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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.18 by root, Tue Jan 3 02:01:27 2006 UTC vs.
Revision 1.23 by root, Tue Jan 3 19:42:53 2006 UTC

39 39
40=over 4 40=over 4
41 41
42=item selection 42=item selection
43 43
44Miscellaneous selection modifications. 44Intelligent selection. This etxension tries to be more intelligent when the user
45extends selections (double-click).
46
47It also offers the following bindable event:
45 48
46=over 4 49=over 4
47 50
48=item rot13 51=item rot13
49 52
52 URxvt.keysym.C-M-r: perl:selection:rot13 55 URxvt.keysym.C-M-r: perl:selection:rot13
53 56
54=back 57=back
55 58
56=item digital-clock 59=item digital-clock
60
61Displays a digital clock using the built-in overlay.
62
63=item example-refresh-hooks
57 64
58Displays a very simple digital clock in the upper right corner of the 65Displays a very simple digital clock in the upper right corner of the
59window. Illustrates overwriting the refresh callbacks to create your own 66window. Illustrates overwriting the refresh callbacks to create your own
60overlays or changes. 67overlays or changes.
61 68
62=item simple-overlay-clock
63
64Displays a digital clock using the built-in overlay (colourful, useless).
65
66=back 69=back
67 70
68=head2 General API Considerations 71=head2 General API Considerations
69 72
70All objects (such as terminals, time watchers etc.) are typical 73All objects (such as terminals, time watchers etc.) are typical
71reference-to-hash objects. The hash can be used to store anything you 74reference-to-hash objects. The hash can be used to store anything you
72like. All members starting with an underscore (such as C<_ptr> or 75like. All members starting with an underscore (such as C<_ptr> or
73C<_hook>) are reserved for internal uses and must not be accessed or 76C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
74modified). 77modified).
75 78
76When objects are destroyed on the C++ side, the perl object hashes are 79When 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 80emptied, 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 81the like inside the terminal object so they get destroyed as soon as the
79terminal is destroyed. 82terminal is destroyed.
80 83
81=head2 Hooks 84=head2 Hooks
82 85
83The following subroutines can be declared in loaded scripts, and will be called 86The following subroutines can be declared in loaded scripts, and will be
84whenever the relevant event happens. 87called whenever the relevant event happens.
88
89The first argument passed to them is an object private to each terminal
90and extension package. You can call all C<urxvt::term> methods on it, but
91its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
92object that is shared between all packages is stored in the C<term>
93member.
85 94
86All of them must return a boolean value. If it is true, then the event 95All 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, 96counts 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. 97and the relevant action might not be carried out by the C++ code.
89 98
121Called whenever a selection has been copied, but before the selection is 130Called whenever a selection has been copied, but before the selection is
122requested from the server. The selection text can be queried and changed 131requested from the server. The selection text can be queried and changed
123by calling C<< $term->selection >>. 132by calling C<< $term->selection >>.
124 133
125Returning a true value aborts selection grabbing. It will still be hilighted. 134Returning a true value aborts selection grabbing. It will still be hilighted.
135
136=item on_sel_extend $term
137
138Called whenever the user tries to extend the selection (e.g. with a double
139click) and is either supposed to return false (normal operation), or
140should extend the selection itelf and return true to suppress the built-in
141processing.
142
143See the F<selection> example extension.
126 144
127=item on_focus_in $term 145=item on_focus_in $term
128 146
129Called whenever the window gets the keyboard focus, before urxvt does 147Called whenever the window gets the keyboard focus, before urxvt does
130focus in processing. 148focus in processing.
171C<perl:string> action bound to it (see description of the B<keysym> 189C<perl:string> action bound to it (see description of the B<keysym>
172resource in the @@RXVT_NAME@@(1) manpage). 190resource in the @@RXVT_NAME@@(1) manpage).
173 191
174=back 192=back
175 193
194=head2 Variables in the C<urxvt> Package
195
196=over 4
197
198=item $urxvt::TERM
199
200The current terminal. Whenever a callback/Hook is bein executed, this
201variable stores the current C<urxvt::term> object.
202
203=back
204
176=head2 Functions in the C<urxvt> Package 205=head2 Functions in the C<urxvt> Package
177 206
178=over 4 207=over 4
179 208
180=item urxvt::fatal $errormessage 209=item urxvt::fatal $errormessage
193correct place, e.g. on stderr of the connecting urxvtc client. 222correct place, e.g. on stderr of the connecting urxvtc client.
194 223
195=item $time = urxvt::NOW 224=item $time = urxvt::NOW
196 225
197Returns the "current time" (as per the event loop). 226Returns the "current time" (as per the event loop).
227
228=back
198 229
199=head2 RENDITION 230=head2 RENDITION
200 231
201Rendition bitsets contain information about colour, font, font styles and 232Rendition bitsets contain information about colour, font, font styles and
202similar information for each screen cell. 233similar information for each screen cell.
218Return the rendition mask used for overlays by default. 249Return the rendition mask used for overlays by default.
219 250
220=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline 251=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
221 252
222Return the bit that enabled bold, italic, blink, reverse-video and 253Return the bit that enabled bold, italic, blink, reverse-video and
223underline, respectively. To enable such a style, just or it onto the 254underline, respectively. To enable such a style, just logically OR it into
224bitset. 255the bitset.
225 256
226=item $foreground = urxvt::GET_BASEFG $rend 257=item $foreground = urxvt::GET_BASEFG $rend
227 258
228=item $background = urxvt::GET_BASEBG $rend 259=item $background = urxvt::GET_BASEBG $rend
229 260
234=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 265=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
235 266
236Replace the foreground/background colour in the rendition mask with the 267Replace the foreground/background colour in the rendition mask with the
237specified one. 268specified one.
238 269
270=item $value = urxvt::GET_CUSTOM ($rend)
271
272Return the "custom" value: Every rendition has 5 bits for use by
273extensions. They can be set and changed as you like and are initially
274zero.
275
276=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
277
278Change the custom value.
279
239=back 280=back
240 281
241=cut 282=cut
242 283
243package urxvt; 284package urxvt;
244 285
245use strict; 286use strict;
287use Scalar::Util ();
246 288
247our $term; 289our $TERM;
248our @HOOKNAME; 290our @HOOKNAME;
249our $LIBDIR; 291our $LIBDIR;
250 292
251BEGIN { 293BEGIN {
252 urxvt->bootstrap; 294 urxvt->bootstrap;
277 my $name = $HOOKNAME[$htype]; 319 my $name = $HOOKNAME[$htype];
278 320
279 my $ref = $pkg->can ("on_" . lc $name) 321 my $ref = $pkg->can ("on_" . lc $name)
280 or next; 322 or next;
281 323
282 $term->{_hook}[$htype]{$ref*1} = $ref; 324 $TERM->{_hook}[$htype]{$pkg} = $ref;
283 $hook_count[$htype]++ 325 $hook_count[$htype]++
284 or set_should_invoke $htype, 1; 326 or set_should_invoke $htype, 1;
285 } 327 }
286} 328}
287 329
311 } 353 }
312} 354}
313 355
314# called by the rxvt core 356# called by the rxvt core
315sub invoke { 357sub invoke {
316 local $term = shift; 358 local $TERM = shift;
317 my $htype = shift; 359 my $htype = shift;
318 360
319 if ($htype == 0) { # INIT 361 if ($htype == 0) { # INIT
320 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 362 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
321 363
322 for my $ext (split /:/, $term->resource ("perl_ext")) { 364 for my $ext (split /:/, $TERM->resource ("perl_ext")) {
323 my @files = grep -f $_, map "$_/$ext", @dirs; 365 my @files = grep -f $_, map "$_/$ext", @dirs;
324 366
325 if (@files) { 367 if (@files) {
326 register_package script_package $files[0]; 368 register_package script_package $files[0];
327 } else { 369 } else {
328 warn "perl extension '$ext' not found in perl library search path\n"; 370 warn "perl extension '$ext' not found in perl library search path\n";
329 } 371 }
330 } 372 }
331 373
332 } elsif ($htype == 1) { # DESTROY 374 } elsif ($htype == 1) { # DESTROY
333 if (my $hook = $term->{_hook}) { 375 if (my $hook = $TERM->{_hook}) {
334 for my $htype (0..$#$hook) { 376 for my $htype (0..$#$hook) {
335 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 377 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
336 or set_should_invoke $htype, 0; 378 or set_should_invoke $htype, 0;
337 } 379 }
338 } 380 }
339 } 381 }
340 382
341 my $cb = $term->{_hook}[$htype] 383 my $cb = $TERM->{_hook}[$htype]
342 or return; 384 or return;
343 385
344 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" 386 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
345 if $verbosity >= 10; 387 if $verbosity >= 10;
346 388
347 while (my ($k, $v) = each %$cb) { 389 while (my ($pkg, $cb) = each %$cb) {
348 return 1 if $v->($term, @_); 390 return 1
391 if $cb->(
392 $TERM->{$pkg} ||= do {
393 my $proxy = bless { }, urxvt::term::proxy::;
394 Scalar::Util::weaken ($proxy->{term} = $TERM);
395 $proxy
396 },
397 @_,
398 );
349 } 399 }
350 400
351 0 401 0
352} 402}
353 403
354=back 404sub urxvt::term::proxy::AUTOLOAD {
405 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
406 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
407
408 eval qq{
409 sub $urxvt::term::proxy::AUTOLOAD {
410 unshift \@_, shift->{term};
411 goto &urxvt::term::$1;
412 }
413 1
414 } or die "FATAL: unable to compile method forwarder: $@";
415
416 goto &$urxvt::term::proxy::AUTOLOAD;
417}
355 418
356=head2 The C<urxvt::term> Class 419=head2 The C<urxvt::term> Class
357 420
358=over 4 421=over 4
359 422
415 478
416=item $oldtext = $term->selection ([$newtext]) 479=item $oldtext = $term->selection ([$newtext])
417 480
418Return the current selection text and optionally replace it by C<$newtext>. 481Return the current selection text and optionally replace it by C<$newtext>.
419 482
420=item $term->scr_overlay ($x, $y, $text) 483#=item $term->overlay ($x, $y, $text)
421 484#
422Create a simple multi-line overlay box. See the next method for details. 485#Create a simple multi-line overlay box. See the next method for details.
423 486#
424=cut 487#=cut
425 488
426sub urxvt::term::scr_overlay { 489sub urxvt::term::scr_overlay {
490die;
427 my ($self, $x, $y, $text) = @_; 491 my ($self, $x, $y, $text) = @_;
428 492
429 my @lines = split /\n/, $text; 493 my @lines = split /\n/, $text;
430 494
431 my $w = 0; 495 my $w = 0;
435 499
436 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 500 $self->scr_overlay_new ($x, $y, $w, scalar @lines);
437 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 501 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
438} 502}
439 503
440=item $term->scr_overlay_new ($x, $y, $width, $height) 504=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
441 505
442Create a new (empty) overlay at the given position with the given 506Create a new (empty) overlay at the given position with the given
443width/height. A border will be put around the box. If either C<$x> or 507width/height. C<$rstyle> defines the initial rendition style
444C<$y> is negative, then this is counted from the right/bottom side, 508(default: C<OVERLAY_RSTYLE>).
445respectively.
446 509
447=item $term->scr_overlay_off 510If C<$border> is C<2> (default), then a decorative border will be put
511around the box.
448 512
449Switch the overlay off again. 513If either C<$x> or C<$y> is negative, then this is counted from the
514right/bottom side, respectively.
450 515
451=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE) 516This method returns an urxvt::overlay object. The overlay will be visible
517as long as the perl object is referenced.
452 518
453Put a single character (specified numerically) at the given overlay 519The methods currently supported on C<urxvt::overlay> objects are:
454position.
455 520
521=over 4
522
456=item $term->scr_overlay_set ($x, $y, $text) 523=item $overlay->set ($x, $y, $text, $rend)
457 524
458Write a string at the given position into the overlay. 525Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
526text in rxvt-unicode's special encoding and an array of rendition values
527at a specific position inside the overlay.
528
529=item $overlay->hide
530
531If visible, hide the overlay, but do not destroy it.
532
533=item $overlay->show
534
535If hidden, display the overlay again.
536
537=back
459 538
460=item $cellwidth = $term->strwidth $string 539=item $cellwidth = $term->strwidth $string
461 540
462Returns the number of screen-cells this string would need. Correctly 541Returns the number of screen-cells this string would need. Correctly
463accounts for wide and combining characters. 542accounts for wide and combining characters.
558=head2 The C<urxvt::timer> Class 637=head2 The C<urxvt::timer> Class
559 638
560This class implements timer watchers/events. Time is represented as a 639This class implements timer watchers/events. Time is represented as a
561fractional number of seconds since the epoch. Example: 640fractional number of seconds since the epoch. Example:
562 641
563 # create a digital clock display in upper right corner 642 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
564 $term->{timer} = urxvt::timer 643 $term->{timer} = urxvt::timer
565 ->new 644 ->new
566 ->start (urxvt::NOW) 645 ->interval (1)
567 ->cb (sub { 646 ->cb (sub {
568 my ($timer) = @_;
569 my $time = $timer->at;
570 $timer->start ($time + 1);
571 $self->scr_overlay (-1, 0, 647 $term->{overlay}->set (0, 0,
572 POSIX::strftime "%H:%M:%S", localtime $time); 648 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
573 }); 649 });
574 650
575=over 4 651=over 4
576 652
577=item $timer = new urxvt::timer 653=item $timer = new urxvt::timer
578 654
579Create a new timer object in stopped state. 655Create a new timer object in started state. It is scheduled to fire
656immediately.
580 657
581=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 658=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
582 659
583Set the callback to be called when the timer triggers. 660Set the callback to be called when the timer triggers.
584 661
587Return the time this watcher will fire next. 664Return the time this watcher will fire next.
588 665
589=item $timer = $timer->set ($tstamp) 666=item $timer = $timer->set ($tstamp)
590 667
591Set the time the event is generated to $tstamp. 668Set the time the event is generated to $tstamp.
669
670=item $timer = $timer->interval ($interval)
671
672Normally (and when C<$interval> is C<0>), the timer will automatically
673stop after it has fired once. If C<$interval> is non-zero, then the timer
674is automatically rescheduled at the given intervals.
592 675
593=item $timer = $timer->start 676=item $timer = $timer->start
594 677
595Start the timer. 678Start the timer.
596 679

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