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Revision 1.74 by root, Tue Jan 10 04:26:54 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.
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 };
70 116
71=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
72 118
73Adds regex search functionality to the scrollback buffer, triggered 119Adds regex search functionality to the scrollback buffer, triggered
74by a hotkey (default: C<M-s>). When in search mode, normal terminal 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
75input/output is suspended. 121input/output is suspended and a regex is displayed at the bottom of the
122screen.
76 123
77C</> starts an incremental regex search, C<n> searches further, C<p> or 124Inputting characters appends them to the regex and continues incremental
78C<N> jump to the previous match, C<G> jumps to the bottom and clears the 125search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
79history, C<enter> leaves search mode at the current position and C<escape> 126search upwards/downwards in the scrollback buffer, C<End> jumps to the
80returns to the original position. 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.
81 131
82=item digital-clock 132=item readline (enabled by default)
83 133
84Displays a digital clock using the built-in overlay. 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.
85 200
86=item mark-urls 201=item mark-urls
87 202
88Uses 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
89 215
90=item block-graphics-to-ascii 216=item block-graphics-to-ascii
91 217
92A 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,
93by replacing all line-drawing characters (U+2500 .. U+259F) by a 219by replacing all line-drawing characters (U+2500 .. U+259F) by a
94similar-looking ascii character. 220similar-looking ascii character.
95 221
222=item digital-clock
223
224Displays a digital clock using the built-in overlay.
225
96=item example-refresh-hooks 226=item example-refresh-hooks
97 227
98Displays 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
99window. Illustrates overwriting the refresh callbacks to create your own 229window. Illustrates overwriting the refresh callbacks to create your own
100overlays or changes. 230overlays or changes.
101 231
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
102=back 261=back
262
263=head1 API DOCUMENTATION
103 264
104=head2 General API Considerations 265=head2 General API Considerations
105 266
106All objects (such as terminals, time watchers etc.) are typical 267All objects (such as terminals, time watchers etc.) are typical
107reference-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
120=over 4 281=over 4
121 282
122=item $text 283=item $text
123 284
124Rxvt-unicodes special way of encoding text, where one "unicode" character 285Rxvt-unicodes special way of encoding text, where one "unicode" character
125always 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.
126 287
127=item $string 288=item $string
128 289
129A 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
130characters and is to be distinguished with text encoded in a specific 291characters and is to be distinguished with text encoded in a specific
176called whenever the relevant event happens. 337called whenever the relevant event happens.
177 338
178The 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
179the in the C<Extension Objects> section. 340the in the C<Extension Objects> section.
180 341
181B<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
182event 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
183skipped, and the relevant action might not be carried out by the C++ code. 344relevant action might not be carried out by the C++ code.
184 345
185I<< When in doubt, return a false value (preferably C<()>). >> 346I<< When in doubt, return a false value (preferably C<()>). >>
186 347
187=over 4 348=over 4
188 349
189=item on_init $term 350=item on_init $term
190 351
191Called after a new terminal object has been initialized, but before 352Called after a new terminal object has been initialized, but before
192windows 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
193call or deliver senseless data, as terminal size and other characteristics 354call or deliver senseless data, as terminal size and other characteristics
194have not yet been determined. You can safely query and change resources, 355have not yet been determined. You can safely query and change resources
195though. 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.
196 369
197=item on_reset $term 370=item on_reset $term
198 371
199Called 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
200control 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
201variables. 374variables.
202 375
203=item on_start $term 376=item on_child_start $term, $pid
204 377
205Called at the very end of initialisation of a new terminal, just before 378Called just after the child process has been C<fork>ed.
206returning 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>.
207 384
208=item on_sel_make $term, $eventtime 385=item on_sel_make $term, $eventtime
209 386
210Called 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
211selection 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
225=item on_sel_extend $term 402=item on_sel_extend $term
226 403
227Called 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
228click) and is either supposed to return false (normal operation), or 405click) and is either supposed to return false (normal operation), or
229should 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
230processing. 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.
231 410
232See the F<selection> example extension. 411See the F<selection> example extension.
233 412
234=item on_view_change $term, $offset 413=item on_view_change $term, $offset
235 414
302 481
303Called whenever the user presses a key combination that has a 482Called whenever the user presses a key combination that has a
304C<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>
305resource in the @@RXVT_NAME@@(1) manpage). 484resource in the @@RXVT_NAME@@(1) manpage).
306 485
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
307=item on_focus_in $term 492=item on_focus_in $term
308 493
309Called whenever the window gets the keyboard focus, before rxvt-unicode 494Called whenever the window gets the keyboard focus, before rxvt-unicode
310does focus in processing. 495does focus in processing.
311 496
312=item on_focus_out $term 497=item on_focus_out $term
313 498
314Called wheneever the window loses keyboard focus, before rxvt-unicode does 499Called wheneever the window loses keyboard focus, before rxvt-unicode does
315focus out processing. 500focus out processing.
316 501
502=item on_configure_notify $term, $event
503
504=item on_property_notify $term, $event
505
317=item on_key_press $term, $event, $keysym, $octets 506=item on_key_press $term, $event, $keysym, $octets
318 507
319=item on_key_release $term, $event, $keysym 508=item on_key_release $term, $event, $keysym
320 509
321=item on_button_press $term, $event 510=item on_button_press $term, $event
330 519
331Called whenever the corresponding X event is received for the terminal If 520Called whenever the corresponding X event is received for the terminal If
332the 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.
333 522
334The 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
335manpage), 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
336and column under the mouse cursor. 525(real, not screen-based) row and column under the mouse cursor.
337 526
338C<on_key_press> additionally receives the string rxvt-unicode would 527C<on_key_press> additionally receives the string rxvt-unicode would
339output, if any, in locale-specific encoding. 528output, if any, in locale-specific encoding.
340 529
341subwindow. 530subwindow.
342 531
343=back 532=item on_client_message $term, $event
344 533
345=head2 Variables in the C<urxvt> Package 534=item on_wm_protocols $term, $event
346 535
347=over 4 536=item on_wm_delete_window $term, $event
348 537
349=item $urxvt::TERM 538Called when various types of ClientMessage events are received (all with
350 539format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
351The current terminal. This variable stores the current C<urxvt::term>
352object, whenever a callback/hook is executing.
353
354=back
355
356=head2 Functions in the C<urxvt> Package
357
358=over 4
359
360=item $term = new urxvt [arg...]
361
362Creates a new terminal, very similar as if you had started it with
363C<system $binfile, arg...>. Croaks (and probably outputs an error message)
364if the new instance couldn't be created. Returns C<undef> if the new
365instance didn't initialise perl, and the terminal object otherwise. The
366C<init> and C<start> hooks will be called during the call.
367
368=item urxvt::fatal $errormessage
369
370Fatally aborts execution with the given error message. Avoid at all
371costs! The only time this is acceptable is when the terminal process
372starts up.
373
374=item urxvt::warn $string
375
376Calls C<rxvt_warn> with the given string which should not include a
377newline. The module also overwrites the C<warn> builtin with a function
378that calls this function.
379
380Using this function has the advantage that its output ends up in the
381correct place, e.g. on stderr of the connecting urxvtc client.
382
383=item $is_safe = urxvt::safe
384
385Returns true when it is safe to do potentially unsafe things, such as
386evaluating perl code specified by the user. This is true when urxvt was
387started setuid or setgid.
388
389=item $time = urxvt::NOW
390
391Returns the "current time" (as per the event loop).
392
393=item urxvt::CurrentTime
394
395=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
396Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
397Button4Mask, Button5Mask, AnyModifier
398
399Various constants for use in X calls and event processing.
400
401=back
402
403=head2 RENDITION
404
405Rendition bitsets contain information about colour, font, font styles and
406similar information for each screen cell.
407
408The following "macros" deal with changes in rendition sets. You should
409never just create a bitset, you should always modify an existing one,
410as they contain important information required for correct operation of
411rxvt-unicode.
412
413=over 4
414
415=item $rend = urxvt::DEFAULT_RSTYLE
416
417Returns the default rendition, as used when the terminal is starting up or
418being reset. Useful as a base to start when creating renditions.
419
420=item $rend = urxvt::OVERLAY_RSTYLE
421
422Return the rendition mask used for overlays by default.
423
424=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
425
426Return the bit that enabled bold, italic, blink, reverse-video and
427underline, respectively. To enable such a style, just logically OR it into
428the bitset.
429
430=item $foreground = urxvt::GET_BASEFG $rend
431
432=item $background = urxvt::GET_BASEBG $rend
433
434Return the foreground/background colour index, respectively.
435
436=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
437
438=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
439
440Replace the foreground/background colour in the rendition mask with the
441specified one.
442
443=item $value = urxvt::GET_CUSTOM ($rend)
444
445Return the "custom" value: Every rendition has 5 bits for use by
446extensions. They can be set and changed as you like and are initially
447zero.
448
449=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
450
451Change the custom value.
452 540
453=back 541=back
454 542
455=cut 543=cut
456 544
462use Scalar::Util (); 550use Scalar::Util ();
463use List::Util (); 551use List::Util ();
464 552
465our $VERSION = 1; 553our $VERSION = 1;
466our $TERM; 554our $TERM;
555our @TERM_INIT;
556our @TERM_EXT;
467our @HOOKNAME; 557our @HOOKNAME;
468our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 558our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
469our %OPTION; 559our %OPTION;
470 560
471our $LIBDIR; 561our $LIBDIR;
472our $RESNAME; 562our $RESNAME;
473our $RESCLASS; 563our $RESCLASS;
474our $RXVTNAME; 564our $RXVTNAME;
475 565
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
476BEGIN { 713BEGIN {
477 urxvt->bootstrap;
478
479 # overwrite perl's warn 714 # overwrite perl's warn
480 *CORE::GLOBAL::warn = sub { 715 *CORE::GLOBAL::warn = sub {
481 my $msg = join "", @_; 716 my $msg = join "", @_;
482 $msg .= "\n" 717 $msg .= "\n"
483 unless $msg =~ /\n$/; 718 unless $msg =~ /\n$/;
484 urxvt::warn ($msg); 719 urxvt::warn ($msg);
485 }; 720 };
486
487 delete $ENV{IFS};
488 delete $ENV{CDPATH};
489 delete $ENV{BASH_ENV};
490 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
491} 721}
492 722
493my @hook_count; 723no warnings 'utf8';
724
494my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 725my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
495 726
496sub verbose { 727sub verbose {
497 my ($level, $msg) = @_; 728 my ($level, $msg) = @_;
498 warn "$msg\n" if $level <= $verbosity; 729 warn "$msg\n" if $level <= $verbosity;
499} 730}
500 731
501my $extension_pkg = "extension0000";
502my %extension_pkg; 732my %extension_pkg;
503 733
504# load a single script into its own package, once only 734# load a single script into its own package, once only
505sub extension_package($) { 735sub extension_package($) {
506 my ($path) = @_; 736 my ($path) = @_;
507 737
508 $extension_pkg{$path} ||= do { 738 $extension_pkg{$path} ||= do {
509 my $pkg = "urxvt::" . ($extension_pkg++); 739 $path =~ /([^\/\\]+)$/;
740 my $pkg = $1;
741 $pkg =~ s/[^[:word:]]/_/g;
742 $pkg = "urxvt::ext::$pkg";
510 743
511 verbose 3, "loading extension '$path' into package '$pkg'"; 744 verbose 3, "loading extension '$path' into package '$pkg'";
512 745
513 open my $fh, "<:raw", $path 746 open my $fh, "<:raw", $path
514 or die "$path: $!"; 747 or die "$path: $!";
515 748
516 my $source = untaint 749 my $source =
517 "package $pkg; use strict; use utf8;\n" 750 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
518 . "use base urxvt::term::extension::;\n"
519 . "#line 1 \"$path\"\n{\n" 751 . "#line 1 \"$path\"\n{\n"
520 . (do { local $/; <$fh> }) 752 . (do { local $/; <$fh> })
521 . "\n};\n1"; 753 . "\n};\n1";
522 754
523 eval $source 755 eval $source
537 if ($htype == 0) { # INIT 769 if ($htype == 0) { # INIT
538 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 770 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
539 771
540 my %ext_arg; 772 my %ext_arg;
541 773
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
542 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 783 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
543 if ($_ eq "default") { 784 if ($_ eq "default") {
544 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 785 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
545 } elsif (/^-(.*)$/) { 786 } elsif (/^-(.*)$/) {
546 delete $ext_arg{$1}; 787 delete $ext_arg{$1};
547 } elsif (/^([^<]+)<(.*)>$/) { 788 } elsif (/^([^<]+)<(.*)>$/) {
548 push @{ $ext_arg{$1} }, $2; 789 push @{ $ext_arg{$1} }, $2;
549 } else { 790 } else {
572 if $verbosity >= 10; 813 if $verbosity >= 10;
573 814
574 keys %$cb; 815 keys %$cb;
575 816
576 while (my ($pkg, $cb) = each %$cb) { 817 while (my ($pkg, $cb) = each %$cb) {
577 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 818 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
578 and last; 819 $retval ||= $retval_;
579 820
580 if ($@) { 821 if ($@) {
581 $TERM->ungrab; # better to lose the grab than the session 822 $TERM->ungrab; # better to lose the grab than the session
582 warn $@; 823 warn $@;
583 } 824 }
584 } 825 }
826
827 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
828 if $verbosity >= 11;
585 } 829 }
586 830
587 if ($htype == 1) { # DESTROY 831 if ($htype == 1) { # DESTROY
588 if (my $hook = delete $TERM->{_hook}) {
589 for my $htype (0..$#$hook) {
590 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
591 or set_should_invoke $htype, 0;
592 }
593 }
594
595 # clear package objects 832 # clear package objects
596 %$_ = () for values %{ $TERM->{_pkg} }; 833 %$_ = () for values %{ $TERM->{_pkg} };
597 834
598 # clear package 835 # clear package
599 %$TERM = (); 836 %$TERM = ();
613 while (my ($name, $cb) = each %hook) { 850 while (my ($name, $cb) = each %hook) {
614 my $htype = $HOOKTYPE{uc $name}; 851 my $htype = $HOOKTYPE{uc $name};
615 defined $htype 852 defined $htype
616 or Carp::croak "unsupported hook type '$name'"; 853 or Carp::croak "unsupported hook type '$name'";
617 854
855 $self->set_should_invoke ($htype, +1)
618 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 856 unless exists $self->{term}{_hook}[$htype]{$pkg};
619 $hook_count[$htype]++
620 or urxvt::set_should_invoke $htype, 1;
621 }
622 857
623 $self->{term}{_hook}[$htype]{$pkg} = $cb; 858 $self->{term}{_hook}[$htype]{$pkg} = $cb;
624 } 859 }
625} 860}
626 861
631 for my $name (@hook) { 866 for my $name (@hook) {
632 my $htype = $HOOKTYPE{uc $name}; 867 my $htype = $HOOKTYPE{uc $name};
633 defined $htype 868 defined $htype
634 or Carp::croak "unsupported hook type '$name'"; 869 or Carp::croak "unsupported hook type '$name'";
635 870
871 $self->set_should_invoke ($htype, -1)
636 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 872 if delete $self->{term}{_hook}[$htype]{$pkg};
637 --$hook_count[$htype]
638 or urxvt::set_should_invoke $htype, 0;
639 }
640 } 873 }
641} 874}
642 875
643our $AUTOLOAD; 876our $AUTOLOAD;
644 877
675 908
676=head2 The C<urxvt::anyevent> Class 909=head2 The C<urxvt::anyevent> Class
677 910
678The 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
679C<AnyEvent> module - any module using it will work inside urxvt without 912C<AnyEvent> module - any module using it will work inside urxvt without
680further work. The only exception is that you cannot wait on condition 913further programming. The only exception is that you cannot wait on
681variables, 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
682cannot use blocking APIs, but the non-blocking variant should work. 915is that you cannot use blocking APIs, but the non-blocking variant should
916work.
683 917
684=cut 918=cut
685 919
686our $VERSION = 1; 920our $VERSION = 1;
687 921
749# find on_xxx subs in the package and register them 983# find on_xxx subs in the package and register them
750# as hooks 984# as hooks
751sub register_package { 985sub register_package {
752 my ($self, $pkg, $argv) = @_; 986 my ($self, $pkg, $argv) = @_;
753 987
988 no strict 'refs';
989
990 urxvt::verbose 6, "register package $pkg to $self";
991
992 @{"$pkg\::ISA"} = urxvt::term::extension::;
993
754 my $proxy = bless { 994 my $proxy = bless {
755 _pkg => $pkg, 995 _pkg => $pkg,
756 argv => $argv, 996 argv => $argv,
757 }, $pkg; 997 }, $pkg;
758 Scalar::Util::weaken ($proxy->{term} = $self); 998 Scalar::Util::weaken ($proxy->{term} = $self);
764 $proxy->enable ($name => $ref); 1004 $proxy->enable ($name => $ref);
765 } 1005 }
766 } 1006 }
767} 1007}
768 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
769=item $term->destroy 1028=item $term->destroy
770 1029
771Destroy 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}
772 1058
773=item $isset = $term->option ($optval[, $set]) 1059=item $isset = $term->option ($optval[, $set])
774 1060
775Returns true if the option specified by C<$optval> is enabled, and 1061Returns true if the option specified by C<$optval> is enabled, and
776optionally 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
779Here 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
780source file F</src/optinc.h> to see the actual list: 1066source file F</src/optinc.h> to see the actual list:
781 1067
782 borderLess console cursorBlink cursorUnderline hold iconic insecure 1068 borderLess console cursorBlink cursorUnderline hold iconic insecure
783 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1069 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
784 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1070 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
785 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1071 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
786 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1072 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
787 tripleclickwords utmpInhibit visualBell 1073 transparent tripleclickwords utmpInhibit visualBell
788 1074
789=item $value = $term->resource ($name[, $newval]) 1075=item $value = $term->resource ($name[, $newval])
790 1076
791Returns the current resource value associated with a given name and 1077Returns the current resource value associated with a given name and
792optionally 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>
809 1095
810 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1096 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
811 borderLess color cursorBlink cursorUnderline cutchars delete_key 1097 borderLess color cursorBlink cursorUnderline cutchars delete_key
812 display_name embed ext_bwidth fade font geometry hold iconName 1098 display_name embed ext_bwidth fade font geometry hold iconName
813 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1099 imFont imLocale inputMethod insecure int_bwidth intensityStyles
814 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1100 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
815 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1101 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
816 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1102 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
817 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1103 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
818 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1104 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
819 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1105 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
820 shade term_name title transparent transparent_all tripleclickwords 1106 secondaryScreen secondaryScroll selectstyle shade term_name title
821 utmpInhibit visualBell 1107 transient_for transparent transparent_all tripleclickwords utmpInhibit
1108 visualBell
822 1109
823=cut 1110=cut
824 1111
825sub resource($$;$) { 1112sub resource($$;$) {
826 my ($self, $name) = (shift, shift); 1113 my ($self, $name) = (shift, shift);
827 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1114 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
828 &urxvt::term::_resource 1115 &urxvt::term::_resource
829} 1116}
830 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
831=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1129=item $success = $term->parse_keysym ($keysym_spec, $command_string)
832 1130
833Adds a keymap translation exactly as specified via a resource. See the 1131Adds a keymap translation exactly as specified via a resource. See the
834C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1132C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
835 1133
850=item ($row, $col) = $term->selection_end ([$row, $col]) 1148=item ($row, $col) = $term->selection_end ([$row, $col])
851 1149
852Return the current values of the selection mark, begin or end positions, 1150Return the current values of the selection mark, begin or end positions,
853and optionally set them to new values. 1151and optionally set them to new values.
854 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
855=item $success = $term->selection_grab ($eventtime) 1160=item $success = $term->selection_grab ($eventtime)
856 1161
857Try 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
858by 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.
859 1165
860=item $oldtext = $term->selection ([$newtext]) 1166=item $oldtext = $term->selection ([$newtext])
861 1167
862Return the current selection text and optionally replace it by C<$newtext>. 1168Return the current selection text and optionally replace it by C<$newtext>.
863 1169
956Convert the given locale-encoded octets into a perl string. 1262Convert the given locale-encoded octets into a perl string.
957 1263
958=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])
959 1265
960XORs the rendition values in the given span with the provided value 1266XORs the rendition values in the given span with the provided value
961(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
962to the selection. 1268refresh hooks to provide effects similar to the selection.
963 1269
964=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[, $rstyle2]])
965 1271
966Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1272Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
967whitespace will additionally be xored with the C<$rstyle2>, which defaults 1273whitespace will additionally be xored with the C<$rstyle2>, which defaults
968to 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
969it instead. 1275it instead. Both styles I<MUST NOT> contain font styles.
970 1276
971=item $term->scr_bell 1277=item $term->scr_bell
972 1278
973Ring the bell! 1279Ring the bell!
974 1280
981 1287
982Normally 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
983confused by changes in cursor position or scrolling. Its useful inside a 1289confused by changes in cursor position or scrolling. Its useful inside a
984C<on_add_lines> hook, though. 1290C<on_add_lines> hook, though.
985 1291
1292=item $term->scr_change_screen ($screen)
1293
1294Switch to given screen - 0 primary, 1 secondary.
1295
986=item $term->cmd_parse ($octets) 1296=item $term->cmd_parse ($octets)
987 1297
988Similar 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
989locale-specific encoding of the terminal and can contain command sequences 1299locale-specific encoding of the terminal and can contain command sequences
990(escape codes) that will be interpreted. 1300(escape codes) that will be interpreted.
1008 1318
1009=item $windowid = $term->vt 1319=item $windowid = $term->vt
1010 1320
1011Return the window id of the terminal window. 1321Return the window id of the terminal window.
1012 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
1013=item $window_width = $term->width 1330=item $window_width = $term->width
1014 1331
1015=item $window_height = $term->height 1332=item $window_height = $term->height
1016 1333
1017=item $font_width = $term->fwidth 1334=item $font_width = $term->fwidth
1030 1347
1031=item $max_scrollback = $term->saveLines 1348=item $max_scrollback = $term->saveLines
1032 1349
1033=item $nrow_plus_saveLines = $term->total_rows 1350=item $nrow_plus_saveLines = $term->total_rows
1034 1351
1035=item $lines_in_scrollback = $term->nsaved 1352=item $topmost_scrollback_row = $term->top_row
1036 1353
1037Return various integers describing terminal characteristics. 1354Return various integers describing terminal characteristics.
1038 1355
1356=item $x_display = $term->display_id
1357
1358Return the DISPLAY used by rxvt-unicode.
1359
1039=item $lc_ctype = $term->locale 1360=item $lc_ctype = $term->locale
1040 1361
1041Returns the LC_CTYPE category string used by this rxvt-unicode. 1362Returns the LC_CTYPE category string used by this rxvt-unicode.
1042 1363
1043=item $x_display = $term->display_id 1364=item $env = $term->env
1044 1365
1045Return 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}
1046 1378
1047=item $modifiermask = $term->ModLevel3Mask 1379=item $modifiermask = $term->ModLevel3Mask
1048 1380
1049=item $modifiermask = $term->ModMetaMask 1381=item $modifiermask = $term->ModMetaMask
1050 1382
1051=item $modifiermask = $term->ModNumLockMask 1383=item $modifiermask = $term->ModNumLockMask
1052 1384
1053Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1385Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1054AltGr), 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.
1055 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
1056=item $view_start = $term->view_start ([$newvalue]) 1396=item $view_start = $term->view_start ([$newvalue])
1057 1397
1058Returns the negative row number of the topmost line. Minimum value is 1398Returns the row number of the topmost displayed line. Maximum value is
1059C<0>, which displays the normal terminal contents. Larger values scroll 1399C<0>, which displays the normal terminal contents. Lower values scroll
1060this many lines into the scrollback buffer. 1400this many lines into the scrollback buffer.
1061 1401
1062=item $term->want_refresh 1402=item $term->want_refresh
1063 1403
1064Requests a screen refresh. At the next opportunity, rxvt-unicode will 1404Requests a screen refresh. At the next opportunity, rxvt-unicode will
1079line, starting at column C<$start_col> (default C<0>), which is useful 1419line, starting at column C<$start_col> (default C<0>), which is useful
1080to replace only parts of a line. The font index in the rendition will 1420to replace only parts of a line. The font index in the rendition will
1081automatically be updated. 1421automatically be updated.
1082 1422
1083C<$text> is in a special encoding: tabs and wide characters that use more 1423C<$text> is in a special encoding: tabs and wide characters that use more
1084than one cell when displayed are padded with urxvt::NOCHAR characters 1424than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1085(C<chr 65535>). Characters with combining characters and other characters 1425characters. Characters with combining characters and other characters that
1086that 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
1087characters in the private use area. 1427in the private use area.
1088 1428
1089You have to obey this encoding when changing text. The advantage is 1429You have to obey this encoding when changing text. The advantage is
1090that 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
1091characters. 1431characters.
1092 1432
1143Return 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.
1144 1484
1145=item $offset = $line->offset_of ($row, $col) 1485=item $offset = $line->offset_of ($row, $col)
1146 1486
1147Returns the character offset of the given row|col pair within the logical 1487Returns the character offset of the given row|col pair within the logical
1148line. 1488line. Works for rows outside the line, too, and returns corresponding
1489offsets outside the string.
1149 1490
1150=item ($row, $col) = $line->coord_of ($offset) 1491=item ($row, $col) = $line->coord_of ($offset)
1151 1492
1152Translates a string offset into terminal coordinates again. 1493Translates a string offset into terminal coordinates again.
1153 1494
1266 1607
1267Calls XUngrab for the most recent grab. Is called automatically on 1608Calls XUngrab for the most recent grab. Is called automatically on
1268evaluation 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
1269the session. 1610the session.
1270 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
1271=back 1642=back
1272 1643
1273=cut 1644=cut
1274 1645
1275package urxvt::popup; 1646package urxvt::popup;
1289 1660
1290 $item->{render} ||= sub { $_[0]{text} }; 1661 $item->{render} ||= sub { $_[0]{text} };
1291 1662
1292 push @{ $self->{item} }, $item; 1663 push @{ $self->{item} }, $item;
1293} 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<$sepchr>.
1685
1686=cut
1294 1687
1295sub add_separator { 1688sub add_separator {
1296 my ($self, $sep) = @_; 1689 my ($self, $sep) = @_;
1297 1690
1298 $sep ||= "="; 1691 $sep ||= "=";
1303 render => sub { $sep x $self->{term}->ncol }, 1696 render => sub { $sep x $self->{term}->ncol },
1304 activate => sub { }, 1697 activate => sub { },
1305 }); 1698 });
1306} 1699}
1307 1700
1308sub add_title { 1701=item $popup->add_button ($text, $cb)
1309 my ($self, $title) = @_;
1310 1702
1311 $self->add_item ({ 1703Adds a clickable button to the popup. C<$cb> is called whenever it is
1312 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" }, 1704selected.
1313 text => $title, 1705
1314 activate => sub { }, 1706=cut
1315 });
1316}
1317 1707
1318sub add_button { 1708sub add_button {
1319 my ($self, $text, $cb) = @_; 1709 my ($self, $text, $cb) = @_;
1320 1710
1321 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1711 $self->add_item ({ type => "button", text => $text, activate => $cb});
1322} 1712}
1713
1714=item $popup->add_toggle ($text, $cb, $initial_value)
1715
1716Adds a toggle/checkbox item to the popup. Teh callback gets called
1717whenever it gets toggled, with a boolean indicating its value as its first
1718argument.
1719
1720=cut
1323 1721
1324sub add_toggle { 1722sub add_toggle {
1325 my ($self, $text, $cb, $value) = @_; 1723 my ($self, $text, $cb, $value) = @_;
1326 1724
1327 my $item; $item = { 1725 my $item; $item = {
1328 type => "button", 1726 type => "button",
1329 text => " $text", 1727 text => " $text",
1330 value => $value, 1728 value => $value,
1331 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1729 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1332 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1730 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1333 }; 1731 };
1334 1732
1335 $self->add_item ($item); 1733 $self->add_item ($item);
1336} 1734}
1735
1736=item $popup->show
1737
1738Displays the popup (which is initially hidden).
1739
1740=cut
1337 1741
1338sub show { 1742sub show {
1339 my ($self) = @_; 1743 my ($self) = @_;
1340 1744
1341 local $urxvt::popup::self = $self; 1745 local $urxvt::popup::self = $self;
1342 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};
1343 local $ENV{LC_ALL} = $self->{term}->locale; 1750 $env->{LC_CTYPE} = $self->{term}->locale;
1344 1751
1345 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1752 urxvt::term->new ($env, "popup",
1753 "--perl-lib" => "", "--perl-ext-common" => "",
1754 "-pty-fd" => -1, "-sl" => 0,
1755 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1346 "--transient-for" => $self->{term}->parent, 1756 "--transient-for" => $self->{term}->parent,
1347 "-display" => $self->{term}->display_id, 1757 "-display" => $self->{term}->display_id,
1348 "-pe" => "urxvt-popup") 1758 "-pe" => "urxvt-popup")
1349 or die "unable to create popup window\n"; 1759 or die "unable to create popup window\n";
1350} 1760}
1351 1761
1352sub DESTROY { 1762sub DESTROY {
1353 my ($self) = @_; 1763 my ($self) = @_;
1354 1764
1355 delete $self->{term}{_destroy}{$self}; 1765 delete $self->{term}{_destroy}{$self};
1356 $self->{term}->ungrab; 1766 $self->{term}->ungrab;
1357} 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__;
1358 1779
1359=head2 The C<urxvt::timer> Class 1780=head2 The C<urxvt::timer> Class
1360 1781
1361This class implements timer watchers/events. Time is represented as a 1782This class implements timer watchers/events. Time is represented as a
1362fractional number of seconds since the epoch. Example: 1783fractional number of seconds since the epoch. Example:
1400Start the timer. 1821Start the timer.
1401 1822
1402=item $timer = $timer->start ($tstamp) 1823=item $timer = $timer->start ($tstamp)
1403 1824
1404Set 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>.
1405 1830
1406=item $timer = $timer->stop 1831=item $timer = $timer->stop
1407 1832
1408Stop the timer. 1833Stop the timer.
1409 1834
1456 1881
1457Stop watching for events on the given filehandle. 1882Stop watching for events on the given filehandle.
1458 1883
1459=back 1884=back
1460 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
1461=head1 ENVIRONMENT 1947=head1 ENVIRONMENT
1462 1948
1463=head2 URXVT_PERL_VERBOSITY 1949=head2 URXVT_PERL_VERBOSITY
1464 1950
1465This variable controls the verbosity level of the perl extension. Higher 1951This variable controls the verbosity level of the perl extension. Higher
1469 1955
1470=item == 0 - fatal messages 1956=item == 0 - fatal messages
1471 1957
1472=item >= 3 - script loading and management 1958=item >= 3 - script loading and management
1473 1959
1474=item >=10 - all events received 1960=item >=10 - all called hooks
1961
1962=item >=11 - hook reutrn values
1475 1963
1476=back 1964=back
1477 1965
1478=head1 AUTHOR 1966=head1 AUTHOR
1479 1967

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