR
616
617The rxvt-unicode library directory, where, among other things, the perl
618modules and scripts are stored.
619
620=item $urxvt::RESCLASS, $urxvt::RESCLASS
621
622The resource class and name rxvt-unicode uses to look up X resources.
623
624=item $urxvt::RXVTNAME
625
626The basename of the installed binaries, usually C<urxvt>.
302 627
303=item $urxvt::TERM 628=item $urxvt::TERM
304 629
305The current terminal. This variable stores the current C<urxvt::term> 630The current terminal. This variable stores the current C<urxvt::term>
306object, whenever a callback/hook is executing. 631object, whenever a callback/hook is executing.
307 632
633=item @urxvt::TERM_INIT
634
635All coderefs in this array will be called as methods of the next newly
636created C<urxvt::term> object (during the C<on_init> phase). The array
637gets cleared before the codereferences that were in it are being executed,
638so coderefs can push themselves onto it again if they so desire.
639
640This complements to the perl-eval commandline option, but gets executed
641first.
642
643=item @urxvt::TERM_EXT
644
645Works similar to C<@TERM_INIT>, but contains perl package/class names, which
646get registered as normal extensions after calling the hooks in C<@TERM_INIT>
647but before other extensions. Gets cleared just like C<@TERM_INIT>.
648
308=back 649=back
309 650
310=head2 Functions in the C<urxvt> Package 651=head2 Functions in the C<urxvt> Package
311 652
312=over 4 653=over 4
313
314=item $term = new urxvt [arg...]
315
316Creates a new terminal, very similar as if you had started it with
317C<system $binfile, arg...>. Croaks (and probably outputs an error message)
318if the new instance couldn't be created. Returns C<undef> if the new
319instance didn't initialise perl, and the terminal object otherwise. The
320C<init> and C<start> hooks will be called during the call.
321 654
322=item urxvt::fatal $errormessage 655=item urxvt::fatal $errormessage
323 656
324Fatally aborts execution with the given error message. Avoid at all 657Fatally aborts execution with the given error message. Avoid at all
325costs! The only time this is acceptable is when the terminal process 658costs! The only time this is acceptable is when the terminal process
332that calls this function. 665that calls this function.
333 666
334Using this function has the advantage that its output ends up in the 667Using this function has the advantage that its output ends up in the
335correct place, e.g. on stderr of the connecting urxvtc client. 668correct place, e.g. on stderr of the connecting urxvtc client.
336 669
670Messages have a size limit of 1023 bytes currently.
671
337=item $time = urxvt::NOW 672=item $time = urxvt::NOW
338 673
339Returns the "current time" (as per the event loop). 674Returns the "current time" (as per the event loop).
340 675
341=item urxvt::CurrentTime 676=item urxvt::CurrentTime
342 677
343=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 678=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
344Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 679Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
345Button4Mask, Button5Mask, AnyModifier 680Button4Mask, Button5Mask, AnyModifier
681
682=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
683ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
684PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
685Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
686KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
687ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
688FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
689
690=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
691EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
692GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
693UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
694ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
695CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
696SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
346 697
347Various constants for use in X calls and event processing. 698Various constants for use in X calls and event processing.
348 699
349=back 700=back
350 701
379 730
380=item $background = urxvt::GET_BASEBG $rend 731=item $background = urxvt::GET_BASEBG $rend
381 732
382Return the foreground/background colour index, respectively. 733Return the foreground/background colour index, respectively.
383 734
384=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 735=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
385 736
386=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 737=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
387 738
388Replace the foreground/background colour in the rendition mask with the 739Replace the foreground/background colour in the rendition mask with the
389specified one. 740specified one.
390 741
391=item $value = urxvt::GET_CUSTOM ($rend) 742=item $value = urxvt::GET_CUSTOM $rend
392 743
393Return the "custom" value: Every rendition has 5 bits for use by 744Return the "custom" value: Every rendition has 5 bits for use by
394extensions. They can be set and changed as you like and are initially 745extensions. They can be set and changed as you like and are initially
395zero. 746zero.
396 747
397=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 748=item $rend = urxvt::SET_CUSTOM $rend, $new_value
398 749
399Change the custom value. 750Change the custom value.
400 751
401=back 752=back
402 753
403=cut 754=cut
404 755
405package urxvt;
406
407use utf8;
408use strict;
409use Scalar::Util ();
410use List::Util ();
411
412our $VERSION = 1;
413our $TERM;
414our @HOOKNAME;
415our %OPTION;
416our $LIBDIR;
417
418BEGIN { 756BEGIN {
419 urxvt->bootstrap;
420
421 # overwrite perl's warn 757 # overwrite perl's warn
422 *CORE::GLOBAL::warn = sub { 758 *CORE::GLOBAL::warn = sub {
423 my $msg = join "", @_; 759 my $msg = join "", @_;
424 $msg .= "\n" 760 $msg .= "\n"
425 unless $msg =~ /\n$/; 761 unless $msg =~ /\n$/;
426 urxvt::warn ($msg); 762 urxvt::warn ($msg);
427 }; 763 };
428} 764}
429 765
430my @hook_count; 766no warnings 'utf8';
767
431my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 768my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
432 769
433sub verbose { 770sub verbose {
434 my ($level, $msg) = @_; 771 my ($level, $msg) = @_;
435 warn "$msg\n" if $level <= $verbosity; 772 warn "$msg\n" if $level <= $verbosity;
436} 773}
437 774
438# find on_xxx subs in the package and register them
439# as hooks
440sub register_package($) {
441 my ($pkg) = @_;
442
443 for my $htype (0.. $#HOOKNAME) {
444 my $name = $HOOKNAME[$htype];
445
446 my $ref = $pkg->can ("on_" . lc $name)
447 or next;
448
449 $TERM->{_hook}[$htype]{$pkg} = $ref;
450 $hook_count[$htype]++
451 or set_should_invoke $htype, 1;
452 }
453}
454
455my $extension_pkg = "extension0000";
456my %extension_pkg; 775my %extension_pkg;
457 776
458# load a single script into its own package, once only 777# load a single script into its own package, once only
459sub extension_package($) { 778sub extension_package($) {
460 my ($path) = @_; 779 my ($path) = @_;
461 780
462 $extension_pkg{$path} ||= do { 781 $extension_pkg{$path} ||= do {
463 my $pkg = "urxvt::" . ($extension_pkg++); 782 $path =~ /([^\/\\]+)$/;
783 my $pkg = $1;
784 $pkg =~ s/[^[:word:]]/_/g;
785 $pkg = "urxvt::ext::$pkg";
464 786
465 verbose 3, "loading extension '$path' into package '$pkg'"; 787 verbose 3, "loading extension '$path' into package '$pkg'";
466 788
467 open my $fh, "<:raw", $path 789 open my $fh, "<:raw", $path
468 or die "$path: $!"; 790 or die "$path: $!";
469 791
470 my $source = "package $pkg; use strict; use utf8;\n" 792 my $source =
471 . "use base urxvt::term::proxy::;\n" 793 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
472 . "#line 1 \"$path\"\n{\n" 794 . "#line 1 \"$path\"\n{\n"
473 . (do { local $/; <$fh> }) 795 . (do { local $/; <$fh> })
474 . "\n};\n1"; 796 . "\n};\n1";
475 797
798 eval $source
476 eval $source or die "$path: $@"; 799 or die "$path: $@";
477 800
478 $pkg 801 $pkg
479 } 802 }
480} 803}
481 804
487 my $htype = shift; 810 my $htype = shift;
488 811
489 if ($htype == 0) { # INIT 812 if ($htype == 0) { # INIT
490 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 813 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
491 814
492 my %want_ext; 815 my %ext_arg;
493 816
817 {
818 my @init = @TERM_INIT;
819 @TERM_INIT = ();
820 $_->($TERM) for @init;
821 my @pkg = @TERM_EXT;
822 @TERM_EXT = ();
823 $TERM->register_package ($_) for @pkg;
824 }
825
494 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 826 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
495 if ($_ eq "default") { 827 if ($_ eq "default") {
496 $want_ext{$_}++ for qw(selection option-popup); 828 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
497 } elsif (/^-(.*)$/) { 829 } elsif (/^-(.*)$/) {
498 delete $want_ext{$1}; 830 delete $ext_arg{$1};
831 } elsif (/^([^<]+)<(.*)>$/) {
832 push @{ $ext_arg{$1} }, $2;
499 } else { 833 } else {
500 $want_ext{$_}++; 834 $ext_arg{$_} ||= [];
501 } 835 }
502 } 836 }
503 837
504 for my $ext (keys %want_ext) { 838 while (my ($ext, $argv) = each %ext_arg) {
505 my @files = grep -f $_, map "$_/$ext", @dirs; 839 my @files = grep -f $_, map "$_/$ext", @dirs;
506 840
507 if (@files) { 841 if (@files) {
508 register_package extension_package $files[0]; 842 $TERM->register_package (extension_package $files[0], $argv);
509 } else { 843 } else {
510 warn "perl extension '$ext' not found in perl library search path\n"; 844 warn "perl extension '$ext' not found in perl library search path\n";
511 } 845 }
512 } 846 }
513 847
522 if $verbosity >= 10; 856 if $verbosity >= 10;
523 857
524 keys %$cb; 858 keys %$cb;
525 859
526 while (my ($pkg, $cb) = each %$cb) { 860 while (my ($pkg, $cb) = each %$cb) {
527 eval { 861 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
528 $retval = $cb->( 862 $retval ||= $retval_;
529 $TERM->{_pkg}{$pkg} ||= do {
530 my $proxy = bless { }, $pkg;
531 Scalar::Util::weaken ($proxy->{term} = $TERM);
532 $proxy
533 },
534 @_,
535 ) and last;
536 };
537 warn $@ if $@;#d#
538 }
539 }
540 863
541 if ($htype == 1) { # DESTROY 864 if ($@) {
542 # remove hooks if unused 865 $TERM->ungrab; # better to lose the grab than the session
543 if (my $hook = $TERM->{_hook}) { 866 warn $@;
544 for my $htype (0..$#$hook) {
545 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
546 or set_should_invoke $htype, 0;
547 } 867 }
548 } 868 }
549 869
870 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
871 if $verbosity >= 11;
872 }
873
874 if ($htype == 1) { # DESTROY
550 # clear package objects 875 # clear package objects
551 %$_ = () for values %{ $TERM->{_pkg} }; 876 %$_ = () for values %{ $TERM->{_pkg} };
552 877
553 # clear package 878 # clear package
554 %$TERM = (); 879 %$TERM = ();
555 } 880 }
556 881
557 $retval 882 $retval
558} 883}
559 884
560# urxvt::term::proxy 885# urxvt::term::extension
561 886
562sub urxvt::term::proxy::AUTOLOAD { 887package urxvt::term::extension;
563 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 888
889sub enable {
890 my ($self, %hook) = @_;
891 my $pkg = $self->{_pkg};
892
893 while (my ($name, $cb) = each %hook) {
894 my $htype = $HOOKTYPE{uc $name};
895 defined $htype
896 or Carp::croak "unsupported hook type '$name'";
897
898 $self->set_should_invoke ($htype, +1)
899 unless exists $self->{term}{_hook}[$htype]{$pkg};
900
901 $self->{term}{_hook}[$htype]{$pkg} = $cb;
902 }
903}
904
905sub disable {
906 my ($self, @hook) = @_;
907 my $pkg = $self->{_pkg};
908
909 for my $name (@hook) {
910 my $htype = $HOOKTYPE{uc $name};
911 defined $htype
912 or Carp::croak "unsupported hook type '$name'";
913
914 $self->set_should_invoke ($htype, -1)
915 if delete $self->{term}{_hook}[$htype]{$pkg};
916 }
917}
918
919our $AUTOLOAD;
920
921sub AUTOLOAD {
922 $AUTOLOAD =~ /:([^:]+)$/
564 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 923 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
565 924
566 eval qq{ 925 eval qq{
567 sub $urxvt::term::proxy::AUTOLOAD { 926 sub $AUTOLOAD {
568 my \$proxy = shift; 927 my \$proxy = shift;
569 \$proxy->{term}->$1 (\@_) 928 \$proxy->{term}->$1 (\@_)
570 } 929 }
571 1 930 1
572 } or die "FATAL: unable to compile method forwarder: $@"; 931 } or die "FATAL: unable to compile method forwarder: $@";
573 932
574 goto &$urxvt::term::proxy::AUTOLOAD; 933 goto &$AUTOLOAD;
934}
935
936sub DESTROY {
937 # nop
575} 938}
576 939
577# urxvt::destroy_hook 940# urxvt::destroy_hook
578 941
579sub urxvt::destroy_hook::DESTROY { 942sub urxvt::destroy_hook::DESTROY {
582 945
583sub urxvt::destroy_hook(&) { 946sub urxvt::destroy_hook(&) {
584 bless \shift, urxvt::destroy_hook:: 947 bless \shift, urxvt::destroy_hook::
585} 948}
586 949
587# urxvt::anyevent
588
589package urxvt::anyevent; 950package urxvt::anyevent;
951
952=head2 The C<urxvt::anyevent> Class
953
954The sole purpose of this class is to deliver an interface to the
955C<AnyEvent> module - any module using it will work inside urxvt without
956further programming. The only exception is that you cannot wait on
957condition variables, but non-blocking condvar use is ok. What this means
958is that you cannot use blocking APIs, but the non-blocking variant should
959work.
960
961=cut
590 962
591our $VERSION = 1; 963our $VERSION = 1;
592 964
593$INC{"urxvt/anyevent.pm"} = 1; # mark us as there 965$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
594push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::]; 966push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
637 ${$_[0]}++; 1009 ${$_[0]}++;
638} 1010}
639 1011
640sub urxvt::anyevent::condvar::wait { 1012sub urxvt::anyevent::condvar::wait {
641 unless (${$_[0]}) { 1013 unless (${$_[0]}) {
642 require Carp;
643 Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"); 1014 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
644 } 1015 }
645} 1016}
646 1017
647package urxvt::term; 1018package urxvt::term;
648 1019
649=head2 The C<urxvt::term> Class 1020=head2 The C<urxvt::term> Class
650 1021
651=over 4 1022=over 4
652 1023
1024=cut
1025
1026# find on_xxx subs in the package and register them
1027# as hooks
1028sub register_package {
1029 my ($self, $pkg, $argv) = @_;
1030
1031 no strict 'refs';
1032
1033 urxvt::verbose 6, "register package $pkg to $self";
1034
1035 @{"$pkg\::ISA"} = urxvt::term::extension::;
1036
1037 my $proxy = bless {
1038 _pkg => $pkg,
1039 argv => $argv,
1040 }, $pkg;
1041 Scalar::Util::weaken ($proxy->{term} = $self);
1042
1043 $self->{_pkg}{$pkg} = $proxy;
1044
1045 for my $name (@HOOKNAME) {
1046 if (my $ref = $pkg->can ("on_" . lc $name)) {
1047 $proxy->enable ($name => $ref);
1048 }
1049 }
1050}
1051
1052=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1053
1054Creates a new terminal, very similar as if you had started it with system
1055C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1056hash which defines the environment of the new terminal.
1057
1058Croaks (and probably outputs an error message) if the new instance
1059couldn't be created. Returns C<undef> if the new instance didn't
1060initialise perl, and the terminal object otherwise. The C<init> and
1061C<start> hooks will be called during this call.
1062
1063=cut
1064
1065sub new {
1066 my ($class, $env, @args) = @_;
1067
1068 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
1069}
1070
653=item $term->destroy 1071=item $term->destroy
654 1072
655Destroy the terminal object (close the window, free resources etc.). 1073Destroy the terminal object (close the window, free resources
1074etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1075watchers (timers, io watchers) are still active.
1076
1077=item $term->exec_async ($cmd[, @args])
1078
1079Works like the combination of the C<fork>/C<exec> builtins, which executes
1080("starts") programs in the background. This function takes care of setting
1081the user environment before exec'ing the command (e.g. C<PATH>) and should
1082be preferred over explicit calls to C<exec> or C<system>.
1083
1084Returns the pid of the subprocess or C<undef> on error.
1085
1086=cut
1087
1088sub exec_async {
1089 my $self = shift;
1090
1091 my $pid = fork;
1092
1093 return $pid
1094 if !defined $pid or $pid;
1095
1096 %ENV = %{ $self->env };
1097
1098 exec @_;
1099 urxvt::_exit 255;
1100}
656 1101
657=item $isset = $term->option ($optval[, $set]) 1102=item $isset = $term->option ($optval[, $set])
658 1103
659Returns true if the option specified by C<$optval> is enabled, and 1104Returns true if the option specified by C<$optval> is enabled, and
660optionally change it. All option values are stored by name in the hash 1105optionally change it. All option values are stored by name in the hash
663Here is a a likely non-exhaustive list of option names, please see the 1108Here is a a likely non-exhaustive list of option names, please see the
664source file F</src/optinc.h> to see the actual list: 1109source file F</src/optinc.h> to see the actual list:
665 1110
666 borderLess console cursorBlink cursorUnderline hold iconic insecure 1111 borderLess console cursorBlink cursorUnderline hold iconic insecure
667 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1112 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
668 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1113 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
669 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1114 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
670 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1115 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
671 tripleclickwords utmpInhibit visualBell 1116 transparent tripleclickwords utmpInhibit visualBell
672 1117
673=item $value = $term->resource ($name[, $newval]) 1118=item $value = $term->resource ($name[, $newval])
674 1119
675Returns the current resource value associated with a given name and 1120Returns the current resource value associated with a given name and
676optionally sets a new value. Setting values is most useful in the C<init> 1121optionally sets a new value. Setting values is most useful in the C<init>
693 1138
694 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1139 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
695 borderLess color cursorBlink cursorUnderline cutchars delete_key 1140 borderLess color cursorBlink cursorUnderline cutchars delete_key
696 display_name embed ext_bwidth fade font geometry hold iconName 1141 display_name embed ext_bwidth fade font geometry hold iconName
697 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1142 imFont imLocale inputMethod insecure int_bwidth intensityStyles
698 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1143 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
699 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1144 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
700 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1145 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
701 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1146 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
702 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1147 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
703 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1148 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
704 shade term_name title transparent transparent_all tripleclickwords 1149 secondaryScreen secondaryScroll selectstyle shade term_name title
705 utmpInhibit visualBell 1150 transient_for transparent transparent_all tripleclickwords utmpInhibit
1151 visualBell
706 1152
707=cut 1153=cut
708 1154
709sub resource($$;$) { 1155sub resource($$;$) {
710 my ($self, $name) = (shift, shift); 1156 my ($self, $name) = (shift, shift);
711 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1157 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
712 &urxvt::term::_resource 1158 &urxvt::term::_resource
713} 1159}
714 1160
1161=item $value = $term->x_resource ($pattern)
1162
1163Returns the X-Resource for the given pattern, excluding the program or
1164class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1165same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1166resource with that pattern exists.
1167
1168This method should only be called during the C<on_start> hook, as there is
1169only one resource database per display, and later invocations might return
1170the wrong resources.
1171
1172=item $success = $term->parse_keysym ($keysym_spec, $command_string)
1173
1174Adds a keymap translation exactly as specified via a resource. See the
1175C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1176
715=item $rend = $term->rstyle ([$new_rstyle]) 1177=item $rend = $term->rstyle ([$new_rstyle])
716 1178
717Return and optionally change the current rendition. Text that is output by 1179Return and optionally change the current rendition. Text that is output by
718the terminal application will use this style. 1180the terminal application will use this style.
719 1181
729=item ($row, $col) = $term->selection_end ([$row, $col]) 1191=item ($row, $col) = $term->selection_end ([$row, $col])
730 1192
731Return the current values of the selection mark, begin or end positions, 1193Return the current values of the selection mark, begin or end positions,
732and optionally set them to new values. 1194and optionally set them to new values.
733 1195
1196=item $term->selection_make ($eventtime[, $rectangular])
1197
1198Tries to make a selection as set by C<selection_beg> and
1199C<selection_end>. If C<$rectangular> is true (default: false), a
1200rectangular selection will be made. This is the prefered function to make
1201a selection.
1202
734=item $success = $term->selection_grab ($eventtime) 1203=item $success = $term->selection_grab ($eventtime)
735 1204
736Try to request the primary selection from the server (for example, as set 1205Try to request the primary selection text from the server (for example, as
737by the next method). 1206set by the next method). No visual feedback will be given. This function
1207is mostly useful from within C<on_sel_grab> hooks.
738 1208
739=item $oldtext = $term->selection ([$newtext]) 1209=item $oldtext = $term->selection ([$newtext])
740 1210
741Return the current selection text and optionally replace it by C<$newtext>. 1211Return the current selection text and optionally replace it by C<$newtext>.
742 1212
743#=item $term->overlay ($x, $y, $text) 1213=item $term->overlay_simple ($x, $y, $text)
744# 1214
745#Create a simple multi-line overlay box. See the next method for details. 1215Create a simple multi-line overlay box. See the next method for details.
746# 1216
747#=cut 1217=cut
748# 1218
749#sub urxvt::term::scr_overlay { 1219sub overlay_simple {
750# my ($self, $x, $y, $text) = @_; 1220 my ($self, $x, $y, $text) = @_;
751# 1221
752# my @lines = split /\n/, $text; 1222 my @lines = split /\n/, $text;
753# 1223
754# my $w = 0; 1224 my $w = List::Util::max map $self->strwidth ($_), @lines;
755# for (map $self->strwidth ($_), @lines) { 1225
756# $w = $_ if $w < $_;
757# }
758#
759# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1226 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
760# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1227 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
761#} 1228
1229 $overlay
1230}
762 1231
763=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1232=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
764 1233
765Create a new (empty) overlay at the given position with the given 1234Create a new (empty) overlay at the given position with the given
766width/height. C<$rstyle> defines the initial rendition style 1235width/height. C<$rstyle> defines the initial rendition style
833 1302
834=item $string = $term->locale_decode ($octets) 1303=item $string = $term->locale_decode ($octets)
835 1304
836Convert the given locale-encoded octets into a perl string. 1305Convert the given locale-encoded octets into a perl string.
837 1306
1307=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1308
1309XORs the rendition values in the given span with the provided value
1310(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1311refresh hooks to provide effects similar to the selection.
1312
1313=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1314
1315Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1316whitespace will additionally be xored with the C<$rstyle2>, which defaults
1317to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1318it instead. Both styles I<MUST NOT> contain font styles.
1319
1320=item $term->scr_bell
1321
1322Ring the bell!
1323
838=item $term->scr_add_lines ($string) 1324=item $term->scr_add_lines ($string)
839 1325
840Write the given text string to the screen, as if output by the application 1326Write the given text string to the screen, as if output by the application
841running inside the terminal. It may not contain command sequences (escape 1327running inside the terminal. It may not contain command sequences (escape
842codes), but is free to use line feeds, carriage returns and tabs. The 1328codes), but is free to use line feeds, carriage returns and tabs. The
844 1330
845Normally its not a good idea to use this function, as programs might be 1331Normally its not a good idea to use this function, as programs might be
846confused by changes in cursor position or scrolling. Its useful inside a 1332confused by changes in cursor position or scrolling. Its useful inside a
847C<on_add_lines> hook, though. 1333C<on_add_lines> hook, though.
848 1334
1335=item $term->scr_change_screen ($screen)
1336
1337Switch to given screen - 0 primary, 1 secondary.
1338
849=item $term->cmd_parse ($octets) 1339=item $term->cmd_parse ($octets)
850 1340
851Similar to C<scr_add_lines>, but the argument must be in the 1341Similar to C<scr_add_lines>, but the argument must be in the
852locale-specific encoding of the terminal and can contain command sequences 1342locale-specific encoding of the terminal and can contain command sequences
853(escape codes) that will be interpreted. 1343(escape codes) that will be interpreted.
856 1346
857Write the octets given in C<$data> to the tty (i.e. as program input). To 1347Write the octets given in C<$data> to the tty (i.e. as program input). To
858pass characters instead of octets, you should convert your strings first 1348pass characters instead of octets, you should convert your strings first
859to the locale-specific encoding using C<< $term->locale_encode >>. 1349to the locale-specific encoding using C<< $term->locale_encode >>.
860 1350
1351=item $old_events = $term->pty_ev_events ([$new_events])
1352
1353Replaces the event mask of the pty watcher by the given event mask. Can
1354be used to suppress input and output handling to the pty/tty. See the
1355description of C<< urxvt::timer->events >>. Make sure to always restore
1356the previous value.
1357
1358=item $fd = $term->pty_fd
1359
1360Returns the master file descriptor for the pty in use, or C<-1> if no pty
1361is used.
1362
861=item $windowid = $term->parent 1363=item $windowid = $term->parent
862 1364
863Return the window id of the toplevel window. 1365Return the window id of the toplevel window.
864 1366
865=item $windowid = $term->vt 1367=item $windowid = $term->vt
866 1368
867Return the window id of the terminal window. 1369Return the window id of the terminal window.
868 1370
1371=item $term->vt_emask_add ($x_event_mask)
1372
1373Adds the specified events to the vt event mask. Useful e.g. when you want
1374to receive pointer events all the times:
1375
1376 $term->vt_emask_add (urxvt::PointerMotionMask);
1377
869=item $window_width = $term->width 1378=item $window_width = $term->width
870 1379
871=item $window_height = $term->height 1380=item $window_height = $term->height
872 1381
873=item $font_width = $term->fwidth 1382=item $font_width = $term->fwidth
886 1395
887=item $max_scrollback = $term->saveLines 1396=item $max_scrollback = $term->saveLines
888 1397
889=item $nrow_plus_saveLines = $term->total_rows 1398=item $nrow_plus_saveLines = $term->total_rows
890 1399
891=item $lines_in_scrollback = $term->nsaved 1400=item $topmost_scrollback_row = $term->top_row
892 1401
893Return various integers describing terminal characteristics. 1402Return various integers describing terminal characteristics.
1403
1404=item $x_display = $term->display_id
1405
1406Return the DISPLAY used by rxvt-unicode.
1407
1408=item $lc_ctype = $term->locale
1409
1410Returns the LC_CTYPE category string used by this rxvt-unicode.
1411
1412=item $env = $term->env
1413
1414Returns a copy of the environment in effect for the terminal as a hashref
1415similar to C<\%ENV>.
1416
1417=cut
1418
1419sub env {
1420 if (my $env = $_[0]->_env) {
1421 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1422 } else {
1423 +{ %ENV }
1424 }
1425}
894 1426
895=item $modifiermask = $term->ModLevel3Mask 1427=item $modifiermask = $term->ModLevel3Mask
896 1428
897=item $modifiermask = $term->ModMetaMask 1429=item $modifiermask = $term->ModMetaMask
898 1430
899=item $modifiermask = $term->ModNumLockMask 1431=item $modifiermask = $term->ModNumLockMask
900 1432
901Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1433Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
902AltGr), the meta key (often Alt) and the num lock key, if applicable. 1434AltGr), the meta key (often Alt) and the num lock key, if applicable.
903 1435
1436=item $screen = $term->current_screen
1437
1438Returns the currently displayed screen (0 primary, 1 secondary).
1439
1440=item $cursor_is_hidden = $term->hidden_cursor
1441
1442Returns wether the cursor is currently hidden or not.
1443
904=item $view_start = $term->view_start ([$newvalue]) 1444=item $view_start = $term->view_start ([$newvalue])
905 1445
906Returns the negative row number of the topmost line. Minimum value is 1446Returns the row number of the topmost displayed line. Maximum value is
907C<0>, which displays the normal terminal contents. Larger values scroll 1447C<0>, which displays the normal terminal contents. Lower values scroll
908this many lines into the scrollback buffer. 1448this many lines into the scrollback buffer.
909 1449
910=item $term->want_refresh 1450=item $term->want_refresh
911 1451
912Requests a screen refresh. At the next opportunity, rxvt-unicode will 1452Requests a screen refresh. At the next opportunity, rxvt-unicode will
927line, starting at column C<$start_col> (default C<0>), which is useful 1467line, starting at column C<$start_col> (default C<0>), which is useful
928to replace only parts of a line. The font index in the rendition will 1468to replace only parts of a line. The font index in the rendition will
929automatically be updated. 1469automatically be updated.
930 1470
931C<$text> is in a special encoding: tabs and wide characters that use more 1471C<$text> is in a special encoding: tabs and wide characters that use more
932than one cell when displayed are padded with urxvt::NOCHAR characters 1472than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
933(C<chr 65535>). Characters with combining characters and other characters 1473characters. Characters with combining characters and other characters that
934that do not fit into the normal tetx encoding will be replaced with 1474do not fit into the normal tetx encoding will be replaced with characters
935characters in the private use area. 1475in the private use area.
936 1476
937You have to obey this encoding when changing text. The advantage is 1477You have to obey this encoding when changing text. The advantage is
938that C<substr> and similar functions work on screen cells and not on 1478that C<substr> and similar functions work on screen cells and not on
939characters. 1479characters.
940 1480
991Return the row number of the first/last row of the line, respectively. 1531Return the row number of the first/last row of the line, respectively.
992 1532
993=item $offset = $line->offset_of ($row, $col) 1533=item $offset = $line->offset_of ($row, $col)
994 1534
995Returns the character offset of the given row|col pair within the logical 1535Returns the character offset of the given row|col pair within the logical
996line. 1536line. Works for rows outside the line, too, and returns corresponding
1537offsets outside the string.
997 1538
998=item ($row, $col) = $line->coord_of ($offset) 1539=item ($row, $col) = $line->coord_of ($offset)
999 1540
1000Translates a string offset into terminal coordinates again. 1541Translates a string offset into terminal coordinates again.
1001 1542
1075 $offset / $self->{ncol} + $self->{beg}, 1616 $offset / $self->{ncol} + $self->{beg},
1076 $offset % $self->{ncol} 1617 $offset % $self->{ncol}
1077 ) 1618 )
1078} 1619}
1079 1620
1080=item ($row, $col) = $line->coord_of ($offset)
1081=item $text = $term->special_encode $string 1621=item $text = $term->special_encode $string
1082 1622
1083Converts a perl string into the special encoding used by rxvt-unicode, 1623Converts a perl string into the special encoding used by rxvt-unicode,
1084where one character corresponds to one screen cell. See 1624where one character corresponds to one screen cell. See
1085C<< $term->ROW_t >> for details. 1625C<< $term->ROW_t >> for details.
1087=item $string = $term->special_decode $text 1627=item $string = $term->special_decode $text
1088 1628
1089Converts rxvt-unicodes text reprsentation into a perl string. See 1629Converts rxvt-unicodes text reprsentation into a perl string. See
1090C<< $term->ROW_t >> for details. 1630C<< $term->ROW_t >> for details.
1091 1631
1632=item $success = $term->grab_button ($button, $modifiermask)
1633
1634Registers a synchronous button grab. See the XGrabButton manpage.
1635
1636=item $success = $term->grab ($eventtime[, $sync])
1637
1638Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1639synchronous (C<$sync> is true). Also remembers the grab timestampe.
1640
1641=item $term->allow_events_async
1642
1643Calls XAllowEvents with AsyncBoth for the most recent grab.
1644
1645=item $term->allow_events_sync
1646
1647Calls XAllowEvents with SyncBoth for the most recent grab.
1648
1649=item $term->allow_events_replay
1650
1651Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1652recent grab.
1653
1654=item $term->ungrab
1655
1656Calls XUngrab for the most recent grab. Is called automatically on
1657evaluation errors, as it is better to lose the grab in the error case as
1658the session.
1659
1660=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1661
1662=item $atom_name = $term->XGetAtomName ($atom)
1663
1664=item @atoms = $term->XListProperties ($window)
1665
1666=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1667
1668=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1669
1670=item $term->XDeleteProperty ($window, $property)
1671
1672=item $window = $term->DefaultRootWindow
1673
1674=item $term->XReparentWindow ($window, $parent, [$x, $y])
1675
1676=item $term->XMapWindow ($window)
1677
1678=item $term->XUnmapWindow ($window)
1679
1680=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1681
1682=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1683
1684=item $term->XChangeInput ($window, $add_events[, $del_events])
1685
1686Various X or X-related functions. The C<$term> object only serves as
1687the source of the display, otherwise those functions map more-or-less
1688directory onto the X functions of the same name.
1689
1092=back 1690=back
1093 1691
1094=cut 1692=cut
1095 1693
1096package urxvt::popup; 1694package urxvt::popup;
1111 $item->{render} ||= sub { $_[0]{text} }; 1709 $item->{render} ||= sub { $_[0]{text} };
1112 1710
1113 push @{ $self->{item} }, $item; 1711 push @{ $self->{item} }, $item;
1114} 1712}
1115 1713
1116sub add_separator { 1714=item $popup->add_title ($title)
1117 my ($self, $sep) = @_;
1118 1715
1119 $sep ||= "═"; 1716Adds a non-clickable title to the popup.
1120 1717
1121 $self->add_item ({ 1718=cut
1122 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1123 text => "",
1124 render => sub { $sep x $urxvt::TERM->ncol },
1125 activate => sub { },
1126 });
1127}
1128 1719
1129sub add_title { 1720sub add_title {
1130 my ($self, $title) = @_; 1721 my ($self, $title) = @_;
1131 1722
1132 $self->add_item ({ 1723 $self->add_item ({
1134 text => $title, 1725 text => $title,
1135 activate => sub { }, 1726 activate => sub { },
1136 }); 1727 });
1137} 1728}
1138 1729
1730=item $popup->add_separator ([$sepchr])
1731
1732Creates a separator, optionally using the character given as C<$sepchr>.
1733
1734=cut
1735
1736sub add_separator {
1737 my ($self, $sep) = @_;
1738
1739 $sep ||= "=";
1740
1741 $self->add_item ({
1742 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1743 text => "",
1744 render => sub { $sep x $self->{term}->ncol },
1745 activate => sub { },
1746 });
1747}
1748
1749=item $popup->add_button ($text, $cb)
1750
1751Adds a clickable button to the popup. C<$cb> is called whenever it is
1752selected.
1753
1754=cut
1755
1139sub add_button { 1756sub add_button {
1140 my ($self, $text, $cb) = @_; 1757 my ($self, $text, $cb) = @_;
1141 1758
1142 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1759 $self->add_item ({ type => "button", text => $text, activate => $cb});
1143} 1760}
1761
1762=item $popup->add_toggle ($text, $cb, $initial_value)
1763
1764Adds a toggle/checkbox item to the popup. Teh callback gets called
1765whenever it gets toggled, with a boolean indicating its value as its first
1766argument.
1767
1768=cut
1144 1769
1145sub add_toggle { 1770sub add_toggle {
1146 my ($self, $text, $cb, $value) = @_; 1771 my ($self, $text, $cb, $value) = @_;
1147 1772
1148 my $item; $item = { 1773 my $item; $item = {
1149 type => "button", 1774 type => "button",
1150 text => " $text", 1775 text => " $text",
1151 value => $value, 1776 value => $value,
1152 render => sub { ($item->{value} ? "* " : " ") . $text }, 1777 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1153 activate => sub { $cb->($item->{value} = !$item->{value}); }, 1778 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1154 }; 1779 };
1155 1780
1156 $self->add_item ($item); 1781 $self->add_item ($item);
1157} 1782}
1783
1784=item $popup->show
1785
1786Displays the popup (which is initially hidden).
1787
1788=cut
1158 1789
1159sub show { 1790sub show {
1160 my ($self) = @_; 1791 my ($self) = @_;
1161 1792
1162 local $urxvt::popup::self = $self; 1793 local $urxvt::popup::self = $self;
1163 1794
1164 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1795 my $env = $self->{term}->env;
1796 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1797 delete $env->{LC_ALL};
1798 $env->{LC_CTYPE} = $self->{term}->locale;
1799
1800 urxvt::term->new ($env, "popup",
1801 "--perl-lib" => "", "--perl-ext-common" => "",
1802 "-pty-fd" => -1, "-sl" => 0,
1803 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1165 "--transient-for" => $self->{term}->parent, 1804 "--transient-for" => $self->{term}->parent,
1805 "-display" => $self->{term}->display_id,
1166 "-pe" => "urxvt-popup") 1806 "-pe" => "urxvt-popup")
1167 or die "unable to create popup window\n"; 1807 or die "unable to create popup window\n";
1168} 1808}
1169 1809
1170sub DESTROY { 1810sub DESTROY {
1171 my ($self) = @_; 1811 my ($self) = @_;
1172 1812
1813 delete $self->{term}{_destroy}{$self};
1173 $self->{term}->ungrab; 1814 $self->{term}->ungrab;
1174} 1815}
1816
1817=back
1818
1819=cut
1820
1821package urxvt::watcher;
1822
1823@urxvt::timer::ISA = __PACKAGE__;
1824@urxvt::iow::ISA = __PACKAGE__;
1825@urxvt::pw::ISA = __PACKAGE__;
1826@urxvt::iw::ISA = __PACKAGE__;
1175 1827
1176=head2 The C<urxvt::timer> Class 1828=head2 The C<urxvt::timer> Class
1177 1829
1178This class implements timer watchers/events. Time is represented as a 1830This class implements timer watchers/events. Time is represented as a
1179fractional number of seconds since the epoch. Example: 1831fractional number of seconds since the epoch. Example:
1218 1870
1219=item $timer = $timer->start ($tstamp) 1871=item $timer = $timer->start ($tstamp)
1220 1872
1221Set the event trigger time to C<$tstamp> and start the timer. 1873Set the event trigger time to C<$tstamp> and start the timer.
1222 1874
1875=item $timer = $timer->after ($delay)
1876
1877Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1878
1223=item $timer = $timer->stop 1879=item $timer = $timer->stop
1224 1880
1225Stop the timer. 1881Stop the timer.
1226 1882
1227=back 1883=back
1232 1888
1233 $term->{socket} = ... 1889 $term->{socket} = ...
1234 $term->{iow} = urxvt::iow 1890 $term->{iow} = urxvt::iow
1235 ->new 1891 ->new
1236 ->fd (fileno $term->{socket}) 1892 ->fd (fileno $term->{socket})
1237 ->events (1) # wait for read data 1893 ->events (urxvt::EVENT_READ)
1238 ->start 1894 ->start
1239 ->cb (sub { 1895 ->cb (sub {
1240 my ($iow, $revents) = @_; 1896 my ($iow, $revents) = @_;
1241 # $revents must be 1 here, no need to check 1897 # $revents must be 1 here, no need to check
1242 sysread $term->{socket}, my $buf, 8192 1898 sysread $term->{socket}, my $buf, 8192
1259 1915
1260Set the filedescriptor (not handle) to watch. 1916Set the filedescriptor (not handle) to watch.
1261 1917
1262=item $iow = $iow->events ($eventmask) 1918=item $iow = $iow->events ($eventmask)
1263 1919
1264Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1920Set the event mask to watch. The only allowed values are
1265data, Bit #1 (value C<2>) enables watching for write data. 1921C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1922together, or C<urxvt::EVENT_NONE>.
1266 1923
1267=item $iow = $iow->start 1924=item $iow = $iow->start
1268 1925
1269Start watching for requested events on the given handle. 1926Start watching for requested events on the given handle.
1270 1927
1271=item $iow = $iow->stop 1928=item $iow = $iow->stop
1272 1929
1273Stop watching for events on the given filehandle. 1930Stop watching for events on the given filehandle.
1931
1932=back
1933
1934=head2 The C<urxvt::iw> Class
1935
1936This class implements idle watchers, that get called automatically when
1937the process is idle. They should return as fast as possible, after doing
1938some useful work.
1939
1940=over 4
1941
1942=item $iw = new urxvt::iw
1943
1944Create a new idle watcher object in stopped state.
1945
1946=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1947
1948Set the callback to be called when the watcher triggers.
1949
1950=item $timer = $timer->start
1951
1952Start the watcher.
1953
1954=item $timer = $timer->stop
1955
1956Stop the watcher.
1957
1958=back
1959
1960=head2 The C<urxvt::pw> Class
1961
1962This class implements process watchers. They create an event whenever a
1963process exits, after which they stop automatically.
1964
1965 my $pid = fork;
1966 ...
1967 $term->{pw} = urxvt::pw
1968 ->new
1969 ->start ($pid)
1970 ->cb (sub {
1971 my ($pw, $exit_status) = @_;
1972 ...
1973 });
1974
1975=over 4
1976
1977=item $pw = new urxvt::pw
1978
1979Create a new process watcher in stopped state.
1980
1981=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1982
1983Set the callback to be called when the timer triggers.
1984
1985=item $pw = $timer->start ($pid)
1986
1987Tells the wqtcher to start watching for process C<$pid>.
1988
1989=item $pw = $pw->stop
1990
1991Stop the watcher.
1274 1992
1275=back 1993=back
1276 1994
1277=head1 ENVIRONMENT 1995=head1 ENVIRONMENT
1278 1996
1281This variable controls the verbosity level of the perl extension. Higher 1999This variable controls the verbosity level of the perl extension. Higher
1282numbers indicate more verbose output. 2000numbers indicate more verbose output.
1283 2001
1284=over 4 2002=over 4
1285 2003
1286=item =0 - only fatal messages 2004=item == 0 - fatal messages
1287 2005
1288=item =3 - script loading and management 2006=item >= 3 - script loading and management
1289 2007
1290=item =10 - all events received 2008=item >=10 - all called hooks
2009
2010=item >=11 - hook reutrn values
1291 2011
1292=back 2012=back
1293 2013
1294=head1 AUTHOR 2014=head1 AUTHOR
1295 2015

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