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Revision 1.73 by root, Tue Jan 10 04:23:39 2006 UTC vs.
Revision 1.125 by root, Sun Jan 22 20:39:47 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
72You can look at the source of the selection extension to see more
73interesting uses, such as parsing a line from beginning to end.
74
75This extension also offers following bindable keyboard commands:
50 76
51=over 4 77=over 4
52 78
53=item rot13 79=item rot13
54 80
64runtime. 90runtime.
65 91
66=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
67 93
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection 94Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action. 95text into various other formats/action (such as uri unescaping, perl
96evaluation, web-browser starting etc.), depending on content.
70 97
98Other extensions can extend this popup menu by pushing a code reference
99onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
100popup is displayed.
101
102It's sole argument is the popup menu, which can be modified. The selection
103is in C<$_>, which can be used to decide wether to add something or not.
104It should either return nothing or a string and a code reference. The
105string will be used as button text and the code reference will be called
106when the button gets activated and should transform C<$_>.
107
108The following will add an entry C<a to b> that transforms all C<a>s in
109the selection to C<b>s, but only if the selection currently contains any
110C<a>s:
111
112 push @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
116
71=item searchable-scrollback (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
72 118
73Adds regex search functionality to the scrollback buffer, triggered by a 119Adds regex search functionality to the scrollback buffer, triggered
74hotkey (default: C<M-s>). When in search mode, terminal input/output is 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
75suspended, C</> starts an incremental regex search, C<n> searches further, 121input/output is suspended and a regex is displayed at the bottom of the
76C<p> jumps to the previous match. C<enter> leaves search mode at the 122screen.
77current position and C<escape> returns to the original position.
78 123
79=item digital-clock 124Inputting characters appends them to the regex and continues incremental
125search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
126search upwards/downwards in the scrollback buffer, C<End> jumps to the
127bottom. C<Escape> leaves search mode and returns to the point where search
128was started, while C<Enter> or C<Return> stay at the current position and
129additionally stores the first match in the current line into the primary
130selection.
80 131
81Displays a digital clock using the built-in overlay. 132=item readline (enabled by default)
133
134A support package that tries to make editing with readline easier. At the
135moment, it reacts to clicking with the left mouse button by trying to
136move the text cursor to this position. It does so by generating as many
137cursor-left or cursor-right keypresses as required (the this only works
138for programs that correctly support wide characters).
139
140To avoid too many false positives, this is only done when:
141
142=over 4
143
144=item - the tty is in ICANON state.
145
146=item - the text cursor is visible.
147
148=item - the primary screen is currently being displayed.
149
150=item - the mouse is on the same (multi-row-) line as the text cursor.
151
152=back
153
154The normal selection mechanism isn't disabled, so quick successive clicks
155might interfere with selection creation in harmless ways.
156
157=item selection-autotransform
158
159This selection allows you to do automatic transforms on a selection
160whenever a selection is made.
161
162It works by specifying perl snippets (most useful is a single C<s///>
163operator) that modify C<$_> as resources:
164
165 URxvt.selection-autotransform.0: transform
166 URxvt.selection-autotransform.1: transform
167 ...
168
169For example, the following will transform selections of the form
170C<filename:number>, often seen in compiler messages, into C<vi +$filename
171$word>:
172
173 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
174
175And this example matches the same,but replaces it with vi-commands you can
176paste directly into your (vi :) editor:
177
178 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
179
180Of course, this can be modified to suit your needs and your editor :)
181
182To expand the example above to typical perl error messages ("XXX at
183FILENAME line YYY."), you need a slightly more elaborate solution:
184
185 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
186 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
187
188The first line tells the selection code to treat the unchanging part of
189every error message as a selection pattern, and the second line transforms
190the message into vi commands to load the file.
191
192=item tabbed
193
194This transforms the terminal into a tabbar with additional terminals, that
195is, it implements what is commonly refered to as "tabbed terminal". The topmost line
196displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
197button per tab.
198
199Clicking a button will activate that tab. Pressing B<Shift-Left> and
200B<Shift-Right> will switch to the tab left or right of the current one,
201while B<Shift-Down> creates a new tab.
82 202
83=item mark-urls 203=item mark-urls
84 204
85Uses per-line display filtering (C<on_line_update>) to underline urls. 205Uses per-line display filtering (C<on_line_update>) to underline urls and
206make them clickable. When middle-clicked, the program specified in the
207resource C<urlLauncher> (default C<x-www-browser>) will be started with
208the URL as first argument.
209
210=item automove-background
211
212This is basically a one-line extension that dynamically changes the background pixmap offset
213to the window position, in effect creating the same effect as pseudo transparency with
214a custom pixmap. No scaling is supported in this mode. Exmaple:
215
216 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
86 217
87=item block-graphics-to-ascii 218=item block-graphics-to-ascii
88 219
89A not very useful example of filtering all text output to the terminal, 220A not very useful example of filtering all text output to the terminal,
90by replacing all line-drawing characters (U+2500 .. U+259F) by a 221by replacing all line-drawing characters (U+2500 .. U+259F) by a
91similar-looking ascii character. 222similar-looking ascii character.
92 223
224=item digital-clock
225
226Displays a digital clock using the built-in overlay.
227
93=item example-refresh-hooks 228=item example-refresh-hooks
94 229
95Displays a very simple digital clock in the upper right corner of the 230Displays a very simple digital clock in the upper right corner of the
96window. Illustrates overwriting the refresh callbacks to create your own 231window. Illustrates overwriting the refresh callbacks to create your own
97overlays or changes. 232overlays or changes.
98 233
234=item selection-pastebin
235
236This is a little rarely useful extension that Uploads the selection as
237textfile to a remote site (or does other things). (The implementation is
238not currently secure for use in a multiuser environment as it writes to
239F</tmp> directly.).
240
241It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
242i.e.
243
244 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
245
246Pressing this combination runs a command with C<%> replaced by the name of
247the textfile. This command can be set via a resource:
248
249 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
250
251And the default is likely not useful to anybody but the few people around
252here :)
253
254The name of the textfile is the hex encoded md5 sum of the selection, so
255the same content should lead to the same filename.
256
257After a successful upload the selection will be replaced by the text given
258in the C<selection-pastebin-url> resource (again, the % is the placeholder
259for the filename):
260
261 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
262
99=back 263=back
264
265=head1 API DOCUMENTATION
100 266
101=head2 General API Considerations 267=head2 General API Considerations
102 268
103All objects (such as terminals, time watchers etc.) are typical 269All objects (such as terminals, time watchers etc.) are typical
104reference-to-hash objects. The hash can be used to store anything you 270reference-to-hash objects. The hash can be used to store anything you
117=over 4 283=over 4
118 284
119=item $text 285=item $text
120 286
121Rxvt-unicodes special way of encoding text, where one "unicode" character 287Rxvt-unicodes special way of encoding text, where one "unicode" character
122always represents one screen cell. See L<row_t> for a discussion of this format. 288always represents one screen cell. See L<ROW_t> for a discussion of this format.
123 289
124=item $string 290=item $string
125 291
126A perl text string, with an emphasis on I<text>. It can store all unicode 292A perl text string, with an emphasis on I<text>. It can store all unicode
127characters and is to be distinguished with text encoded in a specific 293characters and is to be distinguished with text encoded in a specific
173called whenever the relevant event happens. 339called whenever the relevant event happens.
174 340
175The first argument passed to them is an extension oject as described in 341The first argument passed to them is an extension oject as described in
176the in the C<Extension Objects> section. 342the in the C<Extension Objects> section.
177 343
178B<All> of these hooks must return a boolean value. If it is true, then the 344B<All> of these hooks must return a boolean value. If any of the called
179event counts as being I<consumed>, and the invocation of other hooks is 345hooks returns true, then the event counts as being I<consumed>, and the
180skipped, and the relevant action might not be carried out by the C++ code. 346relevant action might not be carried out by the C++ code.
181 347
182I<< When in doubt, return a false value (preferably C<()>). >> 348I<< When in doubt, return a false value (preferably C<()>). >>
183 349
184=over 4 350=over 4
185 351
186=item on_init $term 352=item on_init $term
187 353
188Called after a new terminal object has been initialized, but before 354Called after a new terminal object has been initialized, but before
189windows are created or the command gets run. Most methods are unsafe to 355windows are created or the command gets run. Most methods are unsafe to
190call or deliver senseless data, as terminal size and other characteristics 356call or deliver senseless data, as terminal size and other characteristics
191have not yet been determined. You can safely query and change resources, 357have not yet been determined. You can safely query and change resources
192though. 358and options, though. For many purposes the C<on_start> hook is a better
359place.
360
361=item on_start $term
362
363Called at the very end of initialisation of a new terminal, just before
364trying to map (display) the toplevel and returning to the mainloop.
365
366=item on_destroy $term
367
368Called whenever something tries to destroy terminal, before doing anything
369yet. If this hook returns true, then destruction is skipped, but this is
370rarely a good idea.
193 371
194=item on_reset $term 372=item on_reset $term
195 373
196Called after the screen is "reset" for any reason, such as resizing or 374Called after the screen is "reset" for any reason, such as resizing or
197control sequences. Here is where you can react on changes to size-related 375control sequences. Here is where you can react on changes to size-related
198variables. 376variables.
199 377
200=item on_start $term 378=item on_child_start $term, $pid
201 379
202Called at the very end of initialisation of a new terminal, just before 380Called just after the child process has been C<fork>ed.
203returning to the mainloop. 381
382=item on_child_exit $term, $status
383
384Called just after the child process has exited. C<$status> is the status
385from C<waitpid>.
204 386
205=item on_sel_make $term, $eventtime 387=item on_sel_make $term, $eventtime
206 388
207Called whenever a selection has been made by the user, but before the 389Called whenever a selection has been made by the user, but before the
208selection text is copied, so changes to the beginning, end or type of the 390selection text is copied, so changes to the beginning, end or type of the
222=item on_sel_extend $term 404=item on_sel_extend $term
223 405
224Called whenever the user tries to extend the selection (e.g. with a double 406Called whenever the user tries to extend the selection (e.g. with a double
225click) and is either supposed to return false (normal operation), or 407click) and is either supposed to return false (normal operation), or
226should extend the selection itelf and return true to suppress the built-in 408should extend the selection itelf and return true to suppress the built-in
227processing. 409processing. This can happen multiple times, as long as the callback
410returns true, it will be called on every further click by the user and is
411supposed to enlarge the selection more and more, if possible.
228 412
229See the F<selection> example extension. 413See the F<selection> example extension.
230 414
231=item on_view_change $term, $offset 415=item on_view_change $term, $offset
232 416
299 483
300Called whenever the user presses a key combination that has a 484Called whenever the user presses a key combination that has a
301C<perl:string> action bound to it (see description of the B<keysym> 485C<perl:string> action bound to it (see description of the B<keysym>
302resource in the @@RXVT_NAME@@(1) manpage). 486resource in the @@RXVT_NAME@@(1) manpage).
303 487
488=item on_x_event $term, $event
489
490Called on every X event received on the vt window (and possibly other
491windows). Should only be used as a last resort. Most event structure
492members are not passed.
493
304=item on_focus_in $term 494=item on_focus_in $term
305 495
306Called whenever the window gets the keyboard focus, before rxvt-unicode 496Called whenever the window gets the keyboard focus, before rxvt-unicode
307does focus in processing. 497does focus in processing.
308 498
309=item on_focus_out $term 499=item on_focus_out $term
310 500
311Called wheneever the window loses keyboard focus, before rxvt-unicode does 501Called wheneever the window loses keyboard focus, before rxvt-unicode does
312focus out processing. 502focus out processing.
313 503
504=item on_configure_notify $term, $event
505
506=item on_property_notify $term, $event
507
314=item on_key_press $term, $event, $keysym, $octets 508=item on_key_press $term, $event, $keysym, $octets
315 509
316=item on_key_release $term, $event, $keysym 510=item on_key_release $term, $event, $keysym
317 511
318=item on_button_press $term, $event 512=item on_button_press $term, $event
327 521
328Called whenever the corresponding X event is received for the terminal If 522Called whenever the corresponding X event is received for the terminal If
329the hook returns true, then the even will be ignored by rxvt-unicode. 523the hook returns true, then the even will be ignored by rxvt-unicode.
330 524
331The event is a hash with most values as named by Xlib (see the XEvent 525The event is a hash with most values as named by Xlib (see the XEvent
332manpage), with the additional members C<row> and C<col>, which are the row 526manpage), with the additional members C<row> and C<col>, which are the
333and column under the mouse cursor. 527(real, not screen-based) row and column under the mouse cursor.
334 528
335C<on_key_press> additionally receives the string rxvt-unicode would 529C<on_key_press> additionally receives the string rxvt-unicode would
336output, if any, in locale-specific encoding. 530output, if any, in locale-specific encoding.
337 531
338subwindow. 532subwindow.
339 533
340=back 534=item on_client_message $term, $event
341 535
342=head2 Variables in the C<urxvt> Package 536=item on_wm_protocols $term, $event
343 537
344=over 4 538=item on_wm_delete_window $term, $event
345 539
346=item $urxvt::TERM 540Called when various types of ClientMessage events are received (all with
347 541format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
348The current terminal. This variable stores the current C<urxvt::term>
349object, whenever a callback/hook is executing.
350
351=back
352
353=head2 Functions in the C<urxvt> Package
354
355=over 4
356
357=item $term = new urxvt [arg...]
358
359Creates a new terminal, very similar as if you had started it with
360C<system $binfile, arg...>. Croaks (and probably outputs an error message)
361if the new instance couldn't be created. Returns C<undef> if the new
362instance didn't initialise perl, and the terminal object otherwise. The
363C<init> and C<start> hooks will be called during the call.
364
365=item urxvt::fatal $errormessage
366
367Fatally aborts execution with the given error message. Avoid at all
368costs! The only time this is acceptable is when the terminal process
369starts up.
370
371=item urxvt::warn $string
372
373Calls C<rxvt_warn> with the given string which should not include a
374newline. The module also overwrites the C<warn> builtin with a function
375that calls this function.
376
377Using this function has the advantage that its output ends up in the
378correct place, e.g. on stderr of the connecting urxvtc client.
379
380=item $is_safe = urxvt::safe
381
382Returns true when it is safe to do potentially unsafe things, such as
383evaluating perl code specified by the user. This is true when urxvt was
384started setuid or setgid.
385
386=item $time = urxvt::NOW
387
388Returns the "current time" (as per the event loop).
389
390=item urxvt::CurrentTime
391
392=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
393Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
394Button4Mask, Button5Mask, AnyModifier
395
396Various constants for use in X calls and event processing.
397
398=back
399
400=head2 RENDITION
401
402Rendition bitsets contain information about colour, font, font styles and
403similar information for each screen cell.
404
405The following "macros" deal with changes in rendition sets. You should
406never just create a bitset, you should always modify an existing one,
407as they contain important information required for correct operation of
408rxvt-unicode.
409
410=over 4
411
412=item $rend = urxvt::DEFAULT_RSTYLE
413
414Returns the default rendition, as used when the terminal is starting up or
415being reset. Useful as a base to start when creating renditions.
416
417=item $rend = urxvt::OVERLAY_RSTYLE
418
419Return the rendition mask used for overlays by default.
420
421=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
422
423Return the bit that enabled bold, italic, blink, reverse-video and
424underline, respectively. To enable such a style, just logically OR it into
425the bitset.
426
427=item $foreground = urxvt::GET_BASEFG $rend
428
429=item $background = urxvt::GET_BASEBG $rend
430
431Return the foreground/background colour index, respectively.
432
433=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
434
435=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
436
437Replace the foreground/background colour in the rendition mask with the
438specified one.
439
440=item $value = urxvt::GET_CUSTOM ($rend)
441
442Return the "custom" value: Every rendition has 5 bits for use by
443extensions. They can be set and changed as you like and are initially
444zero.
445
446=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
447
448Change the custom value.
449 542
450=back 543=back
451 544
452=cut 545=cut
453 546
459use Scalar::Util (); 552use Scalar::Util ();
460use List::Util (); 553use List::Util ();
461 554
462our $VERSION = 1; 555our $VERSION = 1;
463our $TERM; 556our $TERM;
557our @TERM_INIT;
558our @TERM_EXT;
464our @HOOKNAME; 559our @HOOKNAME;
465our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 560our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
466our %OPTION; 561our %OPTION;
467 562
468our $LIBDIR; 563our $LIBDIR;
469our $RESNAME; 564our $RESNAME;
470our $RESCLASS; 565our $RESCLASS;
471our $RXVTNAME; 566our $RXVTNAME;
472 567
568our $NOCHAR = chr 0xffff;
569
570=head2 Variables in the C<urxvt> Package
571
572=over 4
573
574=item $urxvt::LIBDIR
575
576The rxvt-unicode library directory, where, among other things, the perl
577modules and scripts are stored.
578
579=item $urxvt::RESCLASS, $urxvt::RESCLASS
580
581The resource class and name rxvt-unicode uses to look up X resources.
582
583=item $urxvt::RXVTNAME
584
585The basename of the installed binaries, usually C<urxvt>.
586
587=item $urxvt::TERM
588
589The current terminal. This variable stores the current C<urxvt::term>
590object, whenever a callback/hook is executing.
591
592=item @urxvt::TERM_INIT
593
594All coderefs in this array will be called as methods of the next newly
595created C<urxvt::term> object (during the C<on_init> phase). The array
596gets cleared before the codereferences that were in it are being executed,
597so coderefs can push themselves onto it again if they so desire.
598
599This complements to the perl-eval commandline option, but gets executed
600first.
601
602=item @urxvt::TERM_EXT
603
604Works similar to C<@TERM_INIT>, but contains perl package/class names, which
605get registered as normal extensions after calling the hooks in C<@TERM_INIT>
606but before other extensions. Gets cleared just like C<@TERM_INIT>.
607
608=back
609
610=head2 Functions in the C<urxvt> Package
611
612=over 4
613
614=item urxvt::fatal $errormessage
615
616Fatally aborts execution with the given error message. Avoid at all
617costs! The only time this is acceptable is when the terminal process
618starts up.
619
620=item urxvt::warn $string
621
622Calls C<rxvt_warn> with the given string which should not include a
623newline. The module also overwrites the C<warn> builtin with a function
624that calls this function.
625
626Using this function has the advantage that its output ends up in the
627correct place, e.g. on stderr of the connecting urxvtc client.
628
629Messages have a size limit of 1023 bytes currently.
630
631=item $time = urxvt::NOW
632
633Returns the "current time" (as per the event loop).
634
635=item urxvt::CurrentTime
636
637=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
638Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
639Button4Mask, Button5Mask, AnyModifier
640
641=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
642ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
643PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
644Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
645KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
646ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
647FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
648
649=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
650EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
651GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
652UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
653ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
654CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
655SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
656
657Various constants for use in X calls and event processing.
658
659=back
660
661=head2 RENDITION
662
663Rendition bitsets contain information about colour, font, font styles and
664similar information for each screen cell.
665
666The following "macros" deal with changes in rendition sets. You should
667never just create a bitset, you should always modify an existing one,
668as they contain important information required for correct operation of
669rxvt-unicode.
670
671=over 4
672
673=item $rend = urxvt::DEFAULT_RSTYLE
674
675Returns the default rendition, as used when the terminal is starting up or
676being reset. Useful as a base to start when creating renditions.
677
678=item $rend = urxvt::OVERLAY_RSTYLE
679
680Return the rendition mask used for overlays by default.
681
682=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
683
684Return the bit that enabled bold, italic, blink, reverse-video and
685underline, respectively. To enable such a style, just logically OR it into
686the bitset.
687
688=item $foreground = urxvt::GET_BASEFG $rend
689
690=item $background = urxvt::GET_BASEBG $rend
691
692Return the foreground/background colour index, respectively.
693
694=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
695
696=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
697
698Replace the foreground/background colour in the rendition mask with the
699specified one.
700
701=item $value = urxvt::GET_CUSTOM $rend
702
703Return the "custom" value: Every rendition has 5 bits for use by
704extensions. They can be set and changed as you like and are initially
705zero.
706
707=item $rend = urxvt::SET_CUSTOM $rend, $new_value
708
709Change the custom value.
710
711=back
712
713=cut
714
473BEGIN { 715BEGIN {
474 urxvt->bootstrap;
475
476 # overwrite perl's warn 716 # overwrite perl's warn
477 *CORE::GLOBAL::warn = sub { 717 *CORE::GLOBAL::warn = sub {
478 my $msg = join "", @_; 718 my $msg = join "", @_;
479 $msg .= "\n" 719 $msg .= "\n"
480 unless $msg =~ /\n$/; 720 unless $msg =~ /\n$/;
481 urxvt::warn ($msg); 721 urxvt::warn ($msg);
482 }; 722 };
483
484 delete $ENV{IFS};
485 delete $ENV{CDPATH};
486 delete $ENV{BASH_ENV};
487 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
488} 723}
489 724
490my @hook_count; 725no warnings 'utf8';
726
491my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 727my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
492 728
493sub verbose { 729sub verbose {
494 my ($level, $msg) = @_; 730 my ($level, $msg) = @_;
495 warn "$msg\n" if $level <= $verbosity; 731 warn "$msg\n" if $level <= $verbosity;
496} 732}
497 733
498my $extension_pkg = "extension0000";
499my %extension_pkg; 734my %extension_pkg;
500 735
501# load a single script into its own package, once only 736# load a single script into its own package, once only
502sub extension_package($) { 737sub extension_package($) {
503 my ($path) = @_; 738 my ($path) = @_;
504 739
505 $extension_pkg{$path} ||= do { 740 $extension_pkg{$path} ||= do {
506 my $pkg = "urxvt::" . ($extension_pkg++); 741 $path =~ /([^\/\\]+)$/;
742 my $pkg = $1;
743 $pkg =~ s/[^[:word:]]/_/g;
744 $pkg = "urxvt::ext::$pkg";
507 745
508 verbose 3, "loading extension '$path' into package '$pkg'"; 746 verbose 3, "loading extension '$path' into package '$pkg'";
509 747
510 open my $fh, "<:raw", $path 748 open my $fh, "<:raw", $path
511 or die "$path: $!"; 749 or die "$path: $!";
512 750
513 my $source = untaint 751 my $source =
514 "package $pkg; use strict; use utf8;\n" 752 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
515 . "use base urxvt::term::extension::;\n"
516 . "#line 1 \"$path\"\n{\n" 753 . "#line 1 \"$path\"\n{\n"
517 . (do { local $/; <$fh> }) 754 . (do { local $/; <$fh> })
518 . "\n};\n1"; 755 . "\n};\n1";
519 756
520 eval $source 757 eval $source
534 if ($htype == 0) { # INIT 771 if ($htype == 0) { # INIT
535 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 772 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
536 773
537 my %ext_arg; 774 my %ext_arg;
538 775
776 {
777 my @init = @TERM_INIT;
778 @TERM_INIT = ();
779 $_->($TERM) for @init;
780 my @pkg = @TERM_EXT;
781 @TERM_EXT = ();
782 $TERM->register_package ($_) for @pkg;
783 }
784
539 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 785 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
540 if ($_ eq "default") { 786 if ($_ eq "default") {
541 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 787 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
542 } elsif (/^-(.*)$/) { 788 } elsif (/^-(.*)$/) {
543 delete $ext_arg{$1}; 789 delete $ext_arg{$1};
544 } elsif (/^([^<]+)<(.*)>$/) { 790 } elsif (/^([^<]+)<(.*)>$/) {
545 push @{ $ext_arg{$1} }, $2; 791 push @{ $ext_arg{$1} }, $2;
546 } else { 792 } else {
569 if $verbosity >= 10; 815 if $verbosity >= 10;
570 816
571 keys %$cb; 817 keys %$cb;
572 818
573 while (my ($pkg, $cb) = each %$cb) { 819 while (my ($pkg, $cb) = each %$cb) {
574 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 820 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
575 and last; 821 $retval ||= $retval_;
576 822
577 if ($@) { 823 if ($@) {
578 $TERM->ungrab; # better to lose the grab than the session 824 $TERM->ungrab; # better to lose the grab than the session
579 warn $@; 825 warn $@;
580 } 826 }
581 } 827 }
828
829 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
830 if $verbosity >= 11;
582 } 831 }
583 832
584 if ($htype == 1) { # DESTROY 833 if ($htype == 1) { # DESTROY
585 if (my $hook = delete $TERM->{_hook}) {
586 for my $htype (0..$#$hook) {
587 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
588 or set_should_invoke $htype, 0;
589 }
590 }
591
592 # clear package objects 834 # clear package objects
593 %$_ = () for values %{ $TERM->{_pkg} }; 835 %$_ = () for values %{ $TERM->{_pkg} };
594 836
595 # clear package 837 # clear package
596 %$TERM = (); 838 %$TERM = ();
610 while (my ($name, $cb) = each %hook) { 852 while (my ($name, $cb) = each %hook) {
611 my $htype = $HOOKTYPE{uc $name}; 853 my $htype = $HOOKTYPE{uc $name};
612 defined $htype 854 defined $htype
613 or Carp::croak "unsupported hook type '$name'"; 855 or Carp::croak "unsupported hook type '$name'";
614 856
857 $self->set_should_invoke ($htype, +1)
615 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 858 unless exists $self->{term}{_hook}[$htype]{$pkg};
616 $hook_count[$htype]++
617 or urxvt::set_should_invoke $htype, 1;
618 }
619 859
620 $self->{term}{_hook}[$htype]{$pkg} = $cb; 860 $self->{term}{_hook}[$htype]{$pkg} = $cb;
621 } 861 }
622} 862}
623 863
628 for my $name (@hook) { 868 for my $name (@hook) {
629 my $htype = $HOOKTYPE{uc $name}; 869 my $htype = $HOOKTYPE{uc $name};
630 defined $htype 870 defined $htype
631 or Carp::croak "unsupported hook type '$name'"; 871 or Carp::croak "unsupported hook type '$name'";
632 872
873 $self->set_should_invoke ($htype, -1)
633 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 874 if delete $self->{term}{_hook}[$htype]{$pkg};
634 --$hook_count[$htype]
635 or urxvt::set_should_invoke $htype, 0;
636 }
637 } 875 }
638} 876}
639 877
640our $AUTOLOAD; 878our $AUTOLOAD;
641 879
672 910
673=head2 The C<urxvt::anyevent> Class 911=head2 The C<urxvt::anyevent> Class
674 912
675The sole purpose of this class is to deliver an interface to the 913The sole purpose of this class is to deliver an interface to the
676C<AnyEvent> module - any module using it will work inside urxvt without 914C<AnyEvent> module - any module using it will work inside urxvt without
677further work. The only exception is that you cannot wait on condition 915further programming. The only exception is that you cannot wait on
678variables, but non-blocking condvar use is ok. What this means is that you 916condition variables, but non-blocking condvar use is ok. What this means
679cannot use blocking APIs, but the non-blocking variant should work. 917is that you cannot use blocking APIs, but the non-blocking variant should
918work.
680 919
681=cut 920=cut
682 921
683our $VERSION = 1; 922our $VERSION = 1;
684 923
746# find on_xxx subs in the package and register them 985# find on_xxx subs in the package and register them
747# as hooks 986# as hooks
748sub register_package { 987sub register_package {
749 my ($self, $pkg, $argv) = @_; 988 my ($self, $pkg, $argv) = @_;
750 989
990 no strict 'refs';
991
992 urxvt::verbose 6, "register package $pkg to $self";
993
994 @{"$pkg\::ISA"} = urxvt::term::extension::;
995
751 my $proxy = bless { 996 my $proxy = bless {
752 _pkg => $pkg, 997 _pkg => $pkg,
753 argv => $argv, 998 argv => $argv,
754 }, $pkg; 999 }, $pkg;
755 Scalar::Util::weaken ($proxy->{term} = $self); 1000 Scalar::Util::weaken ($proxy->{term} = $self);
761 $proxy->enable ($name => $ref); 1006 $proxy->enable ($name => $ref);
762 } 1007 }
763 } 1008 }
764} 1009}
765 1010
1011=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1012
1013Creates a new terminal, very similar as if you had started it with system
1014C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1015hash which defines the environment of the new terminal.
1016
1017Croaks (and probably outputs an error message) if the new instance
1018couldn't be created. Returns C<undef> if the new instance didn't
1019initialise perl, and the terminal object otherwise. The C<init> and
1020C<start> hooks will be called during this call.
1021
1022=cut
1023
1024sub new {
1025 my ($class, $env, @args) = @_;
1026
1027 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
1028}
1029
766=item $term->destroy 1030=item $term->destroy
767 1031
768Destroy the terminal object (close the window, free resources etc.). 1032Destroy the terminal object (close the window, free resources
1033etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1034watchers (timers, io watchers) are still active.
1035
1036=item $term->exec_async ($cmd[, @args])
1037
1038Works like the combination of the C<fork>/C<exec> builtins, which executes
1039("starts") programs in the background. This function takes care of setting
1040the user environment before exec'ing the command (e.g. C<PATH>) and should
1041be preferred over explicit calls to C<exec> or C<system>.
1042
1043Returns the pid of the subprocess or C<undef> on error.
1044
1045=cut
1046
1047sub exec_async {
1048 my $self = shift;
1049
1050 my $pid = fork;
1051
1052 return $pid
1053 if !defined $pid or $pid;
1054
1055 %ENV = %{ $self->env };
1056
1057 exec @_;
1058 urxvt::_exit 255;
1059}
769 1060
770=item $isset = $term->option ($optval[, $set]) 1061=item $isset = $term->option ($optval[, $set])
771 1062
772Returns true if the option specified by C<$optval> is enabled, and 1063Returns true if the option specified by C<$optval> is enabled, and
773optionally change it. All option values are stored by name in the hash 1064optionally change it. All option values are stored by name in the hash
776Here is a a likely non-exhaustive list of option names, please see the 1067Here is a a likely non-exhaustive list of option names, please see the
777source file F</src/optinc.h> to see the actual list: 1068source file F</src/optinc.h> to see the actual list:
778 1069
779 borderLess console cursorBlink cursorUnderline hold iconic insecure 1070 borderLess console cursorBlink cursorUnderline hold iconic insecure
780 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1071 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
781 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1072 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
782 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1073 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
783 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1074 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
784 tripleclickwords utmpInhibit visualBell 1075 transparent tripleclickwords utmpInhibit visualBell
785 1076
786=item $value = $term->resource ($name[, $newval]) 1077=item $value = $term->resource ($name[, $newval])
787 1078
788Returns the current resource value associated with a given name and 1079Returns the current resource value associated with a given name and
789optionally sets a new value. Setting values is most useful in the C<init> 1080optionally sets a new value. Setting values is most useful in the C<init>
806 1097
807 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1098 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
808 borderLess color cursorBlink cursorUnderline cutchars delete_key 1099 borderLess color cursorBlink cursorUnderline cutchars delete_key
809 display_name embed ext_bwidth fade font geometry hold iconName 1100 display_name embed ext_bwidth fade font geometry hold iconName
810 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1101 imFont imLocale inputMethod insecure int_bwidth intensityStyles
811 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1102 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
812 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1103 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
813 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1104 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
814 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1105 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
815 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1106 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
816 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1107 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
817 shade term_name title transparent transparent_all tripleclickwords 1108 secondaryScreen secondaryScroll selectstyle shade term_name title
818 utmpInhibit visualBell 1109 transient_for transparent transparent_all tripleclickwords utmpInhibit
1110 visualBell
819 1111
820=cut 1112=cut
821 1113
822sub resource($$;$) { 1114sub resource($$;$) {
823 my ($self, $name) = (shift, shift); 1115 my ($self, $name) = (shift, shift);
824 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1116 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
825 &urxvt::term::_resource 1117 &urxvt::term::_resource
826} 1118}
827 1119
1120=item $value = $term->x_resource ($pattern)
1121
1122Returns the X-Resource for the given pattern, excluding the program or
1123class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1124same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1125resource with that pattern exists.
1126
1127This method should only be called during the C<on_start> hook, as there is
1128only one resource database per display, and later invocations might return
1129the wrong resources.
1130
828=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1131=item $success = $term->parse_keysym ($keysym_spec, $command_string)
829 1132
830Adds a keymap translation exactly as specified via a resource. See the 1133Adds a keymap translation exactly as specified via a resource. See the
831C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1134C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
832 1135
847=item ($row, $col) = $term->selection_end ([$row, $col]) 1150=item ($row, $col) = $term->selection_end ([$row, $col])
848 1151
849Return the current values of the selection mark, begin or end positions, 1152Return the current values of the selection mark, begin or end positions,
850and optionally set them to new values. 1153and optionally set them to new values.
851 1154
1155=item $term->selection_make ($eventtime[, $rectangular])
1156
1157Tries to make a selection as set by C<selection_beg> and
1158C<selection_end>. If C<$rectangular> is true (default: false), a
1159rectangular selection will be made. This is the prefered function to make
1160a selection.
1161
852=item $success = $term->selection_grab ($eventtime) 1162=item $success = $term->selection_grab ($eventtime)
853 1163
854Try to request the primary selection from the server (for example, as set 1164Try to request the primary selection text from the server (for example, as
855by the next method). 1165set by the next method). No visual feedback will be given. This function
1166is mostly useful from within C<on_sel_grab> hooks.
856 1167
857=item $oldtext = $term->selection ([$newtext]) 1168=item $oldtext = $term->selection ([$newtext])
858 1169
859Return the current selection text and optionally replace it by C<$newtext>. 1170Return the current selection text and optionally replace it by C<$newtext>.
860 1171
953Convert the given locale-encoded octets into a perl string. 1264Convert the given locale-encoded octets into a perl string.
954 1265
955=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) 1266=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
956 1267
957XORs the rendition values in the given span with the provided value 1268XORs the rendition values in the given span with the provided value
958(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar 1269(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
959to the selection. 1270refresh hooks to provide effects similar to the selection.
960 1271
961=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) 1272=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
962 1273
963Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1274Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
964whitespace will additionally be xored with the C<$rstyle2>, which defaults 1275whitespace will additionally be xored with the C<$rstyle2>, which defaults
965to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines 1276to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
966it instead. 1277it instead. Both styles I<MUST NOT> contain font styles.
967 1278
968=item $term->scr_bell 1279=item $term->scr_bell
969 1280
970Ring the bell! 1281Ring the bell!
971 1282
978 1289
979Normally its not a good idea to use this function, as programs might be 1290Normally its not a good idea to use this function, as programs might be
980confused by changes in cursor position or scrolling. Its useful inside a 1291confused by changes in cursor position or scrolling. Its useful inside a
981C<on_add_lines> hook, though. 1292C<on_add_lines> hook, though.
982 1293
1294=item $term->scr_change_screen ($screen)
1295
1296Switch to given screen - 0 primary, 1 secondary.
1297
983=item $term->cmd_parse ($octets) 1298=item $term->cmd_parse ($octets)
984 1299
985Similar to C<scr_add_lines>, but the argument must be in the 1300Similar to C<scr_add_lines>, but the argument must be in the
986locale-specific encoding of the terminal and can contain command sequences 1301locale-specific encoding of the terminal and can contain command sequences
987(escape codes) that will be interpreted. 1302(escape codes) that will be interpreted.
997Replaces the event mask of the pty watcher by the given event mask. Can 1312Replaces the event mask of the pty watcher by the given event mask. Can
998be used to suppress input and output handling to the pty/tty. See the 1313be used to suppress input and output handling to the pty/tty. See the
999description of C<< urxvt::timer->events >>. Make sure to always restore 1314description of C<< urxvt::timer->events >>. Make sure to always restore
1000the previous value. 1315the previous value.
1001 1316
1317=item $fd = $term->pty_fd
1318
1319Returns the master file descriptor for the pty in use, or C<-1> if no pty
1320is used.
1321
1002=item $windowid = $term->parent 1322=item $windowid = $term->parent
1003 1323
1004Return the window id of the toplevel window. 1324Return the window id of the toplevel window.
1005 1325
1006=item $windowid = $term->vt 1326=item $windowid = $term->vt
1007 1327
1008Return the window id of the terminal window. 1328Return the window id of the terminal window.
1009 1329
1330=item $term->vt_emask_add ($x_event_mask)
1331
1332Adds the specified events to the vt event mask. Useful e.g. when you want
1333to receive pointer events all the times:
1334
1335 $term->vt_emask_add (urxvt::PointerMotionMask);
1336
1010=item $window_width = $term->width 1337=item $window_width = $term->width
1011 1338
1012=item $window_height = $term->height 1339=item $window_height = $term->height
1013 1340
1014=item $font_width = $term->fwidth 1341=item $font_width = $term->fwidth
1027 1354
1028=item $max_scrollback = $term->saveLines 1355=item $max_scrollback = $term->saveLines
1029 1356
1030=item $nrow_plus_saveLines = $term->total_rows 1357=item $nrow_plus_saveLines = $term->total_rows
1031 1358
1032=item $lines_in_scrollback = $term->nsaved 1359=item $topmost_scrollback_row = $term->top_row
1033 1360
1034Return various integers describing terminal characteristics. 1361Return various integers describing terminal characteristics.
1035 1362
1363=item $x_display = $term->display_id
1364
1365Return the DISPLAY used by rxvt-unicode.
1366
1036=item $lc_ctype = $term->locale 1367=item $lc_ctype = $term->locale
1037 1368
1038Returns the LC_CTYPE category string used by this rxvt-unicode. 1369Returns the LC_CTYPE category string used by this rxvt-unicode.
1039 1370
1040=item $x_display = $term->display_id 1371=item $env = $term->env
1041 1372
1042Return the DISPLAY used by rxvt-unicode. 1373Returns a copy of the environment in effect for the terminal as a hashref
1374similar to C<\%ENV>.
1375
1376=cut
1377
1378sub env {
1379 if (my $env = $_[0]->_env) {
1380 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1381 } else {
1382 +{ %ENV }
1383 }
1384}
1043 1385
1044=item $modifiermask = $term->ModLevel3Mask 1386=item $modifiermask = $term->ModLevel3Mask
1045 1387
1046=item $modifiermask = $term->ModMetaMask 1388=item $modifiermask = $term->ModMetaMask
1047 1389
1048=item $modifiermask = $term->ModNumLockMask 1390=item $modifiermask = $term->ModNumLockMask
1049 1391
1050Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1392Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1051AltGr), the meta key (often Alt) and the num lock key, if applicable. 1393AltGr), the meta key (often Alt) and the num lock key, if applicable.
1052 1394
1395=item $screen = $term->current_screen
1396
1397Returns the currently displayed screen (0 primary, 1 secondary).
1398
1399=item $cursor_is_hidden = $term->hidden_cursor
1400
1401Returns wether the cursor is currently hidden or not.
1402
1053=item $view_start = $term->view_start ([$newvalue]) 1403=item $view_start = $term->view_start ([$newvalue])
1054 1404
1055Returns the negative row number of the topmost line. Minimum value is 1405Returns the row number of the topmost displayed line. Maximum value is
1056C<0>, which displays the normal terminal contents. Larger values scroll 1406C<0>, which displays the normal terminal contents. Lower values scroll
1057this many lines into the scrollback buffer. 1407this many lines into the scrollback buffer.
1058 1408
1059=item $term->want_refresh 1409=item $term->want_refresh
1060 1410
1061Requests a screen refresh. At the next opportunity, rxvt-unicode will 1411Requests a screen refresh. At the next opportunity, rxvt-unicode will
1076line, starting at column C<$start_col> (default C<0>), which is useful 1426line, starting at column C<$start_col> (default C<0>), which is useful
1077to replace only parts of a line. The font index in the rendition will 1427to replace only parts of a line. The font index in the rendition will
1078automatically be updated. 1428automatically be updated.
1079 1429
1080C<$text> is in a special encoding: tabs and wide characters that use more 1430C<$text> is in a special encoding: tabs and wide characters that use more
1081than one cell when displayed are padded with urxvt::NOCHAR characters 1431than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1082(C<chr 65535>). Characters with combining characters and other characters 1432characters. Characters with combining characters and other characters that
1083that do not fit into the normal tetx encoding will be replaced with 1433do not fit into the normal tetx encoding will be replaced with characters
1084characters in the private use area. 1434in the private use area.
1085 1435
1086You have to obey this encoding when changing text. The advantage is 1436You have to obey this encoding when changing text. The advantage is
1087that C<substr> and similar functions work on screen cells and not on 1437that C<substr> and similar functions work on screen cells and not on
1088characters. 1438characters.
1089 1439
1140Return the row number of the first/last row of the line, respectively. 1490Return the row number of the first/last row of the line, respectively.
1141 1491
1142=item $offset = $line->offset_of ($row, $col) 1492=item $offset = $line->offset_of ($row, $col)
1143 1493
1144Returns the character offset of the given row|col pair within the logical 1494Returns the character offset of the given row|col pair within the logical
1145line. 1495line. Works for rows outside the line, too, and returns corresponding
1496offsets outside the string.
1146 1497
1147=item ($row, $col) = $line->coord_of ($offset) 1498=item ($row, $col) = $line->coord_of ($offset)
1148 1499
1149Translates a string offset into terminal coordinates again. 1500Translates a string offset into terminal coordinates again.
1150 1501
1263 1614
1264Calls XUngrab for the most recent grab. Is called automatically on 1615Calls XUngrab for the most recent grab. Is called automatically on
1265evaluation errors, as it is better to lose the grab in the error case as 1616evaluation errors, as it is better to lose the grab in the error case as
1266the session. 1617the session.
1267 1618
1619=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1620
1621=item $atom_name = $term->XGetAtomName ($atom)
1622
1623=item @atoms = $term->XListProperties ($window)
1624
1625=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1626
1627=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1628
1629=item $term->XDeleteProperty ($window, $property)
1630
1631=item $window = $term->DefaultRootWindow
1632
1633=item $term->XReparentWindow ($window, $parent, [$x, $y])
1634
1635=item $term->XMapWindow ($window)
1636
1637=item $term->XUnmapWindow ($window)
1638
1639=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1640
1641=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1642
1643=item $term->XChangeInput ($window, $add_events[, $del_events])
1644
1645Various X or X-related functions. The C<$term> object only serves as
1646the source of the display, otherwise those functions map more-or-less
1647directory onto the X functions of the same name.
1648
1268=back 1649=back
1269 1650
1270=cut 1651=cut
1271 1652
1272package urxvt::popup; 1653package urxvt::popup;
1286 1667
1287 $item->{render} ||= sub { $_[0]{text} }; 1668 $item->{render} ||= sub { $_[0]{text} };
1288 1669
1289 push @{ $self->{item} }, $item; 1670 push @{ $self->{item} }, $item;
1290} 1671}
1672
1673=item $popup->add_title ($title)
1674
1675Adds a non-clickable title to the popup.
1676
1677=cut
1678
1679sub add_title {
1680 my ($self, $title) = @_;
1681
1682 $self->add_item ({
1683 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1684 text => $title,
1685 activate => sub { },
1686 });
1687}
1688
1689=item $popup->add_separator ([$sepchr])
1690
1691Creates a separator, optionally using the character given as C<$sepchr>.
1692
1693=cut
1291 1694
1292sub add_separator { 1695sub add_separator {
1293 my ($self, $sep) = @_; 1696 my ($self, $sep) = @_;
1294 1697
1295 $sep ||= "="; 1698 $sep ||= "=";
1300 render => sub { $sep x $self->{term}->ncol }, 1703 render => sub { $sep x $self->{term}->ncol },
1301 activate => sub { }, 1704 activate => sub { },
1302 }); 1705 });
1303} 1706}
1304 1707
1305sub add_title { 1708=item $popup->add_button ($text, $cb)
1306 my ($self, $title) = @_;
1307 1709
1308 $self->add_item ({ 1710Adds a clickable button to the popup. C<$cb> is called whenever it is
1309 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" }, 1711selected.
1310 text => $title, 1712
1311 activate => sub { }, 1713=cut
1312 });
1313}
1314 1714
1315sub add_button { 1715sub add_button {
1316 my ($self, $text, $cb) = @_; 1716 my ($self, $text, $cb) = @_;
1317 1717
1318 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1718 $self->add_item ({ type => "button", text => $text, activate => $cb});
1319} 1719}
1720
1721=item $popup->add_toggle ($text, $cb, $initial_value)
1722
1723Adds a toggle/checkbox item to the popup. Teh callback gets called
1724whenever it gets toggled, with a boolean indicating its value as its first
1725argument.
1726
1727=cut
1320 1728
1321sub add_toggle { 1729sub add_toggle {
1322 my ($self, $text, $cb, $value) = @_; 1730 my ($self, $text, $cb, $value) = @_;
1323 1731
1324 my $item; $item = { 1732 my $item; $item = {
1325 type => "button", 1733 type => "button",
1326 text => " $text", 1734 text => " $text",
1327 value => $value, 1735 value => $value,
1328 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1736 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1329 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1737 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1330 }; 1738 };
1331 1739
1332 $self->add_item ($item); 1740 $self->add_item ($item);
1333} 1741}
1742
1743=item $popup->show
1744
1745Displays the popup (which is initially hidden).
1746
1747=cut
1334 1748
1335sub show { 1749sub show {
1336 my ($self) = @_; 1750 my ($self) = @_;
1337 1751
1338 local $urxvt::popup::self = $self; 1752 local $urxvt::popup::self = $self;
1339 1753
1754 my $env = $self->{term}->env;
1755 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1756 delete $env->{LC_ALL};
1340 local $ENV{LC_ALL} = $self->{term}->locale; 1757 $env->{LC_CTYPE} = $self->{term}->locale;
1341 1758
1342 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1759 urxvt::term->new ($env, "popup",
1760 "--perl-lib" => "", "--perl-ext-common" => "",
1761 "-pty-fd" => -1, "-sl" => 0,
1762 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1343 "--transient-for" => $self->{term}->parent, 1763 "--transient-for" => $self->{term}->parent,
1344 "-display" => $self->{term}->display_id, 1764 "-display" => $self->{term}->display_id,
1345 "-pe" => "urxvt-popup") 1765 "-pe" => "urxvt-popup")
1346 or die "unable to create popup window\n"; 1766 or die "unable to create popup window\n";
1347} 1767}
1348 1768
1349sub DESTROY { 1769sub DESTROY {
1350 my ($self) = @_; 1770 my ($self) = @_;
1351 1771
1352 delete $self->{term}{_destroy}{$self}; 1772 delete $self->{term}{_destroy}{$self};
1353 $self->{term}->ungrab; 1773 $self->{term}->ungrab;
1354} 1774}
1775
1776=back
1777
1778=cut
1779
1780package urxvt::watcher;
1781
1782@urxvt::timer::ISA = __PACKAGE__;
1783@urxvt::iow::ISA = __PACKAGE__;
1784@urxvt::pw::ISA = __PACKAGE__;
1785@urxvt::iw::ISA = __PACKAGE__;
1355 1786
1356=head2 The C<urxvt::timer> Class 1787=head2 The C<urxvt::timer> Class
1357 1788
1358This class implements timer watchers/events. Time is represented as a 1789This class implements timer watchers/events. Time is represented as a
1359fractional number of seconds since the epoch. Example: 1790fractional number of seconds since the epoch. Example:
1397Start the timer. 1828Start the timer.
1398 1829
1399=item $timer = $timer->start ($tstamp) 1830=item $timer = $timer->start ($tstamp)
1400 1831
1401Set the event trigger time to C<$tstamp> and start the timer. 1832Set the event trigger time to C<$tstamp> and start the timer.
1833
1834=item $timer = $timer->after ($delay)
1835
1836Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1402 1837
1403=item $timer = $timer->stop 1838=item $timer = $timer->stop
1404 1839
1405Stop the timer. 1840Stop the timer.
1406 1841
1453 1888
1454Stop watching for events on the given filehandle. 1889Stop watching for events on the given filehandle.
1455 1890
1456=back 1891=back
1457 1892
1893=head2 The C<urxvt::iw> Class
1894
1895This class implements idle watchers, that get called automatically when
1896the process is idle. They should return as fast as possible, after doing
1897some useful work.
1898
1899=over 4
1900
1901=item $iw = new urxvt::iw
1902
1903Create a new idle watcher object in stopped state.
1904
1905=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1906
1907Set the callback to be called when the watcher triggers.
1908
1909=item $timer = $timer->start
1910
1911Start the watcher.
1912
1913=item $timer = $timer->stop
1914
1915Stop the watcher.
1916
1917=back
1918
1919=head2 The C<urxvt::pw> Class
1920
1921This class implements process watchers. They create an event whenever a
1922process exits, after which they stop automatically.
1923
1924 my $pid = fork;
1925 ...
1926 $term->{pw} = urxvt::pw
1927 ->new
1928 ->start ($pid)
1929 ->cb (sub {
1930 my ($pw, $exit_status) = @_;
1931 ...
1932 });
1933
1934=over 4
1935
1936=item $pw = new urxvt::pw
1937
1938Create a new process watcher in stopped state.
1939
1940=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1941
1942Set the callback to be called when the timer triggers.
1943
1944=item $pw = $timer->start ($pid)
1945
1946Tells the wqtcher to start watching for process C<$pid>.
1947
1948=item $pw = $pw->stop
1949
1950Stop the watcher.
1951
1952=back
1953
1458=head1 ENVIRONMENT 1954=head1 ENVIRONMENT
1459 1955
1460=head2 URXVT_PERL_VERBOSITY 1956=head2 URXVT_PERL_VERBOSITY
1461 1957
1462This variable controls the verbosity level of the perl extension. Higher 1958This variable controls the verbosity level of the perl extension. Higher
1466 1962
1467=item == 0 - fatal messages 1963=item == 0 - fatal messages
1468 1964
1469=item >= 3 - script loading and management 1965=item >= 3 - script loading and management
1470 1966
1471=item >=10 - all events received 1967=item >=10 - all called hooks
1968
1969=item >=11 - hook reutrn values
1472 1970
1473=back 1971=back
1474 1972
1475=head1 AUTHOR 1973=head1 AUTHOR
1476 1974

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