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Revision 1.73 by root, Tue Jan 10 04:23:39 2006 UTC vs.
Revision 1.124 by root, Sun Jan 22 11:57:06 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 mouse is on the same (multi-row-) line as the text cursor.
145
146=item - the primary screen is currently being displayed.
147
148=item - the text cursor is visible.
149
150=back
151
152The normal selection mechanism isn't disabled, so quick successive clicks
153might interfere with selection creation in harmless ways.
154
155=item selection-autotransform
156
157This selection allows you to do automatic transforms on a selection
158whenever a selection is made.
159
160It works by specifying perl snippets (most useful is a single C<s///>
161operator) that modify C<$_> as resources:
162
163 URxvt.selection-autotransform.0: transform
164 URxvt.selection-autotransform.1: transform
165 ...
166
167For example, the following will transform selections of the form
168C<filename:number>, often seen in compiler messages, into C<vi +$filename
169$word>:
170
171 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
172
173And this example matches the same,but replaces it with vi-commands you can
174paste directly into your (vi :) editor:
175
176 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
177
178Of course, this can be modified to suit your needs and your editor :)
179
180To expand the example above to typical perl error messages ("XXX at
181FILENAME line YYY."), you need a slightly more elaborate solution:
182
183 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
184 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
185
186The first line tells the selection code to treat the unchanging part of
187every error message as a selection pattern, and the second line transforms
188the message into vi commands to load the file.
189
190=item tabbed
191
192This transforms the terminal into a tabbar with additional terminals, that
193is, it implements what is commonly refered to as "tabbed terminal". The topmost line
194displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
195button per tab.
196
197Clicking a button will activate that tab. Pressing B<Shift-Left> and
198B<Shift-Right> will switch to the tab left or right of the current one,
199while B<Shift-Down> creates a new tab.
82 200
83=item mark-urls 201=item mark-urls
84 202
85Uses per-line display filtering (C<on_line_update>) to underline urls. 203Uses per-line display filtering (C<on_line_update>) to underline urls and
204make them clickable. When middle-clicked, the program specified in the
205resource C<urlLauncher> (default C<x-www-browser>) will be started with
206the URL as first argument.
207
208=item automove-background
209
210This is basically a one-line extension that dynamically changes the background pixmap offset
211to the window position, in effect creating the same effect as pseudo transparency with
212a custom pixmap. No scaling is supported in this mode. Exmaple:
213
214 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
86 215
87=item block-graphics-to-ascii 216=item block-graphics-to-ascii
88 217
89A not very useful example of filtering all text output to the terminal, 218A not very useful example of filtering all text output to the terminal,
90by replacing all line-drawing characters (U+2500 .. U+259F) by a 219by replacing all line-drawing characters (U+2500 .. U+259F) by a
91similar-looking ascii character. 220similar-looking ascii character.
92 221
222=item digital-clock
223
224Displays a digital clock using the built-in overlay.
225
93=item example-refresh-hooks 226=item example-refresh-hooks
94 227
95Displays a very simple digital clock in the upper right corner of the 228Displays a very simple digital clock in the upper right corner of the
96window. Illustrates overwriting the refresh callbacks to create your own 229window. Illustrates overwriting the refresh callbacks to create your own
97overlays or changes. 230overlays or changes.
98 231
232=item selection-pastebin
233
234This is a little rarely useful extension that Uploads the selection as
235textfile to a remote site (or does other things). (The implementation is
236not currently secure for use in a multiuser environment as it writes to
237F</tmp> directly.).
238
239It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
240i.e.
241
242 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
243
244Pressing this combination runs a command with C<%> replaced by the name of
245the textfile. This command can be set via a resource:
246
247 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
248
249And the default is likely not useful to anybody but the few people around
250here :)
251
252The name of the textfile is the hex encoded md5 sum of the selection, so
253the same content should lead to the same filename.
254
255After a successful upload the selection will be replaced by the text given
256in the C<selection-pastebin-url> resource (again, the % is the placeholder
257for the filename):
258
259 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
260
99=back 261=back
262
263=head1 API DOCUMENTATION
100 264
101=head2 General API Considerations 265=head2 General API Considerations
102 266
103All objects (such as terminals, time watchers etc.) are typical 267All objects (such as terminals, time watchers etc.) are typical
104reference-to-hash objects. The hash can be used to store anything you 268reference-to-hash objects. The hash can be used to store anything you
117=over 4 281=over 4
118 282
119=item $text 283=item $text
120 284
121Rxvt-unicodes special way of encoding text, where one "unicode" character 285Rxvt-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. 286always represents one screen cell. See L<ROW_t> for a discussion of this format.
123 287
124=item $string 288=item $string
125 289
126A perl text string, with an emphasis on I<text>. It can store all unicode 290A 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 291characters and is to be distinguished with text encoded in a specific
173called whenever the relevant event happens. 337called whenever the relevant event happens.
174 338
175The first argument passed to them is an extension oject as described in 339The first argument passed to them is an extension oject as described in
176the in the C<Extension Objects> section. 340the in the C<Extension Objects> section.
177 341
178B<All> of these hooks must return a boolean value. If it is true, then the 342B<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 343hooks 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. 344relevant action might not be carried out by the C++ code.
181 345
182I<< When in doubt, return a false value (preferably C<()>). >> 346I<< When in doubt, return a false value (preferably C<()>). >>
183 347
184=over 4 348=over 4
185 349
186=item on_init $term 350=item on_init $term
187 351
188Called after a new terminal object has been initialized, but before 352Called after a new terminal object has been initialized, but before
189windows are created or the command gets run. Most methods are unsafe to 353windows are created or the command gets run. Most methods are unsafe to
190call or deliver senseless data, as terminal size and other characteristics 354call or deliver senseless data, as terminal size and other characteristics
191have not yet been determined. You can safely query and change resources, 355have not yet been determined. You can safely query and change resources
192though. 356and options, though. For many purposes the C<on_start> hook is a better
357place.
358
359=item on_start $term
360
361Called at the very end of initialisation of a new terminal, just before
362trying to map (display) the toplevel and returning to the mainloop.
363
364=item on_destroy $term
365
366Called whenever something tries to destroy terminal, before doing anything
367yet. If this hook returns true, then destruction is skipped, but this is
368rarely a good idea.
193 369
194=item on_reset $term 370=item on_reset $term
195 371
196Called after the screen is "reset" for any reason, such as resizing or 372Called 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 373control sequences. Here is where you can react on changes to size-related
198variables. 374variables.
199 375
200=item on_start $term 376=item on_child_start $term, $pid
201 377
202Called at the very end of initialisation of a new terminal, just before 378Called just after the child process has been C<fork>ed.
203returning to the mainloop. 379
380=item on_child_exit $term, $status
381
382Called just after the child process has exited. C<$status> is the status
383from C<waitpid>.
204 384
205=item on_sel_make $term, $eventtime 385=item on_sel_make $term, $eventtime
206 386
207Called whenever a selection has been made by the user, but before the 387Called 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 388selection text is copied, so changes to the beginning, end or type of the
222=item on_sel_extend $term 402=item on_sel_extend $term
223 403
224Called whenever the user tries to extend the selection (e.g. with a double 404Called whenever the user tries to extend the selection (e.g. with a double
225click) and is either supposed to return false (normal operation), or 405click) and is either supposed to return false (normal operation), or
226should extend the selection itelf and return true to suppress the built-in 406should extend the selection itelf and return true to suppress the built-in
227processing. 407processing. This can happen multiple times, as long as the callback
408returns true, it will be called on every further click by the user and is
409supposed to enlarge the selection more and more, if possible.
228 410
229See the F<selection> example extension. 411See the F<selection> example extension.
230 412
231=item on_view_change $term, $offset 413=item on_view_change $term, $offset
232 414
299 481
300Called whenever the user presses a key combination that has a 482Called whenever the user presses a key combination that has a
301C<perl:string> action bound to it (see description of the B<keysym> 483C<perl:string> action bound to it (see description of the B<keysym>
302resource in the @@RXVT_NAME@@(1) manpage). 484resource in the @@RXVT_NAME@@(1) manpage).
303 485
486=item on_x_event $term, $event
487
488Called on every X event received on the vt window (and possibly other
489windows). Should only be used as a last resort. Most event structure
490members are not passed.
491
304=item on_focus_in $term 492=item on_focus_in $term
305 493
306Called whenever the window gets the keyboard focus, before rxvt-unicode 494Called whenever the window gets the keyboard focus, before rxvt-unicode
307does focus in processing. 495does focus in processing.
308 496
309=item on_focus_out $term 497=item on_focus_out $term
310 498
311Called wheneever the window loses keyboard focus, before rxvt-unicode does 499Called wheneever the window loses keyboard focus, before rxvt-unicode does
312focus out processing. 500focus out processing.
313 501
502=item on_configure_notify $term, $event
503
504=item on_property_notify $term, $event
505
314=item on_key_press $term, $event, $keysym, $octets 506=item on_key_press $term, $event, $keysym, $octets
315 507
316=item on_key_release $term, $event, $keysym 508=item on_key_release $term, $event, $keysym
317 509
318=item on_button_press $term, $event 510=item on_button_press $term, $event
327 519
328Called whenever the corresponding X event is received for the terminal If 520Called whenever the corresponding X event is received for the terminal If
329the hook returns true, then the even will be ignored by rxvt-unicode. 521the hook returns true, then the even will be ignored by rxvt-unicode.
330 522
331The event is a hash with most values as named by Xlib (see the XEvent 523The 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 524manpage), with the additional members C<row> and C<col>, which are the
333and column under the mouse cursor. 525(real, not screen-based) row and column under the mouse cursor.
334 526
335C<on_key_press> additionally receives the string rxvt-unicode would 527C<on_key_press> additionally receives the string rxvt-unicode would
336output, if any, in locale-specific encoding. 528output, if any, in locale-specific encoding.
337 529
338subwindow. 530subwindow.
339 531
340=back 532=item on_client_message $term, $event
341 533
342=head2 Variables in the C<urxvt> Package 534=item on_wm_protocols $term, $event
343 535
344=over 4 536=item on_wm_delete_window $term, $event
345 537
346=item $urxvt::TERM 538Called when various types of ClientMessage events are received (all with
347 539format=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.
449 540
450=back 541=back
451 542
452=cut 543=cut
453 544
459use Scalar::Util (); 550use Scalar::Util ();
460use List::Util (); 551use List::Util ();
461 552
462our $VERSION = 1; 553our $VERSION = 1;
463our $TERM; 554our $TERM;
555our @TERM_INIT;
556our @TERM_EXT;
464our @HOOKNAME; 557our @HOOKNAME;
465our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 558our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
466our %OPTION; 559our %OPTION;
467 560
468our $LIBDIR; 561our $LIBDIR;
469our $RESNAME; 562our $RESNAME;
470our $RESCLASS; 563our $RESCLASS;
471our $RXVTNAME; 564our $RXVTNAME;
472 565
566our $NOCHAR = chr 0xffff;
567
568=head2 Variables in the C<urxvt> Package
569
570=over 4
571
572=item $urxvt::LIBDIR
573
574The rxvt-unicode library directory, where, among other things, the perl
575modules and scripts are stored.
576
577=item $urxvt::RESCLASS, $urxvt::RESCLASS
578
579The resource class and name rxvt-unicode uses to look up X resources.
580
581=item $urxvt::RXVTNAME
582
583The basename of the installed binaries, usually C<urxvt>.
584
585=item $urxvt::TERM
586
587The current terminal. This variable stores the current C<urxvt::term>
588object, whenever a callback/hook is executing.
589
590=item @urxvt::TERM_INIT
591
592All coderefs in this array will be called as methods of the next newly
593created C<urxvt::term> object (during the C<on_init> phase). The array
594gets cleared before the codereferences that were in it are being executed,
595so coderefs can push themselves onto it again if they so desire.
596
597This complements to the perl-eval commandline option, but gets executed
598first.
599
600=item @urxvt::TERM_EXT
601
602Works similar to C<@TERM_INIT>, but contains perl package/class names, which
603get registered as normal extensions after calling the hooks in C<@TERM_INIT>
604but before other extensions. Gets cleared just like C<@TERM_INIT>.
605
606=back
607
608=head2 Functions in the C<urxvt> Package
609
610=over 4
611
612=item urxvt::fatal $errormessage
613
614Fatally aborts execution with the given error message. Avoid at all
615costs! The only time this is acceptable is when the terminal process
616starts up.
617
618=item urxvt::warn $string
619
620Calls C<rxvt_warn> with the given string which should not include a
621newline. The module also overwrites the C<warn> builtin with a function
622that calls this function.
623
624Using this function has the advantage that its output ends up in the
625correct place, e.g. on stderr of the connecting urxvtc client.
626
627Messages have a size limit of 1023 bytes currently.
628
629=item $time = urxvt::NOW
630
631Returns the "current time" (as per the event loop).
632
633=item urxvt::CurrentTime
634
635=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
636Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
637Button4Mask, Button5Mask, AnyModifier
638
639=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
640ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
641PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
642Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
643KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
644ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
645FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
646
647=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
648EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
649GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
650UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
651ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
652CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
653SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
654
655Various constants for use in X calls and event processing.
656
657=back
658
659=head2 RENDITION
660
661Rendition bitsets contain information about colour, font, font styles and
662similar information for each screen cell.
663
664The following "macros" deal with changes in rendition sets. You should
665never just create a bitset, you should always modify an existing one,
666as they contain important information required for correct operation of
667rxvt-unicode.
668
669=over 4
670
671=item $rend = urxvt::DEFAULT_RSTYLE
672
673Returns the default rendition, as used when the terminal is starting up or
674being reset. Useful as a base to start when creating renditions.
675
676=item $rend = urxvt::OVERLAY_RSTYLE
677
678Return the rendition mask used for overlays by default.
679
680=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
681
682Return the bit that enabled bold, italic, blink, reverse-video and
683underline, respectively. To enable such a style, just logically OR it into
684the bitset.
685
686=item $foreground = urxvt::GET_BASEFG $rend
687
688=item $background = urxvt::GET_BASEBG $rend
689
690Return the foreground/background colour index, respectively.
691
692=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
693
694=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
695
696Replace the foreground/background colour in the rendition mask with the
697specified one.
698
699=item $value = urxvt::GET_CUSTOM $rend
700
701Return the "custom" value: Every rendition has 5 bits for use by
702extensions. They can be set and changed as you like and are initially
703zero.
704
705=item $rend = urxvt::SET_CUSTOM $rend, $new_value
706
707Change the custom value.
708
709=back
710
711=cut
712
473BEGIN { 713BEGIN {
474 urxvt->bootstrap;
475
476 # overwrite perl's warn 714 # overwrite perl's warn
477 *CORE::GLOBAL::warn = sub { 715 *CORE::GLOBAL::warn = sub {
478 my $msg = join "", @_; 716 my $msg = join "", @_;
479 $msg .= "\n" 717 $msg .= "\n"
480 unless $msg =~ /\n$/; 718 unless $msg =~ /\n$/;
481 urxvt::warn ($msg); 719 urxvt::warn ($msg);
482 }; 720 };
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} 721}
489 722
490my @hook_count; 723no warnings 'utf8';
724
491my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 725my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
492 726
493sub verbose { 727sub verbose {
494 my ($level, $msg) = @_; 728 my ($level, $msg) = @_;
495 warn "$msg\n" if $level <= $verbosity; 729 warn "$msg\n" if $level <= $verbosity;
496} 730}
497 731
498my $extension_pkg = "extension0000";
499my %extension_pkg; 732my %extension_pkg;
500 733
501# load a single script into its own package, once only 734# load a single script into its own package, once only
502sub extension_package($) { 735sub extension_package($) {
503 my ($path) = @_; 736 my ($path) = @_;
504 737
505 $extension_pkg{$path} ||= do { 738 $extension_pkg{$path} ||= do {
506 my $pkg = "urxvt::" . ($extension_pkg++); 739 $path =~ /([^\/\\]+)$/;
740 my $pkg = $1;
741 $pkg =~ s/[^[:word:]]/_/g;
742 $pkg = "urxvt::ext::$pkg";
507 743
508 verbose 3, "loading extension '$path' into package '$pkg'"; 744 verbose 3, "loading extension '$path' into package '$pkg'";
509 745
510 open my $fh, "<:raw", $path 746 open my $fh, "<:raw", $path
511 or die "$path: $!"; 747 or die "$path: $!";
512 748
513 my $source = untaint 749 my $source =
514 "package $pkg; use strict; use utf8;\n" 750 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
515 . "use base urxvt::term::extension::;\n"
516 . "#line 1 \"$path\"\n{\n" 751 . "#line 1 \"$path\"\n{\n"
517 . (do { local $/; <$fh> }) 752 . (do { local $/; <$fh> })
518 . "\n};\n1"; 753 . "\n};\n1";
519 754
520 eval $source 755 eval $source
534 if ($htype == 0) { # INIT 769 if ($htype == 0) { # INIT
535 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 770 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
536 771
537 my %ext_arg; 772 my %ext_arg;
538 773
774 {
775 my @init = @TERM_INIT;
776 @TERM_INIT = ();
777 $_->($TERM) for @init;
778 my @pkg = @TERM_EXT;
779 @TERM_EXT = ();
780 $TERM->register_package ($_) for @pkg;
781 }
782
539 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 783 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
540 if ($_ eq "default") { 784 if ($_ eq "default") {
541 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 785 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
542 } elsif (/^-(.*)$/) { 786 } elsif (/^-(.*)$/) {
543 delete $ext_arg{$1}; 787 delete $ext_arg{$1};
544 } elsif (/^([^<]+)<(.*)>$/) { 788 } elsif (/^([^<]+)<(.*)>$/) {
545 push @{ $ext_arg{$1} }, $2; 789 push @{ $ext_arg{$1} }, $2;
546 } else { 790 } else {
569 if $verbosity >= 10; 813 if $verbosity >= 10;
570 814
571 keys %$cb; 815 keys %$cb;
572 816
573 while (my ($pkg, $cb) = each %$cb) { 817 while (my ($pkg, $cb) = each %$cb) {
574 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 818 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
575 and last; 819 $retval ||= $retval_;
576 820
577 if ($@) { 821 if ($@) {
578 $TERM->ungrab; # better to lose the grab than the session 822 $TERM->ungrab; # better to lose the grab than the session
579 warn $@; 823 warn $@;
580 } 824 }
581 } 825 }
826
827 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
828 if $verbosity >= 11;
582 } 829 }
583 830
584 if ($htype == 1) { # DESTROY 831 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 $htype, 0;
589 }
590 }
591
592 # clear package objects 832 # clear package objects
593 %$_ = () for values %{ $TERM->{_pkg} }; 833 %$_ = () for values %{ $TERM->{_pkg} };
594 834
595 # clear package 835 # clear package
596 %$TERM = (); 836 %$TERM = ();
610 while (my ($name, $cb) = each %hook) { 850 while (my ($name, $cb) = each %hook) {
611 my $htype = $HOOKTYPE{uc $name}; 851 my $htype = $HOOKTYPE{uc $name};
612 defined $htype 852 defined $htype
613 or Carp::croak "unsupported hook type '$name'"; 853 or Carp::croak "unsupported hook type '$name'";
614 854
855 $self->set_should_invoke ($htype, +1)
615 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 856 unless exists $self->{term}{_hook}[$htype]{$pkg};
616 $hook_count[$htype]++
617 or urxvt::set_should_invoke $htype, 1;
618 }
619 857
620 $self->{term}{_hook}[$htype]{$pkg} = $cb; 858 $self->{term}{_hook}[$htype]{$pkg} = $cb;
621 } 859 }
622} 860}
623 861
628 for my $name (@hook) { 866 for my $name (@hook) {
629 my $htype = $HOOKTYPE{uc $name}; 867 my $htype = $HOOKTYPE{uc $name};
630 defined $htype 868 defined $htype
631 or Carp::croak "unsupported hook type '$name'"; 869 or Carp::croak "unsupported hook type '$name'";
632 870
871 $self->set_should_invoke ($htype, -1)
633 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 872 if delete $self->{term}{_hook}[$htype]{$pkg};
634 --$hook_count[$htype]
635 or urxvt::set_should_invoke $htype, 0;
636 }
637 } 873 }
638} 874}
639 875
640our $AUTOLOAD; 876our $AUTOLOAD;
641 877
672 908
673=head2 The C<urxvt::anyevent> Class 909=head2 The C<urxvt::anyevent> Class
674 910
675The sole purpose of this class is to deliver an interface to the 911The sole purpose of this class is to deliver an interface to the
676C<AnyEvent> module - any module using it will work inside urxvt without 912C<AnyEvent> module - any module using it will work inside urxvt without
677further work. The only exception is that you cannot wait on condition 913further programming. The only exception is that you cannot wait on
678variables, but non-blocking condvar use is ok. What this means is that you 914condition variables, but non-blocking condvar use is ok. What this means
679cannot use blocking APIs, but the non-blocking variant should work. 915is that you cannot use blocking APIs, but the non-blocking variant should
916work.
680 917
681=cut 918=cut
682 919
683our $VERSION = 1; 920our $VERSION = 1;
684 921
746# find on_xxx subs in the package and register them 983# find on_xxx subs in the package and register them
747# as hooks 984# as hooks
748sub register_package { 985sub register_package {
749 my ($self, $pkg, $argv) = @_; 986 my ($self, $pkg, $argv) = @_;
750 987
988 no strict 'refs';
989
990 urxvt::verbose 6, "register package $pkg to $self";
991
992 @{"$pkg\::ISA"} = urxvt::term::extension::;
993
751 my $proxy = bless { 994 my $proxy = bless {
752 _pkg => $pkg, 995 _pkg => $pkg,
753 argv => $argv, 996 argv => $argv,
754 }, $pkg; 997 }, $pkg;
755 Scalar::Util::weaken ($proxy->{term} = $self); 998 Scalar::Util::weaken ($proxy->{term} = $self);
761 $proxy->enable ($name => $ref); 1004 $proxy->enable ($name => $ref);
762 } 1005 }
763 } 1006 }
764} 1007}
765 1008
1009=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1010
1011Creates a new terminal, very similar as if you had started it with system
1012C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1013hash which defines the environment of the new terminal.
1014
1015Croaks (and probably outputs an error message) if the new instance
1016couldn't be created. Returns C<undef> if the new instance didn't
1017initialise perl, and the terminal object otherwise. The C<init> and
1018C<start> hooks will be called during this call.
1019
1020=cut
1021
1022sub new {
1023 my ($class, $env, @args) = @_;
1024
1025 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
1026}
1027
766=item $term->destroy 1028=item $term->destroy
767 1029
768Destroy the terminal object (close the window, free resources etc.). 1030Destroy the terminal object (close the window, free resources
1031etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1032watchers (timers, io watchers) are still active.
1033
1034=item $term->exec_async ($cmd[, @args])
1035
1036Works like the combination of the C<fork>/C<exec> builtins, which executes
1037("starts") programs in the background. This function takes care of setting
1038the user environment before exec'ing the command (e.g. C<PATH>) and should
1039be preferred over explicit calls to C<exec> or C<system>.
1040
1041Returns the pid of the subprocess or C<undef> on error.
1042
1043=cut
1044
1045sub exec_async {
1046 my $self = shift;
1047
1048 my $pid = fork;
1049
1050 return $pid
1051 if !defined $pid or $pid;
1052
1053 %ENV = %{ $self->env };
1054
1055 exec @_;
1056 urxvt::_exit 255;
1057}
769 1058
770=item $isset = $term->option ($optval[, $set]) 1059=item $isset = $term->option ($optval[, $set])
771 1060
772Returns true if the option specified by C<$optval> is enabled, and 1061Returns true if the option specified by C<$optval> is enabled, and
773optionally change it. All option values are stored by name in the hash 1062optionally 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 1065Here is a a likely non-exhaustive list of option names, please see the
777source file F</src/optinc.h> to see the actual list: 1066source file F</src/optinc.h> to see the actual list:
778 1067
779 borderLess console cursorBlink cursorUnderline hold iconic insecure 1068 borderLess console cursorBlink cursorUnderline hold iconic insecure
780 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1069 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
781 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1070 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
782 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1071 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
783 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1072 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
784 tripleclickwords utmpInhibit visualBell 1073 transparent tripleclickwords utmpInhibit visualBell
785 1074
786=item $value = $term->resource ($name[, $newval]) 1075=item $value = $term->resource ($name[, $newval])
787 1076
788Returns the current resource value associated with a given name and 1077Returns the current resource value associated with a given name and
789optionally sets a new value. Setting values is most useful in the C<init> 1078optionally sets a new value. Setting values is most useful in the C<init>
806 1095
807 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1096 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
808 borderLess color cursorBlink cursorUnderline cutchars delete_key 1097 borderLess color cursorBlink cursorUnderline cutchars delete_key
809 display_name embed ext_bwidth fade font geometry hold iconName 1098 display_name embed ext_bwidth fade font geometry hold iconName
810 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1099 imFont imLocale inputMethod insecure int_bwidth intensityStyles
811 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1100 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
812 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1101 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
813 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1102 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
814 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1103 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
815 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1104 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
816 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1105 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
817 shade term_name title transparent transparent_all tripleclickwords 1106 secondaryScreen secondaryScroll selectstyle shade term_name title
818 utmpInhibit visualBell 1107 transient_for transparent transparent_all tripleclickwords utmpInhibit
1108 visualBell
819 1109
820=cut 1110=cut
821 1111
822sub resource($$;$) { 1112sub resource($$;$) {
823 my ($self, $name) = (shift, shift); 1113 my ($self, $name) = (shift, shift);
824 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1114 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
825 &urxvt::term::_resource 1115 &urxvt::term::_resource
826} 1116}
827 1117
1118=item $value = $term->x_resource ($pattern)
1119
1120Returns the X-Resource for the given pattern, excluding the program or
1121class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1122same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1123resource with that pattern exists.
1124
1125This method should only be called during the C<on_start> hook, as there is
1126only one resource database per display, and later invocations might return
1127the wrong resources.
1128
828=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1129=item $success = $term->parse_keysym ($keysym_spec, $command_string)
829 1130
830Adds a keymap translation exactly as specified via a resource. See the 1131Adds a keymap translation exactly as specified via a resource. See the
831C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1132C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
832 1133
847=item ($row, $col) = $term->selection_end ([$row, $col]) 1148=item ($row, $col) = $term->selection_end ([$row, $col])
848 1149
849Return the current values of the selection mark, begin or end positions, 1150Return the current values of the selection mark, begin or end positions,
850and optionally set them to new values. 1151and optionally set them to new values.
851 1152
1153=item $term->selection_make ($eventtime[, $rectangular])
1154
1155Tries to make a selection as set by C<selection_beg> and
1156C<selection_end>. If C<$rectangular> is true (default: false), a
1157rectangular selection will be made. This is the prefered function to make
1158a selection.
1159
852=item $success = $term->selection_grab ($eventtime) 1160=item $success = $term->selection_grab ($eventtime)
853 1161
854Try to request the primary selection from the server (for example, as set 1162Try to request the primary selection text from the server (for example, as
855by the next method). 1163set by the next method). No visual feedback will be given. This function
1164is mostly useful from within C<on_sel_grab> hooks.
856 1165
857=item $oldtext = $term->selection ([$newtext]) 1166=item $oldtext = $term->selection ([$newtext])
858 1167
859Return the current selection text and optionally replace it by C<$newtext>. 1168Return the current selection text and optionally replace it by C<$newtext>.
860 1169
953Convert the given locale-encoded octets into a perl string. 1262Convert the given locale-encoded octets into a perl string.
954 1263
955=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) 1264=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
956 1265
957XORs the rendition values in the given span with the provided value 1266XORs the rendition values in the given span with the provided value
958(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar 1267(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
959to the selection. 1268refresh hooks to provide effects similar to the selection.
960 1269
961=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) 1270=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
962 1271
963Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1272Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
964whitespace will additionally be xored with the C<$rstyle2>, which defaults 1273whitespace will additionally be xored with the C<$rstyle2>, which defaults
965to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines 1274to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
966it instead. 1275it instead. Both styles I<MUST NOT> contain font styles.
967 1276
968=item $term->scr_bell 1277=item $term->scr_bell
969 1278
970Ring the bell! 1279Ring the bell!
971 1280
978 1287
979Normally its not a good idea to use this function, as programs might be 1288Normally 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 1289confused by changes in cursor position or scrolling. Its useful inside a
981C<on_add_lines> hook, though. 1290C<on_add_lines> hook, though.
982 1291
1292=item $term->scr_change_screen ($screen)
1293
1294Switch to given screen - 0 primary, 1 secondary.
1295
983=item $term->cmd_parse ($octets) 1296=item $term->cmd_parse ($octets)
984 1297
985Similar to C<scr_add_lines>, but the argument must be in the 1298Similar to C<scr_add_lines>, but the argument must be in the
986locale-specific encoding of the terminal and can contain command sequences 1299locale-specific encoding of the terminal and can contain command sequences
987(escape codes) that will be interpreted. 1300(escape codes) that will be interpreted.
1005 1318
1006=item $windowid = $term->vt 1319=item $windowid = $term->vt
1007 1320
1008Return the window id of the terminal window. 1321Return the window id of the terminal window.
1009 1322
1323=item $term->vt_emask_add ($x_event_mask)
1324
1325Adds the specified events to the vt event mask. Useful e.g. when you want
1326to receive pointer events all the times:
1327
1328 $term->vt_emask_add (urxvt::PointerMotionMask);
1329
1010=item $window_width = $term->width 1330=item $window_width = $term->width
1011 1331
1012=item $window_height = $term->height 1332=item $window_height = $term->height
1013 1333
1014=item $font_width = $term->fwidth 1334=item $font_width = $term->fwidth
1027 1347
1028=item $max_scrollback = $term->saveLines 1348=item $max_scrollback = $term->saveLines
1029 1349
1030=item $nrow_plus_saveLines = $term->total_rows 1350=item $nrow_plus_saveLines = $term->total_rows
1031 1351
1032=item $lines_in_scrollback = $term->nsaved 1352=item $topmost_scrollback_row = $term->top_row
1033 1353
1034Return various integers describing terminal characteristics. 1354Return various integers describing terminal characteristics.
1035 1355
1356=item $x_display = $term->display_id
1357
1358Return the DISPLAY used by rxvt-unicode.
1359
1036=item $lc_ctype = $term->locale 1360=item $lc_ctype = $term->locale
1037 1361
1038Returns the LC_CTYPE category string used by this rxvt-unicode. 1362Returns the LC_CTYPE category string used by this rxvt-unicode.
1039 1363
1040=item $x_display = $term->display_id 1364=item $env = $term->env
1041 1365
1042Return the DISPLAY used by rxvt-unicode. 1366Returns a copy of the environment in effect for the terminal as a hashref
1367similar to C<\%ENV>.
1368
1369=cut
1370
1371sub env {
1372 if (my $env = $_[0]->_env) {
1373 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1374 } else {
1375 +{ %ENV }
1376 }
1377}
1043 1378
1044=item $modifiermask = $term->ModLevel3Mask 1379=item $modifiermask = $term->ModLevel3Mask
1045 1380
1046=item $modifiermask = $term->ModMetaMask 1381=item $modifiermask = $term->ModMetaMask
1047 1382
1048=item $modifiermask = $term->ModNumLockMask 1383=item $modifiermask = $term->ModNumLockMask
1049 1384
1050Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1385Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1051AltGr), the meta key (often Alt) and the num lock key, if applicable. 1386AltGr), the meta key (often Alt) and the num lock key, if applicable.
1052 1387
1388=item $screen = $term->current_screen
1389
1390Returns the currently displayed screen (0 primary, 1 secondary).
1391
1392=item $cursor_is_hidden = $term->hidden_cursor
1393
1394Returns wether the cursor is currently hidden or not.
1395
1053=item $view_start = $term->view_start ([$newvalue]) 1396=item $view_start = $term->view_start ([$newvalue])
1054 1397
1055Returns the negative row number of the topmost line. Minimum value is 1398Returns the row number of the topmost displayed line. Maximum value is
1056C<0>, which displays the normal terminal contents. Larger values scroll 1399C<0>, which displays the normal terminal contents. Lower values scroll
1057this many lines into the scrollback buffer. 1400this many lines into the scrollback buffer.
1058 1401
1059=item $term->want_refresh 1402=item $term->want_refresh
1060 1403
1061Requests a screen refresh. At the next opportunity, rxvt-unicode will 1404Requests a screen refresh. At the next opportunity, rxvt-unicode will
1076line, starting at column C<$start_col> (default C<0>), which is useful 1419line, starting at column C<$start_col> (default C<0>), which is useful
1077to replace only parts of a line. The font index in the rendition will 1420to replace only parts of a line. The font index in the rendition will
1078automatically be updated. 1421automatically be updated.
1079 1422
1080C<$text> is in a special encoding: tabs and wide characters that use more 1423C<$text> is in a special encoding: tabs and wide characters that use more
1081than one cell when displayed are padded with urxvt::NOCHAR characters 1424than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1082(C<chr 65535>). Characters with combining characters and other characters 1425characters. Characters with combining characters and other characters that
1083that do not fit into the normal tetx encoding will be replaced with 1426do not fit into the normal tetx encoding will be replaced with characters
1084characters in the private use area. 1427in the private use area.
1085 1428
1086You have to obey this encoding when changing text. The advantage is 1429You have to obey this encoding when changing text. The advantage is
1087that C<substr> and similar functions work on screen cells and not on 1430that C<substr> and similar functions work on screen cells and not on
1088characters. 1431characters.
1089 1432
1140Return the row number of the first/last row of the line, respectively. 1483Return the row number of the first/last row of the line, respectively.
1141 1484
1142=item $offset = $line->offset_of ($row, $col) 1485=item $offset = $line->offset_of ($row, $col)
1143 1486
1144Returns the character offset of the given row|col pair within the logical 1487Returns the character offset of the given row|col pair within the logical
1145line. 1488line. Works for rows outside the line, too, and returns corresponding
1489offsets outside the string.
1146 1490
1147=item ($row, $col) = $line->coord_of ($offset) 1491=item ($row, $col) = $line->coord_of ($offset)
1148 1492
1149Translates a string offset into terminal coordinates again. 1493Translates a string offset into terminal coordinates again.
1150 1494
1263 1607
1264Calls XUngrab for the most recent grab. Is called automatically on 1608Calls 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 1609evaluation errors, as it is better to lose the grab in the error case as
1266the session. 1610the session.
1267 1611
1612=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1613
1614=item $atom_name = $term->XGetAtomName ($atom)
1615
1616=item @atoms = $term->XListProperties ($window)
1617
1618=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1619
1620=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1621
1622=item $term->XDeleteProperty ($window, $property)
1623
1624=item $window = $term->DefaultRootWindow
1625
1626=item $term->XReparentWindow ($window, $parent, [$x, $y])
1627
1628=item $term->XMapWindow ($window)
1629
1630=item $term->XUnmapWindow ($window)
1631
1632=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1633
1634=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1635
1636=item $term->XChangeInput ($window, $add_events[, $del_events])
1637
1638Various X or X-related functions. The C<$term> object only serves as
1639the source of the display, otherwise those functions map more-or-less
1640directory onto the X functions of the same name.
1641
1268=back 1642=back
1269 1643
1270=cut 1644=cut
1271 1645
1272package urxvt::popup; 1646package urxvt::popup;
1286 1660
1287 $item->{render} ||= sub { $_[0]{text} }; 1661 $item->{render} ||= sub { $_[0]{text} };
1288 1662
1289 push @{ $self->{item} }, $item; 1663 push @{ $self->{item} }, $item;
1290} 1664}
1665
1666=item $popup->add_title ($title)
1667
1668Adds a non-clickable title to the popup.
1669
1670=cut
1671
1672sub add_title {
1673 my ($self, $title) = @_;
1674
1675 $self->add_item ({
1676 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1677 text => $title,
1678 activate => sub { },
1679 });
1680}
1681
1682=item $popup->add_separator ([$sepchr])
1683
1684Creates a separator, optionally using the character given as C<$sepchr>.
1685
1686=cut
1291 1687
1292sub add_separator { 1688sub add_separator {
1293 my ($self, $sep) = @_; 1689 my ($self, $sep) = @_;
1294 1690
1295 $sep ||= "="; 1691 $sep ||= "=";
1300 render => sub { $sep x $self->{term}->ncol }, 1696 render => sub { $sep x $self->{term}->ncol },
1301 activate => sub { }, 1697 activate => sub { },
1302 }); 1698 });
1303} 1699}
1304 1700
1305sub add_title { 1701=item $popup->add_button ($text, $cb)
1306 my ($self, $title) = @_;
1307 1702
1308 $self->add_item ({ 1703Adds a clickable button to the popup. C<$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" }, 1704selected.
1310 text => $title, 1705
1311 activate => sub { }, 1706=cut
1312 });
1313}
1314 1707
1315sub add_button { 1708sub add_button {
1316 my ($self, $text, $cb) = @_; 1709 my ($self, $text, $cb) = @_;
1317 1710
1318 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1711 $self->add_item ({ type => "button", text => $text, activate => $cb});
1319} 1712}
1713
1714=item $popup->add_toggle ($text, $cb, $initial_value)
1715
1716Adds a toggle/checkbox item to the popup. Teh callback gets called
1717whenever it gets toggled, with a boolean indicating its value as its first
1718argument.
1719
1720=cut
1320 1721
1321sub add_toggle { 1722sub add_toggle {
1322 my ($self, $text, $cb, $value) = @_; 1723 my ($self, $text, $cb, $value) = @_;
1323 1724
1324 my $item; $item = { 1725 my $item; $item = {
1325 type => "button", 1726 type => "button",
1326 text => " $text", 1727 text => " $text",
1327 value => $value, 1728 value => $value,
1328 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1729 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1329 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1730 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1330 }; 1731 };
1331 1732
1332 $self->add_item ($item); 1733 $self->add_item ($item);
1333} 1734}
1735
1736=item $popup->show
1737
1738Displays the popup (which is initially hidden).
1739
1740=cut
1334 1741
1335sub show { 1742sub show {
1336 my ($self) = @_; 1743 my ($self) = @_;
1337 1744
1338 local $urxvt::popup::self = $self; 1745 local $urxvt::popup::self = $self;
1339 1746
1747 my $env = $self->{term}->env;
1748 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1749 delete $env->{LC_ALL};
1340 local $ENV{LC_ALL} = $self->{term}->locale; 1750 $env->{LC_CTYPE} = $self->{term}->locale;
1341 1751
1342 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1752 urxvt::term->new ($env, "popup",
1753 "--perl-lib" => "", "--perl-ext-common" => "",
1754 "-pty-fd" => -1, "-sl" => 0,
1755 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1343 "--transient-for" => $self->{term}->parent, 1756 "--transient-for" => $self->{term}->parent,
1344 "-display" => $self->{term}->display_id, 1757 "-display" => $self->{term}->display_id,
1345 "-pe" => "urxvt-popup") 1758 "-pe" => "urxvt-popup")
1346 or die "unable to create popup window\n"; 1759 or die "unable to create popup window\n";
1347} 1760}
1348 1761
1349sub DESTROY { 1762sub DESTROY {
1350 my ($self) = @_; 1763 my ($self) = @_;
1351 1764
1352 delete $self->{term}{_destroy}{$self}; 1765 delete $self->{term}{_destroy}{$self};
1353 $self->{term}->ungrab; 1766 $self->{term}->ungrab;
1354} 1767}
1768
1769=back
1770
1771=cut
1772
1773package urxvt::watcher;
1774
1775@urxvt::timer::ISA = __PACKAGE__;
1776@urxvt::iow::ISA = __PACKAGE__;
1777@urxvt::pw::ISA = __PACKAGE__;
1778@urxvt::iw::ISA = __PACKAGE__;
1355 1779
1356=head2 The C<urxvt::timer> Class 1780=head2 The C<urxvt::timer> Class
1357 1781
1358This class implements timer watchers/events. Time is represented as a 1782This class implements timer watchers/events. Time is represented as a
1359fractional number of seconds since the epoch. Example: 1783fractional number of seconds since the epoch. Example:
1397Start the timer. 1821Start the timer.
1398 1822
1399=item $timer = $timer->start ($tstamp) 1823=item $timer = $timer->start ($tstamp)
1400 1824
1401Set the event trigger time to C<$tstamp> and start the timer. 1825Set the event trigger time to C<$tstamp> and start the timer.
1826
1827=item $timer = $timer->after ($delay)
1828
1829Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1402 1830
1403=item $timer = $timer->stop 1831=item $timer = $timer->stop
1404 1832
1405Stop the timer. 1833Stop the timer.
1406 1834
1453 1881
1454Stop watching for events on the given filehandle. 1882Stop watching for events on the given filehandle.
1455 1883
1456=back 1884=back
1457 1885
1886=head2 The C<urxvt::iw> Class
1887
1888This class implements idle watchers, that get called automatically when
1889the process is idle. They should return as fast as possible, after doing
1890some useful work.
1891
1892=over 4
1893
1894=item $iw = new urxvt::iw
1895
1896Create a new idle watcher object in stopped state.
1897
1898=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1899
1900Set the callback to be called when the watcher triggers.
1901
1902=item $timer = $timer->start
1903
1904Start the watcher.
1905
1906=item $timer = $timer->stop
1907
1908Stop the watcher.
1909
1910=back
1911
1912=head2 The C<urxvt::pw> Class
1913
1914This class implements process watchers. They create an event whenever a
1915process exits, after which they stop automatically.
1916
1917 my $pid = fork;
1918 ...
1919 $term->{pw} = urxvt::pw
1920 ->new
1921 ->start ($pid)
1922 ->cb (sub {
1923 my ($pw, $exit_status) = @_;
1924 ...
1925 });
1926
1927=over 4
1928
1929=item $pw = new urxvt::pw
1930
1931Create a new process watcher in stopped state.
1932
1933=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1934
1935Set the callback to be called when the timer triggers.
1936
1937=item $pw = $timer->start ($pid)
1938
1939Tells the wqtcher to start watching for process C<$pid>.
1940
1941=item $pw = $pw->stop
1942
1943Stop the watcher.
1944
1945=back
1946
1458=head1 ENVIRONMENT 1947=head1 ENVIRONMENT
1459 1948
1460=head2 URXVT_PERL_VERBOSITY 1949=head2 URXVT_PERL_VERBOSITY
1461 1950
1462This variable controls the verbosity level of the perl extension. Higher 1951This variable controls the verbosity level of the perl extension. Higher
1466 1955
1467=item == 0 - fatal messages 1956=item == 0 - fatal messages
1468 1957
1469=item >= 3 - script loading and management 1958=item >= 3 - script loading and management
1470 1959
1471=item >=10 - all events received 1960=item >=10 - all called hooks
1961
1962=item >=11 - hook reutrn values
1472 1963
1473=back 1964=back
1474 1965
1475=head1 AUTHOR 1966=head1 AUTHOR
1476 1967

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