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Revision 1.18 by root, Tue Jan 3 02:01:27 2006 UTC vs.
Revision 1.50 by root, Sun Jan 8 00:11:38 2006 UTC

17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Everytime a terminal object gets created, scripts specified via the 22Everytime a terminal object gets created, extension scripts specified via
23C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
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
39 39
40=over 4 40=over 4
41 41
42=item selection 42=item selection
43 43
44Miscellaneous selection modifications. 44Intelligent selection. This extension tries to be more intelligent when
45the user extends selections (double-click). Right now, it tries to select
46urls and complete shell-quoted arguments, which is very convenient, too,
47if your F<ls> supports C<--quoting-style=shell>.
48
49It also offers the following bindable event:
45 50
46=over 4 51=over 4
47 52
48=item rot13 53=item rot13
49 54
52 URxvt.keysym.C-M-r: perl:selection:rot13 57 URxvt.keysym.C-M-r: perl:selection:rot13
53 58
54=back 59=back
55 60
56=item digital-clock 61=item digital-clock
62
63Displays a digital clock using the built-in overlay.
64
65=item mark-urls
66
67Uses per-line display filtering (C<on_line_update>) to underline urls.
68
69=item block-graphics-to-ascii
70
71A not very useful example of filtering all text output to the terminal,
72by replacing all line-drawing characters (U+2500 .. U+259F) by a
73similar-looking ascii character.
74
75=item example-refresh-hooks
57 76
58Displays a very simple digital clock in the upper right corner of the 77Displays a very simple digital clock in the upper right corner of the
59window. Illustrates overwriting the refresh callbacks to create your own 78window. Illustrates overwriting the refresh callbacks to create your own
60overlays or changes. 79overlays or changes.
61 80
62=item simple-overlay-clock
63
64Displays a digital clock using the built-in overlay (colourful, useless).
65
66=back 81=back
67 82
68=head2 General API Considerations 83=head2 General API Considerations
69 84
70All objects (such as terminals, time watchers etc.) are typical 85All objects (such as terminals, time watchers etc.) are typical
71reference-to-hash objects. The hash can be used to store anything you 86reference-to-hash objects. The hash can be used to store anything you
72like. All members starting with an underscore (such as C<_ptr> or 87like. All members starting with an underscore (such as C<_ptr> or
73C<_hook>) are reserved for internal uses and must not be accessed or 88C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
74modified). 89modified).
75 90
76When objects are destroyed on the C++ side, the perl object hashes are 91When objects are destroyed on the C++ side, the perl object hashes are
77emptied, so its best to store related objects such as time watchers and 92emptied, so its best to store related objects such as time watchers and
78the like inside the terminal object so they get destroyed as soon as the 93the like inside the terminal object so they get destroyed as soon as the
79terminal is destroyed. 94terminal is destroyed.
80 95
96Argument names also often indicate the type of a parameter. Here are some
97hints on what they mean:
98
99=over 4
100
101=item $text
102
103Rxvt-unicodes special way of encoding text, where one "unicode" character
104always represents one screen cell. See L<row_t> for a discussion of this format.
105
106=item $string
107
108A perl text string, with an emphasis on I<text>. It can store all unicode
109characters and is to be distinguished with text encoded in a specific
110encoding (often locale-specific) and binary data.
111
112=item $octets
113
114Either binary data or - more common - a text string encoded in a
115locale-specific way.
116
117=back
118
81=head2 Hooks 119=head2 Hooks
82 120
83The following subroutines can be declared in loaded scripts, and will be called 121The following subroutines can be declared in extension files, and will be
84whenever the relevant event happens. 122called whenever the relevant event happens.
123
124The first argument passed to them is an object private to each terminal
125and extension package. You can call all C<urxvt::term> methods on it, but
126its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
127object that is shared between all packages is stored in the C<term>
128member. It is, however, blessed intot he package of the extension script,
129so for all practical purposes you can treat an extension script as a class.
85 130
86All of them must return a boolean value. If it is true, then the event 131All of them must return a boolean value. If it is true, then the event
87counts as being I<consumed>, and the invocation of other hooks is skipped, 132counts as being I<consumed>, and the invocation of other hooks is skipped,
88and the relevant action might not be carried out by the C++ code. 133and the relevant action might not be carried out by the C++ code.
89 134
92=over 4 137=over 4
93 138
94=item on_init $term 139=item on_init $term
95 140
96Called after a new terminal object has been initialized, but before 141Called after a new terminal object has been initialized, but before
97windows are created or the command gets run. 142windows are created or the command gets run. Most methods are unsafe to
143call or deliver senseless data, as terminal size and other characteristics
144have not yet been determined. You can safely query and change resources,
145though.
98 146
99=item on_reset $term 147=item on_reset $term
100 148
101Called after the screen is "reset" for any reason, such as resizing or 149Called after the screen is "reset" for any reason, such as resizing or
102control sequences. Here is where you can react on changes to size-related 150control sequences. Here is where you can react on changes to size-related
122requested from the server. The selection text can be queried and changed 170requested from the server. The selection text can be queried and changed
123by calling C<< $term->selection >>. 171by calling C<< $term->selection >>.
124 172
125Returning a true value aborts selection grabbing. It will still be hilighted. 173Returning a true value aborts selection grabbing. It will still be hilighted.
126 174
127=item on_focus_in $term 175=item on_sel_extend $term
128 176
129Called whenever the window gets the keyboard focus, before urxvt does 177Called whenever the user tries to extend the selection (e.g. with a double
130focus in processing. 178click) and is either supposed to return false (normal operation), or
131 179should extend the selection itelf and return true to suppress the built-in
132=item on_focus_out $term
133
134Called wheneever the window loses keyboard focus, before urxvt does focus
135out processing. 180processing.
181
182See the F<selection> example extension.
136 183
137=item on_view_change $term, $offset 184=item on_view_change $term, $offset
138 185
139Called whenever the view offset changes, i..e the user or program 186Called whenever the view offset changes, i..e the user or program
140scrolls. Offset C<0> means display the normal terminal, positive values 187scrolls. Offset C<0> means display the normal terminal, positive values
151number of lines that will be in the scrollback buffer. 198number of lines that will be in the scrollback buffer.
152 199
153=item on_tty_activity $term *NYI* 200=item on_tty_activity $term *NYI*
154 201
155Called whenever the program(s) running in the urxvt window send output. 202Called whenever the program(s) running in the urxvt window send output.
203
204=item on_osc_seq $term, $string
205
206Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207operating system command) is processed. Cursor position and other state
208information is up-to-date when this happens. For interoperability, the
209string should start with the extension name and a colon, to distinguish
210it from commands for other extensions, and this might be enforced in the
211future.
212
213Be careful not ever to trust (in a security sense) the data you receive,
214as its source can not easily be controleld (e-mail content, messages from
215other users on the same system etc.).
216
217=item on_add_lines $term, $string
218
219Called whenever text is about to be output, with the text as argument. You
220can filter/change and output the text yourself by returning a true value
221and calling C<< $term->scr_add_lines >> yourself. Please note that this
222might be very slow, however, as your hook is called for B<all> text being
223output.
224
225=item on_line_update $term, $row
226
227Called whenever a line was updated or changed. Can be used to filter
228screen output (e.g. underline urls or other useless stuff). Only lines
229that are being shown will be filtered, and, due to performance reasons,
230not always immediately.
231
232The row number is always the topmost row of the line if the line spans
233multiple rows.
234
235Please note that, if you change the line, then the hook might get called
236later with the already-modified line (e.g. if unrelated parts change), so
237you cannot just toggle rendition bits, but only set them.
156 238
157=item on_refresh_begin $term 239=item on_refresh_begin $term
158 240
159Called just before the screen gets redrawn. Can be used for overlay 241Called just before the screen gets redrawn. Can be used for overlay
160or similar effects by modify terminal contents in refresh_begin, and 242or similar effects by modify terminal contents in refresh_begin, and
169 251
170Called whenever the user presses a key combination that has a 252Called whenever the user presses a key combination that has a
171C<perl:string> action bound to it (see description of the B<keysym> 253C<perl:string> action bound to it (see description of the B<keysym>
172resource in the @@RXVT_NAME@@(1) manpage). 254resource in the @@RXVT_NAME@@(1) manpage).
173 255
256=item on_focus_in $term
257
258Called whenever the window gets the keyboard focus, before rxvt-unicode
259does focus in processing.
260
261=item on_focus_out $term
262
263Called wheneever the window loses keyboard focus, before rxvt-unicode does
264focus out processing.
265
266=item on_key_press $term, $event, $octets
267
268=item on_key_release $term, $event
269
270=item on_button_press $term, $event
271
272=item on_button_release $term, $event
273
274=item on_motion_notify $term, $event
275
276=item on_map_notify $term, $event
277
278=item on_unmap_notify $term, $event
279
280Called whenever the corresponding X event is received for the terminal If
281the hook returns true, then the even will be ignored by rxvt-unicode.
282
283The event is a hash with most values as named by Xlib (see the XEvent
284manpage), with the additional members C<row> and C<col>, which are the row
285and column under the mouse cursor.
286
287C<on_key_press> additionally receives the string rxvt-unicode would
288output, if any, in locale-specific encoding.
289
290subwindow.
291
292=back
293
294=head2 Variables in the C<urxvt> Package
295
296=over 4
297
298=item $urxvt::TERM
299
300The current terminal. This variable stores the current C<urxvt::term>
301object, whenever a callback/hook is executing.
302
174=back 303=back
175 304
176=head2 Functions in the C<urxvt> Package 305=head2 Functions in the C<urxvt> Package
177 306
178=over 4 307=over 4
308
309=item $term = new urxvt [arg...]
310
311Creates a new terminal, very similar as if you had started it with
312C<system $binfile, arg...>. Croaks (and probably outputs an error message)
313if the new instance couldn't be created. Returns C<undef> if the new
314instance didn't initialise perl, and the terminal object otherwise. The
315C<init> and C<start> hooks will be called during the call.
179 316
180=item urxvt::fatal $errormessage 317=item urxvt::fatal $errormessage
181 318
182Fatally aborts execution with the given error message. Avoid at all 319Fatally aborts execution with the given error message. Avoid at all
183costs! The only time this is acceptable is when the terminal process 320costs! The only time this is acceptable is when the terminal process
193correct place, e.g. on stderr of the connecting urxvtc client. 330correct place, e.g. on stderr of the connecting urxvtc client.
194 331
195=item $time = urxvt::NOW 332=item $time = urxvt::NOW
196 333
197Returns the "current time" (as per the event loop). 334Returns the "current time" (as per the event loop).
335
336=item urxvt::CurrentTime
337
338=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340Button4Mask, Button5Mask, AnyModifier
341
342Various constants for use in X events.
343
344=back
198 345
199=head2 RENDITION 346=head2 RENDITION
200 347
201Rendition bitsets contain information about colour, font, font styles and 348Rendition bitsets contain information about colour, font, font styles and
202similar information for each screen cell. 349similar information for each screen cell.
218Return the rendition mask used for overlays by default. 365Return the rendition mask used for overlays by default.
219 366
220=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline 367=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
221 368
222Return the bit that enabled bold, italic, blink, reverse-video and 369Return the bit that enabled bold, italic, blink, reverse-video and
223underline, respectively. To enable such a style, just or it onto the 370underline, respectively. To enable such a style, just logically OR it into
224bitset. 371the bitset.
225 372
226=item $foreground = urxvt::GET_BASEFG $rend 373=item $foreground = urxvt::GET_BASEFG $rend
227 374
228=item $background = urxvt::GET_BASEBG $rend 375=item $background = urxvt::GET_BASEBG $rend
229 376
234=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 381=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
235 382
236Replace the foreground/background colour in the rendition mask with the 383Replace the foreground/background colour in the rendition mask with the
237specified one. 384specified one.
238 385
386=item $value = urxvt::GET_CUSTOM ($rend)
387
388Return the "custom" value: Every rendition has 5 bits for use by
389extensions. They can be set and changed as you like and are initially
390zero.
391
392=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
393
394Change the custom value.
395
239=back 396=back
240 397
241=cut 398=cut
242 399
243package urxvt; 400package urxvt;
244 401
402use utf8;
245use strict; 403use strict;
404use Scalar::Util ();
405use List::Util ();
246 406
247our $term; 407our $TERM;
248our @HOOKNAME; 408our @HOOKNAME;
409our %OPTION;
249our $LIBDIR; 410our $LIBDIR;
250 411
251BEGIN { 412BEGIN {
252 urxvt->bootstrap; 413 urxvt->bootstrap;
253 414
277 my $name = $HOOKNAME[$htype]; 438 my $name = $HOOKNAME[$htype];
278 439
279 my $ref = $pkg->can ("on_" . lc $name) 440 my $ref = $pkg->can ("on_" . lc $name)
280 or next; 441 or next;
281 442
282 $term->{_hook}[$htype]{$ref*1} = $ref; 443 $TERM->{_hook}[$htype]{$pkg} = $ref;
283 $hook_count[$htype]++ 444 $hook_count[$htype]++
284 or set_should_invoke $htype, 1; 445 or set_should_invoke $htype, 1;
285 } 446 }
286} 447}
287 448
288my $script_pkg = "script0000"; 449my $extension_pkg = "extension0000";
289my %script_pkg; 450my %extension_pkg;
290 451
291# load a single script into its own package, once only 452# load a single script into its own package, once only
292sub script_package($) { 453sub extension_package($) {
293 my ($path) = @_; 454 my ($path) = @_;
294 455
295 $script_pkg{$path} ||= do { 456 $extension_pkg{$path} ||= do {
296 my $pkg = "urxvt::" . ($script_pkg++); 457 my $pkg = "urxvt::" . ($extension_pkg++);
297 458
298 verbose 3, "loading script '$path' into package '$pkg'"; 459 verbose 3, "loading extension '$path' into package '$pkg'";
299 460
300 open my $fh, "<:raw", $path 461 open my $fh, "<:raw", $path
301 or die "$path: $!"; 462 or die "$path: $!";
302 463
303 my $source = "package $pkg; use strict; use utf8;\n" 464 my $source = "package $pkg; use strict; use utf8;\n"
465 . "use base urxvt::term::proxy::;\n"
304 . "#line 1 \"$path\"\n{\n" 466 . "#line 1 \"$path\"\n{\n"
305 . (do { local $/; <$fh> }) 467 . (do { local $/; <$fh> })
306 . "\n};\n1"; 468 . "\n};\n1";
307 469
308 eval $source or die "$path: $@"; 470 eval $source or die "$path: $@";
309 471
310 $pkg 472 $pkg
311 } 473 }
312} 474}
313 475
476our $retval; # return value for urxvt
477
314# called by the rxvt core 478# called by the rxvt core
315sub invoke { 479sub invoke {
316 local $term = shift; 480 local $TERM = shift;
317 my $htype = shift; 481 my $htype = shift;
318 482
319 if ($htype == 0) { # INIT 483 if ($htype == 0) { # INIT
320 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 484 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
485
486 my %want_ext;
321 487
322 for my $ext (split /:/, $term->resource ("perl_ext")) { 488 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
489 if ($_ eq "default") {
490 $want_ext{$_}++ for qw(selection);
491 } elsif (/-(.*)/) {
492 delete $want_ext{$1};
493 } else {
494 $want_ext{$_}++;
495 }
496 }
497
498 for my $ext (keys %want_ext) {
323 my @files = grep -f $_, map "$_/$ext", @dirs; 499 my @files = grep -f $_, map "$_/$ext", @dirs;
324 500
325 if (@files) { 501 if (@files) {
326 register_package script_package $files[0]; 502 register_package extension_package $files[0];
327 } else { 503 } else {
328 warn "perl extension '$ext' not found in perl library search path\n"; 504 warn "perl extension '$ext' not found in perl library search path\n";
329 } 505 }
330 } 506 }
507 }
331 508
509 $retval = undef;
510
511 if (my $cb = $TERM->{_hook}[$htype]) {
512 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
513 if $verbosity >= 10;
514
515 keys %$cb;
516
517 while (my ($pkg, $cb) = each %$cb) {
518 eval {
519 $retval = $cb->(
520 $TERM->{_pkg}{$pkg} ||= do {
521 my $proxy = bless { }, $pkg;
522 Scalar::Util::weaken ($proxy->{term} = $TERM);
523 $proxy
524 },
525 @_,
526 ) and last;
527 };
528 warn $@ if $@;#d#
529 }
530 }
531
332 } elsif ($htype == 1) { # DESTROY 532 if ($htype == 1) { # DESTROY
533 # remove hooks if unused
333 if (my $hook = $term->{_hook}) { 534 if (my $hook = $TERM->{_hook}) {
334 for my $htype (0..$#$hook) { 535 for my $htype (0..$#$hook) {
335 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 536 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
336 or set_should_invoke $htype, 0; 537 or set_should_invoke $htype, 0;
337 } 538 }
338 } 539 }
540
541 # clear package objects
542 %$_ = () for values %{ $TERM->{_pkg} };
543
544 # clear package
545 %$TERM = ();
339 } 546 }
340 547
341 my $cb = $term->{_hook}[$htype] 548 $retval
342 or return;
343
344 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
345 if $verbosity >= 10;
346
347 while (my ($k, $v) = each %$cb) {
348 return 1 if $v->($term, @_);
349 }
350
351 0
352} 549}
353 550
354=back 551sub urxvt::term::proxy::AUTOLOAD {
552 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
553 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
554
555 eval qq{
556 sub $urxvt::term::proxy::AUTOLOAD {
557 my \$proxy = shift;
558 \$proxy->{term}->$1 (\@_)
559 }
560 1
561 } or die "FATAL: unable to compile method forwarder: $@";
562
563 goto &$urxvt::term::proxy::AUTOLOAD;
564}
565
566sub urxvt::destroy_hook::DESTROY {
567 ${$_[0]}->();
568}
569
570sub urxvt::destroy_hook(&) {
571 bless \shift, urxvt::destroy_hook::
572}
355 573
356=head2 The C<urxvt::term> Class 574=head2 The C<urxvt::term> Class
357 575
358=over 4 576=over 4
577
578=item $term->destroy
579
580Destroy the terminal object (close the window, free resources etc.).
581
582=item $isset = $term->option ($optval[, $set])
583
584Returns true if the option specified by C<$optval> is enabled, and
585optionally change it. All option values are stored by name in the hash
586C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
587
588Here is a a likely non-exhaustive list of option names, please see the
589source file F</src/optinc.h> to see the actual list:
590
591 borderLess console cursorBlink cursorUnderline hold iconic insecure
592 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
593 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
594 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
595 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
596 tripleclickwords utmpInhibit visualBell
359 597
360=item $value = $term->resource ($name[, $newval]) 598=item $value = $term->resource ($name[, $newval])
361 599
362Returns the current resource value associated with a given name and 600Returns the current resource value associated with a given name and
363optionally sets a new value. Setting values is most useful in the C<init> 601optionally sets a new value. Setting values is most useful in the C<init>
373 611
374Please note that resource strings will currently only be freed when the 612Please note that resource strings will currently only be freed when the
375terminal is destroyed, so changing options frequently will eat memory. 613terminal is destroyed, so changing options frequently will eat memory.
376 614
377Here is a a likely non-exhaustive list of resource names, not all of which 615Here is a a likely non-exhaustive list of resource names, not all of which
378are supported in every build, please see the source to see the actual 616are supported in every build, please see the source file F</src/rsinc.h>
379list: 617to see the actual list:
380 618
381 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 619 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
382 borderLess color cursorBlink cursorUnderline cutchars delete_key 620 borderLess color cursorBlink cursorUnderline cutchars delete_key
383 display_name embed ext_bwidth fade font geometry hold iconName 621 display_name embed ext_bwidth fade font geometry hold iconName
384 imFont imLocale inputMethod insecure int_bwidth intensityStyles 622 imFont imLocale inputMethod insecure int_bwidth intensityStyles
385 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 623 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
386 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 624 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
387 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 625 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
388 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 626 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
389 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 627 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
390 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 628 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
391 shade term_name title transparent transparent_all tripleclickwords 629 shade term_name title transparent transparent_all tripleclickwords
394=cut 632=cut
395 633
396sub urxvt::term::resource($$;$) { 634sub urxvt::term::resource($$;$) {
397 my ($self, $name) = (shift, shift); 635 my ($self, $name) = (shift, shift);
398 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 636 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
399 goto &urxvt::term::_resource; 637 &urxvt::term::_resource
400} 638}
639
640=item $rend = $term->rstyle ([$new_rstyle])
641
642Return and optionally change the current rendition. Text that is output by
643the terminal application will use this style.
644
645=item ($row, $col) = $term->screen_cur ([$row, $col])
646
647Return the current coordinates of the text cursor position and optionally
648set it (which is usually bad as applications don't expect that).
401 649
402=item ($row, $col) = $term->selection_mark ([$row, $col]) 650=item ($row, $col) = $term->selection_mark ([$row, $col])
403 651
404=item ($row, $col) = $term->selection_beg ([$row, $col]) 652=item ($row, $col) = $term->selection_beg ([$row, $col])
405 653
415 663
416=item $oldtext = $term->selection ([$newtext]) 664=item $oldtext = $term->selection ([$newtext])
417 665
418Return the current selection text and optionally replace it by C<$newtext>. 666Return the current selection text and optionally replace it by C<$newtext>.
419 667
420=item $term->scr_overlay ($x, $y, $text) 668#=item $term->overlay ($x, $y, $text)
421 669#
422Create a simple multi-line overlay box. See the next method for details. 670#Create a simple multi-line overlay box. See the next method for details.
671#
672#=cut
673#
674#sub urxvt::term::scr_overlay {
675# my ($self, $x, $y, $text) = @_;
676#
677# my @lines = split /\n/, $text;
678#
679# my $w = 0;
680# for (map $self->strwidth ($_), @lines) {
681# $w = $_ if $w < $_;
682# }
683#
684# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
685# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
686#}
687
688=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
689
690Create a new (empty) overlay at the given position with the given
691width/height. C<$rstyle> defines the initial rendition style
692(default: C<OVERLAY_RSTYLE>).
693
694If C<$border> is C<2> (default), then a decorative border will be put
695around the box.
696
697If either C<$x> or C<$y> is negative, then this is counted from the
698right/bottom side, respectively.
699
700This method returns an urxvt::overlay object. The overlay will be visible
701as long as the perl object is referenced.
702
703The methods currently supported on C<urxvt::overlay> objects are:
704
705=over 4
706
707=item $overlay->set ($x, $y, $text, $rend)
708
709Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
710text in rxvt-unicode's special encoding and an array of rendition values
711at a specific position inside the overlay.
712
713=item $overlay->hide
714
715If visible, hide the overlay, but do not destroy it.
716
717=item $overlay->show
718
719If hidden, display the overlay again.
720
721=back
722
723=item $popup = $term->popup ($event)
724
725Creates a new C<urxvt::popup> object that implements a popup menu. The
726C<$event> I<must> be the event causing the menu to pop up (a button event,
727currently).
423 728
424=cut 729=cut
425 730
426sub urxvt::term::scr_overlay { 731sub urxvt::term::popup {
427 my ($self, $x, $y, $text) = @_; 732 my ($self, $event) = @_;
428 733
429 my @lines = split /\n/, $text; 734 $self->grab ($event->{time}, 1)
735 or return;
430 736
431 my $w = 0; 737 my $popup = bless {
432 for (map $self->strwidth ($_), @lines) { 738 term => $self,
433 $w = $_ if $w < $_; 739 event => $event,
434 } 740 }, urxvt::popup::;
435 741
436 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 742 Scalar::Util::weaken $popup->{term};
437 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
438}
439 743
440=item $term->scr_overlay_new ($x, $y, $width, $height) 744 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
745 Scalar::Util::weaken $self->{_destroy}{$popup};
441 746
442Create a new (empty) overlay at the given position with the given 747 $popup
443width/height. A border will be put around the box. If either C<$x> or 748}
444C<$y> is negative, then this is counted from the right/bottom side,
445respectively.
446 749
447=item $term->scr_overlay_off
448
449Switch the overlay off again.
450
451=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)
452
453Put a single character (specified numerically) at the given overlay
454position.
455
456=item $term->scr_overlay_set ($x, $y, $text)
457
458Write a string at the given position into the overlay.
459
460=item $cellwidth = $term->strwidth $string 750=item $cellwidth = $term->strwidth ($string)
461 751
462Returns the number of screen-cells this string would need. Correctly 752Returns the number of screen-cells this string would need. Correctly
463accounts for wide and combining characters. 753accounts for wide and combining characters.
464 754
465=item $octets = $term->locale_encode $string 755=item $octets = $term->locale_encode ($string)
466 756
467Convert the given text string into the corresponding locale encoding. 757Convert the given text string into the corresponding locale encoding.
468 758
469=item $string = $term->locale_decode $octets 759=item $string = $term->locale_decode ($octets)
470 760
471Convert the given locale-encoded octets into a perl string. 761Convert the given locale-encoded octets into a perl string.
762
763=item $term->scr_add_lines ($string)
764
765Write the given text string to the screen, as if output by the application
766running inside the terminal. It may not contain command sequences (escape
767codes), but is free to use line feeds, carriage returns and tabs. The
768string is a normal text string, not in locale-dependent encoding.
769
770Normally its not a good idea to use this function, as programs might be
771confused by changes in cursor position or scrolling. Its useful inside a
772C<on_add_lines> hook, though.
773
774=item $term->cmd_parse ($octets)
775
776Similar to C<scr_add_lines>, but the argument must be in the
777locale-specific encoding of the terminal and can contain command sequences
778(escape codes) that will be interpreted.
472 779
473=item $term->tt_write ($octets) 780=item $term->tt_write ($octets)
474 781
475Write the octets given in C<$data> to the tty (i.e. as program input). To 782Write the octets given in C<$data> to the tty (i.e. as program input). To
476pass characters instead of octets, you should convert your strings first 783pass characters instead of octets, you should convert your strings first
477to the locale-specific encoding using C<< $term->locale_encode >>. 784to the locale-specific encoding using C<< $term->locale_encode >>.
478 785
786=item $windowid = $term->parent
787
788Return the window id of the toplevel window.
789
790=item $windowid = $term->vt
791
792Return the window id of the terminal window.
793
794=item $window_width = $term->width
795
796=item $window_height = $term->height
797
798=item $font_width = $term->fwidth
799
800=item $font_height = $term->fheight
801
802=item $font_ascent = $term->fbase
803
479=item $nrow = $term->nrow 804=item $terminal_rows = $term->nrow
480 805
481=item $ncol = $term->ncol 806=item $terminal_columns = $term->ncol
482 807
483Return the number of rows/columns of the terminal window (i.e. as 808=item $has_focus = $term->focus
484specified by C<-geometry>, excluding any scrollback).
485 809
486=item $nsaved = $term->nsaved 810=item $is_mapped = $term->mapped
487 811
488Returns the number of lines in the scrollback buffer. 812=item $max_scrollback = $term->saveLines
813
814=item $nrow_plus_saveLines = $term->total_rows
815
816=item $lines_in_scrollback = $term->nsaved
817
818Return various integers describing terminal characteristics.
819
820=item $modifiermask = $term->ModLevel3Mask
821
822=item $modifiermask = $term->ModMetaMask
823
824=item $modifiermask = $term->ModNumLockMask
825
826Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
827AltGr), the meta key (often Alt) and the num lock key, if applicable.
489 828
490=item $view_start = $term->view_start ([$newvalue]) 829=item $view_start = $term->view_start ([$newvalue])
491 830
492Returns the negative row number of the topmost line. Minimum value is 831Returns the negative row number of the topmost line. Minimum value is
493C<0>, which displays the normal terminal contents. Larger values scroll 832C<0>, which displays the normal terminal contents. Larger values scroll
504=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 843=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
505 844
506Returns the text of the entire row with number C<$row_number>. Row C<0> 845Returns the text of the entire row with number C<$row_number>. Row C<0>
507is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 846is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
508terminal line. The scrollback buffer starts at line C<-1> and extends to 847terminal line. The scrollback buffer starts at line C<-1> and extends to
509line C<< -$term->nsaved >>. 848line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
849is requested.
510 850
511If C<$new_text> is specified, it will replace characters in the current 851If C<$new_text> is specified, it will replace characters in the current
512line, starting at column C<$start_col> (default C<0>), which is useful 852line, starting at column C<$start_col> (default C<0>), which is useful
513to replace only parts of a line. The font index in the rendition will 853to replace only parts of a line. The font index in the rendition will
514automatically be updated. 854automatically be updated.
536 876
537See the section on RENDITION, above. 877See the section on RENDITION, above.
538 878
539=item $length = $term->ROW_l ($row_number[, $new_length]) 879=item $length = $term->ROW_l ($row_number[, $new_length])
540 880
541Returns the number of screen cells that are in use ("the line length"). If 881Returns the number of screen cells that are in use ("the line
542it is C<-1>, then the line is part of a multiple-row logical "line", which 882length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
543means all characters are in use and it is continued on the next row. 883line is joined with the following one.
544 884
885=item $bool = $term->is_longer ($row_number)
886
887Returns true if the row is part of a multiple-row logical "line" (i.e.
888joined with the following row), which means all characters are in use
889and it is continued on the next row (and possibly a continuation of the
890previous row(s)).
891
892=item $line = $term->line ($row_number)
893
894Create and return a new C<urxvt::line> object that stores information
895about the logical line that row C<$row_number> is part of. It supports the
896following methods:
897
898=over 4
899
900=item $text = $line->t ([$new_text])
901
902Returns or replaces the full text of the line, similar to C<ROW_t>
903
904=item $rend = $line->r ([$new_rend])
905
906Returns or replaces the full rendition array of the line, similar to C<ROW_r>
907
908=item $length = $line->l
909
910Returns the length of the line in cells, similar to C<ROW_l>.
911
912=item $rownum = $line->beg
913
914=item $rownum = $line->end
915
916Return the row number of the first/last row of the line, respectively.
917
918=item $offset = $line->offset_of ($row, $col)
919
920Returns the character offset of the given row|col pair within the logical
921line.
922
923=item ($row, $col) = $line->coord_of ($offset)
924
925Translates a string offset into terminal coordinates again.
926
927=back
928
929=cut
930
931sub urxvt::term::line {
932 my ($self, $row) = @_;
933
934 my $maxrow = $self->nrow - 1;
935
936 my ($beg, $end) = ($row, $row);
937
938 --$beg while $self->ROW_is_longer ($beg - 1);
939 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
940
941 bless {
942 term => $self,
943 beg => $beg,
944 end => $end,
945 ncol => $self->ncol,
946 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
947 }, urxvt::line::
948}
949
950sub urxvt::line::t {
951 my ($self) = @_;
952
953 if (@_ > 1)
954 {
955 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
956 for $self->{beg} .. $self->{end};
957 }
958
959 defined wantarray &&
960 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
961 0, $self->{len}
962}
963
964sub urxvt::line::r {
965 my ($self) = @_;
966
967 if (@_ > 1)
968 {
969 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
970 for $self->{beg} .. $self->{end};
971 }
972
973 if (defined wantarray) {
974 my $rend = [
975 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
976 ];
977 $#$rend = $self->{len} - 1;
978 return $rend;
979 }
980
981 ()
982}
983
984sub urxvt::line::beg { $_[0]{beg} }
985sub urxvt::line::end { $_[0]{end} }
986sub urxvt::line::l { $_[0]{len} }
987
988sub urxvt::line::offset_of {
989 my ($self, $row, $col) = @_;
990
991 ($row - $self->{beg}) * $self->{ncol} + $col
992}
993
994sub urxvt::line::coord_of {
995 my ($self, $offset) = @_;
996
997 use integer;
998
999 (
1000 $offset / $self->{ncol} + $self->{beg},
1001 $offset % $self->{ncol}
1002 )
1003}
1004
1005=item ($row, $col) = $line->coord_of ($offset)
545=item $text = $term->special_encode $string 1006=item $text = $term->special_encode $string
546 1007
547Converts a perl string into the special encoding used by rxvt-unicode, 1008Converts a perl string into the special encoding used by rxvt-unicode,
548where one character corresponds to one screen cell. See 1009where one character corresponds to one screen cell. See
549C<< $term->ROW_t >> for details. 1010C<< $term->ROW_t >> for details.
553Converts rxvt-unicodes text reprsentation into a perl string. See 1014Converts rxvt-unicodes text reprsentation into a perl string. See
554C<< $term->ROW_t >> for details. 1015C<< $term->ROW_t >> for details.
555 1016
556=back 1017=back
557 1018
1019=head2 The C<urxvt::popup> Class
1020
1021=over 4
1022
1023=cut
1024
1025package urxvt::popup;
1026
1027sub add_item {
1028 my ($self, $item) = @_;
1029
1030 push @{ $self->{item} }, $item;
1031}
1032
1033sub add_button {
1034 my ($self, $text, $cb) = @_;
1035
1036 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb,
1037 render => sub { $_[0]{text} },
1038 });
1039}
1040
1041sub add_toggle {
1042 my ($self, $text, $cb, $value) = @_;
1043
1044 my $item; $item = {
1045 type => "button",
1046 text => " $text",
1047 value => $value,
1048 render => sub { ($item->{value} ? "✔" : " ") . $text },
1049 activate => sub { $cb->($item->{value} = !$item->{value}); },
1050 };
1051
1052 $self->add_item ($item);
1053}
1054
1055sub show {
1056 my ($self) = @_;
1057
1058 local $urxvt::popup::self = $self;
1059
1060 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1061 "--transient-for" => $self->{term}->parent,
1062 "-pe" => "urxvt-popup")
1063 or die "unable to create popup window\n";
1064}
1065
1066sub DESTROY {
1067 my ($self) = @_;
1068
1069 $self->{term}->ungrab;
1070}
1071
558=head2 The C<urxvt::timer> Class 1072=head2 The C<urxvt::timer> Class
559 1073
560This class implements timer watchers/events. Time is represented as a 1074This class implements timer watchers/events. Time is represented as a
561fractional number of seconds since the epoch. Example: 1075fractional number of seconds since the epoch. Example:
562 1076
563 # create a digital clock display in upper right corner 1077 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
564 $term->{timer} = urxvt::timer 1078 $term->{timer} = urxvt::timer
565 ->new 1079 ->new
566 ->start (urxvt::NOW) 1080 ->interval (1)
567 ->cb (sub { 1081 ->cb (sub {
568 my ($timer) = @_;
569 my $time = $timer->at;
570 $timer->start ($time + 1);
571 $self->scr_overlay (-1, 0, 1082 $term->{overlay}->set (0, 0,
572 POSIX::strftime "%H:%M:%S", localtime $time); 1083 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
573 }); 1084 });
574 1085
575=over 4 1086=over 4
576 1087
577=item $timer = new urxvt::timer 1088=item $timer = new urxvt::timer
578 1089
579Create a new timer object in stopped state. 1090Create a new timer object in started state. It is scheduled to fire
1091immediately.
580 1092
581=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 1093=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
582 1094
583Set the callback to be called when the timer triggers. 1095Set the callback to be called when the timer triggers.
584 1096
587Return the time this watcher will fire next. 1099Return the time this watcher will fire next.
588 1100
589=item $timer = $timer->set ($tstamp) 1101=item $timer = $timer->set ($tstamp)
590 1102
591Set the time the event is generated to $tstamp. 1103Set the time the event is generated to $tstamp.
1104
1105=item $timer = $timer->interval ($interval)
1106
1107Normally (and when C<$interval> is C<0>), the timer will automatically
1108stop after it has fired once. If C<$interval> is non-zero, then the timer
1109is automatically rescheduled at the given intervals.
592 1110
593=item $timer = $timer->start 1111=item $timer = $timer->start
594 1112
595Start the timer. 1113Start the timer.
596 1114
659This variable controls the verbosity level of the perl extension. Higher 1177This variable controls the verbosity level of the perl extension. Higher
660numbers indicate more verbose output. 1178numbers indicate more verbose output.
661 1179
662=over 4 1180=over 4
663 1181
664=item 0 - only fatal messages 1182=item =0 - only fatal messages
665 1183
666=item 3 - script loading and management 1184=item =3 - script loading and management
667 1185
668=item 10 - all events received 1186=item =10 - all events received
669 1187
670=back 1188=back
671 1189
672=head1 AUTHOR 1190=head1 AUTHOR
673 1191

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