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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.27 by root, Tue Jan 3 23:41:37 2006 UTC vs.
Revision 1.46 by root, Sat Jan 7 20:29:28 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
59=back 59=back
60 60
61=item digital-clock 61=item digital-clock
62 62
63Displays a digital clock using the built-in overlay. 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.
64 74
65=item example-refresh-hooks 75=item example-refresh-hooks
66 76
67Displays 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
68window. Illustrates overwriting the refresh callbacks to create your own 78window. Illustrates overwriting the refresh callbacks to create your own
81When 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
82emptied, 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
83the 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
84terminal is destroyed. 94terminal is destroyed.
85 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
86=head2 Hooks 119=head2 Hooks
87 120
88The following subroutines can be declared in loaded scripts, and will be 121The following subroutines can be declared in extension files, and will be
89called whenever the relevant event happens. 122called whenever the relevant event happens.
90 123
91The first argument passed to them is an object private to each terminal 124The first argument passed to them is an object private to each terminal
92and extension package. You can call all C<urxvt::term> methods on it, but 125and extension package. You can call all C<urxvt::term> methods on it, but
93its not a real C<urxvt::term> object. Instead, the real C<urxvt::term> 126its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
94object that is shared between all packages is stored in the C<term> 127object that is shared between all packages is stored in the C<term>
95member. 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.
96 130
97All 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
98counts 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,
99and 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.
100 134
103=over 4 137=over 4
104 138
105=item on_init $term 139=item on_init $term
106 140
107Called after a new terminal object has been initialized, but before 141Called after a new terminal object has been initialized, but before
108windows 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.
109 146
110=item on_reset $term 147=item on_reset $term
111 148
112Called 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
113control 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
142should extend the selection itelf and return true to suppress the built-in 179should extend the selection itelf and return true to suppress the built-in
143processing. 180processing.
144 181
145See the F<selection> example extension. 182See the F<selection> example extension.
146 183
147=item on_focus_in $term
148
149Called whenever the window gets the keyboard focus, before urxvt does
150focus in processing.
151
152=item on_focus_out $term
153
154Called wheneever the window loses keyboard focus, before urxvt does focus
155out processing.
156
157=item on_view_change $term, $offset 184=item on_view_change $term, $offset
158 185
159Called whenever the view offset changes, i..e the user or program 186Called whenever the view offset changes, i..e the user or program
160scrolls. Offset C<0> means display the normal terminal, positive values 187scrolls. Offset C<0> means display the normal terminal, positive values
161show this many lines of scrollback. 188show this many lines of scrollback.
171number of lines that will be in the scrollback buffer. 198number of lines that will be in the scrollback buffer.
172 199
173=item on_tty_activity $term *NYI* 200=item on_tty_activity $term *NYI*
174 201
175Called 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.
176 238
177=item on_refresh_begin $term 239=item on_refresh_begin $term
178 240
179Called just before the screen gets redrawn. Can be used for overlay 241Called just before the screen gets redrawn. Can be used for overlay
180or similar effects by modify terminal contents in refresh_begin, and 242or similar effects by modify terminal contents in refresh_begin, and
189 251
190Called whenever the user presses a key combination that has a 252Called whenever the user presses a key combination that has a
191C<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>
192resource in the @@RXVT_NAME@@(1) manpage). 254resource in the @@RXVT_NAME@@(1) manpage).
193 255
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
194=back 292=back
195 293
196=head2 Variables in the C<urxvt> Package 294=head2 Variables in the C<urxvt> Package
197 295
198=over 4 296=over 4
199 297
200=item $urxvt::TERM 298=item $urxvt::TERM
201 299
202The current terminal. Whenever a callback/Hook is bein executed, this 300The current terminal. This variable stores the current C<urxvt::term>
203variable stores the current C<urxvt::term> object. 301object, whenever a callback/hook is executing.
204 302
205=back 303=back
206 304
207=head2 Functions in the C<urxvt> Package 305=head2 Functions in the C<urxvt> Package
208 306
209=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.
210 316
211=item urxvt::fatal $errormessage 317=item urxvt::fatal $errormessage
212 318
213Fatally aborts execution with the given error message. Avoid at all 319Fatally aborts execution with the given error message. Avoid at all
214costs! The only time this is acceptable is when the terminal process 320costs! The only time this is acceptable is when the terminal process
327 $hook_count[$htype]++ 433 $hook_count[$htype]++
328 or set_should_invoke $htype, 1; 434 or set_should_invoke $htype, 1;
329 } 435 }
330} 436}
331 437
332my $script_pkg = "script0000"; 438my $extension_pkg = "extension0000";
333my %script_pkg; 439my %extension_pkg;
334 440
335# load a single script into its own package, once only 441# load a single script into its own package, once only
336sub script_package($) { 442sub extension_package($) {
337 my ($path) = @_; 443 my ($path) = @_;
338 444
339 $script_pkg{$path} ||= do { 445 $extension_pkg{$path} ||= do {
340 my $pkg = "urxvt::" . ($script_pkg++); 446 my $pkg = "urxvt::" . ($extension_pkg++);
341 447
342 verbose 3, "loading script '$path' into package '$pkg'"; 448 verbose 3, "loading extension '$path' into package '$pkg'";
343 449
344 open my $fh, "<:raw", $path 450 open my $fh, "<:raw", $path
345 or die "$path: $!"; 451 or die "$path: $!";
346 452
347 my $source = "package $pkg; use strict; use utf8;\n" 453 my $source = "package $pkg; use strict; use utf8;\n"
454 . "use base urxvt::term::proxy::;\n"
348 . "#line 1 \"$path\"\n{\n" 455 . "#line 1 \"$path\"\n{\n"
349 . (do { local $/; <$fh> }) 456 . (do { local $/; <$fh> })
350 . "\n};\n1"; 457 . "\n};\n1";
351 458
352 eval $source or die "$path: $@"; 459 eval $source or die "$path: $@";
353 460
354 $pkg 461 $pkg
355 } 462 }
356} 463}
464
465our $retval; # return value for urxvt
357 466
358# called by the rxvt core 467# called by the rxvt core
359sub invoke { 468sub invoke {
360 local $TERM = shift; 469 local $TERM = shift;
361 my $htype = shift; 470 my $htype = shift;
362 471
363 if ($htype == 0) { # INIT 472 if ($htype == 0) { # INIT
364 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 473 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
365 474
366 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 475 for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
367 my @files = grep -f $_, map "$_/$ext", @dirs; 476 my @files = grep -f $_, map "$_/$ext", @dirs;
368 477
369 if (@files) { 478 if (@files) {
370 register_package script_package $files[0]; 479 register_package extension_package $files[0];
371 } else { 480 } else {
372 warn "perl extension '$ext' not found in perl library search path\n"; 481 warn "perl extension '$ext' not found in perl library search path\n";
373 } 482 }
374 } 483 }
484 }
375 485
486 $retval = undef;
487
488 if (my $cb = $TERM->{_hook}[$htype]) {
489 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
490 if $verbosity >= 10;
491
492 keys %$cb;
493
494 while (my ($pkg, $cb) = each %$cb) {
495 eval {
496 $retval = $cb->(
497 $TERM->{_pkg}{$pkg} ||= do {
498 my $proxy = bless { }, $pkg;
499 Scalar::Util::weaken ($proxy->{term} = $TERM);
500 $proxy
501 },
502 @_,
503 ) and last;
504 };
505 warn $@ if $@;#d#
506 }
507 }
508
376 } elsif ($htype == 1) { # DESTROY 509 if ($htype == 1) { # DESTROY
510 # remove hooks if unused
377 if (my $hook = $TERM->{_hook}) { 511 if (my $hook = $TERM->{_hook}) {
378 for my $htype (0..$#$hook) { 512 for my $htype (0..$#$hook) {
379 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 513 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
380 or set_should_invoke $htype, 0; 514 or set_should_invoke $htype, 0;
381 } 515 }
382 } 516 }
517
518 # clear package objects
519 %$_ = () for values %{ $TERM->{_pkg} };
520
521 # clear package
522 %$TERM = ();
383 } 523 }
384 524
385 my $cb = $TERM->{_hook}[$htype] 525 $retval
386 or return;
387
388 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
389 if $verbosity >= 10;
390
391 keys %$cb;
392
393 while (my ($pkg, $cb) = each %$cb) {
394 return 1
395 if $cb->(
396 $TERM->{$pkg} ||= do {
397 my $proxy = bless { }, urxvt::term::proxy::;
398 Scalar::Util::weaken ($proxy->{term} = $TERM);
399 $proxy
400 },
401 @_,
402 );
403 }
404
405 0
406} 526}
407 527
408sub urxvt::term::proxy::AUTOLOAD { 528sub urxvt::term::proxy::AUTOLOAD {
409 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 529 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
410 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 530 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
418 } or die "FATAL: unable to compile method forwarder: $@"; 538 } or die "FATAL: unable to compile method forwarder: $@";
419 539
420 goto &$urxvt::term::proxy::AUTOLOAD; 540 goto &$urxvt::term::proxy::AUTOLOAD;
421} 541}
422 542
543sub urxvt::destroy_hook::DESTROY {
544 ${$_[0]}->();
545}
546
547sub urxvt::destroy_hook(&) {
548 bless \shift, urxvt::destroy_hook::
549}
550
423=head2 The C<urxvt::term> Class 551=head2 The C<urxvt::term> Class
424 552
425=over 4 553=over 4
554
555=item $term->destroy
556
557Destroy the terminal object (close the window, free resources etc.).
426 558
427=item $value = $term->resource ($name[, $newval]) 559=item $value = $term->resource ($name[, $newval])
428 560
429Returns the current resource value associated with a given name and 561Returns the current resource value associated with a given name and
430optionally sets a new value. Setting values is most useful in the C<init> 562optionally sets a new value. Setting values is most useful in the C<init>
448 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 580 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
449 borderLess color cursorBlink cursorUnderline cutchars delete_key 581 borderLess color cursorBlink cursorUnderline cutchars delete_key
450 display_name embed ext_bwidth fade font geometry hold iconName 582 display_name embed ext_bwidth fade font geometry hold iconName
451 imFont imLocale inputMethod insecure int_bwidth intensityStyles 583 imFont imLocale inputMethod insecure int_bwidth intensityStyles
452 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 584 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
453 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 585 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
454 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 586 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
455 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 587 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
456 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 588 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
457 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 589 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
458 shade term_name title transparent transparent_all tripleclickwords 590 shade term_name title transparent transparent_all tripleclickwords
461=cut 593=cut
462 594
463sub urxvt::term::resource($$;$) { 595sub urxvt::term::resource($$;$) {
464 my ($self, $name) = (shift, shift); 596 my ($self, $name) = (shift, shift);
465 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 597 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
466 goto &urxvt::term::_resource; 598 &urxvt::term::_resource
467} 599}
600
601=item $rend = $term->rstyle ([$new_rstyle])
602
603Return and optionally change the current rendition. Text that is output by
604the terminal application will use this style.
605
606=item ($row, $col) = $term->screen_cur ([$row, $col])
607
608Return the current coordinates of the text cursor position and optionally
609set it (which is usually bad as applications don't expect that).
468 610
469=item ($row, $col) = $term->selection_mark ([$row, $col]) 611=item ($row, $col) = $term->selection_mark ([$row, $col])
470 612
471=item ($row, $col) = $term->selection_beg ([$row, $col]) 613=item ($row, $col) = $term->selection_beg ([$row, $col])
472 614
487#=item $term->overlay ($x, $y, $text) 629#=item $term->overlay ($x, $y, $text)
488# 630#
489#Create a simple multi-line overlay box. See the next method for details. 631#Create a simple multi-line overlay box. See the next method for details.
490# 632#
491#=cut 633#=cut
492 634#
493sub urxvt::term::scr_overlay { 635#sub urxvt::term::scr_overlay {
494die;
495 my ($self, $x, $y, $text) = @_; 636# my ($self, $x, $y, $text) = @_;
496 637#
497 my @lines = split /\n/, $text; 638# my @lines = split /\n/, $text;
498 639#
499 my $w = 0; 640# my $w = 0;
500 for (map $self->strwidth ($_), @lines) { 641# for (map $self->strwidth ($_), @lines) {
501 $w = $_ if $w < $_; 642# $w = $_ if $w < $_;
502 } 643# }
503 644#
504 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 645# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
505 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 646# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
506} 647#}
507 648
508=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 649=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
509 650
510Create a new (empty) overlay at the given position with the given 651Create a new (empty) overlay at the given position with the given
511width/height. C<$rstyle> defines the initial rendition style 652width/height. C<$rstyle> defines the initial rendition style
538 679
539If hidden, display the overlay again. 680If hidden, display the overlay again.
540 681
541=back 682=back
542 683
684=item $popup = $term->popup ($event)
685
686Creates a new C<urxvt::popup> object that implements a popup menu. The
687C<$event> I<must> be the event causing the menu to pop up (a button event,
688currently).
689
690=cut
691
692sub urxvt::term::popup {
693 my ($self, $event) = @_;
694
695 $self->grab ($event->{time}, 1)
696 or return;
697
698 my $popup = bless {
699 term => $self,
700 event => $event,
701 }, urxvt::popup::;
702
703 Scalar::Util::weaken $popup->{term};
704
705 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
706 Scalar::Util::weaken $self->{_destroy}{$popup};
707
708 $popup
709}
710
543=item $cellwidth = $term->strwidth $string 711=item $cellwidth = $term->strwidth ($string)
544 712
545Returns the number of screen-cells this string would need. Correctly 713Returns the number of screen-cells this string would need. Correctly
546accounts for wide and combining characters. 714accounts for wide and combining characters.
547 715
548=item $octets = $term->locale_encode $string 716=item $octets = $term->locale_encode ($string)
549 717
550Convert the given text string into the corresponding locale encoding. 718Convert the given text string into the corresponding locale encoding.
551 719
552=item $string = $term->locale_decode $octets 720=item $string = $term->locale_decode ($octets)
553 721
554Convert the given locale-encoded octets into a perl string. 722Convert the given locale-encoded octets into a perl string.
723
724=item $term->scr_add_lines ($string)
725
726Write the given text string to the screen, as if output by the application
727running inside the terminal. It may not contain command sequences (escape
728codes), but is free to use line feeds, carriage returns and tabs. The
729string is a normal text string, not in locale-dependent encoding.
730
731Normally its not a good idea to use this function, as programs might be
732confused by changes in cursor position or scrolling. Its useful inside a
733C<on_add_lines> hook, though.
734
735=item $term->cmd_parse ($octets)
736
737Similar to C<scr_add_lines>, but the argument must be in the
738locale-specific encoding of the terminal and can contain command sequences
739(escape codes) that will be interpreted.
555 740
556=item $term->tt_write ($octets) 741=item $term->tt_write ($octets)
557 742
558Write the octets given in C<$data> to the tty (i.e. as program input). To 743Write the octets given in C<$data> to the tty (i.e. as program input). To
559pass characters instead of octets, you should convert your strings first 744pass characters instead of octets, you should convert your strings first
560to the locale-specific encoding using C<< $term->locale_encode >>. 745to the locale-specific encoding using C<< $term->locale_encode >>.
561 746
747=item $windowid = $term->parent
748
749Return the window id of the toplevel window.
750
751=item $windowid = $term->vt
752
753Return the window id of the terminal window.
754
755=item $window_width = $term->width
756
757=item $window_height = $term->height
758
759=item $font_width = $term->fwidth
760
761=item $font_height = $term->fheight
762
763=item $font_ascent = $term->fbase
764
562=item $nrow = $term->nrow 765=item $terminal_rows = $term->nrow
563 766
564=item $ncol = $term->ncol 767=item $terminal_columns = $term->ncol
565 768
566Return the number of rows/columns of the terminal window (i.e. as 769=item $has_focus = $term->focus
567specified by C<-geometry>, excluding any scrollback).
568 770
569=item $nsaved = $term->nsaved 771=item $is_mapped = $term->mapped
570 772
571Returns the number of lines in the scrollback buffer. 773=item $max_scrollback = $term->saveLines
774
775=item $nrow_plus_saveLines = $term->total_rows
776
777=item $lines_in_scrollback = $term->nsaved
778
779Return various integers describing terminal characteristics.
572 780
573=item $view_start = $term->view_start ([$newvalue]) 781=item $view_start = $term->view_start ([$newvalue])
574 782
575Returns the negative row number of the topmost line. Minimum value is 783Returns the negative row number of the topmost line. Minimum value is
576C<0>, which displays the normal terminal contents. Larger values scroll 784C<0>, which displays the normal terminal contents. Larger values scroll
639about the logical line that row C<$row_number> is part of. It supports the 847about the logical line that row C<$row_number> is part of. It supports the
640following methods: 848following methods:
641 849
642=over 4 850=over 4
643 851
644=item $text = $line->t 852=item $text = $line->t ([$new_text])
645 853
646Returns the full text of the line, similar to C<ROW_t> 854Returns or replaces the full text of the line, similar to C<ROW_t>
647 855
648=item $rend = $line->r 856=item $rend = $line->r ([$new_rend])
649 857
650Returns the full rendition array of the line, similar to C<ROW_r> 858Returns or replaces the full rendition array of the line, similar to C<ROW_r>
651 859
652=item $length = $line->l 860=item $length = $line->l
653 861
654Returns the length of the line in cells, similar to C<ROW_l>. 862Returns the length of the line in cells, similar to C<ROW_l>.
655 863
684 892
685 bless { 893 bless {
686 term => $self, 894 term => $self,
687 beg => $beg, 895 beg => $beg,
688 end => $end, 896 end => $end,
897 ncol => $self->ncol,
689 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 898 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
690 }, urxvt::line:: 899 }, urxvt::line::
691} 900}
692 901
693sub urxvt::line::t { 902sub urxvt::line::t {
694 my ($self) = @_; 903 my ($self) = @_;
695 904
905 if (@_ > 1)
906 {
907 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
908 for $self->{beg} .. $self->{end};
909 }
910
911 defined wantarray &&
696 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 912 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
697 0, $self->{len} 913 0, $self->{len}
698} 914}
699 915
700sub urxvt::line::r { 916sub urxvt::line::r {
701 my ($self) = @_; 917 my ($self) = @_;
702 918
919 if (@_ > 1)
920 {
921 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
922 for $self->{beg} .. $self->{end};
923 }
924
925 if (defined wantarray) {
703 my $rend = [ 926 my $rend = [
704 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 927 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
705 ]; 928 ];
706 $#$rend = $self->{len} - 1; 929 $#$rend = $self->{len} - 1;
707 $rend 930 return $rend;
931 }
932
933 ()
708} 934}
709 935
710sub urxvt::line::beg { $_[0]{beg} } 936sub urxvt::line::beg { $_[0]{beg} }
711sub urxvt::line::end { $_[0]{end} } 937sub urxvt::line::end { $_[0]{end} }
712sub urxvt::line::l { $_[0]{len} } 938sub urxvt::line::l { $_[0]{len} }
713 939
714sub urxvt::line::offset_of { 940sub urxvt::line::offset_of {
715 my ($self, $row, $col) = @_; 941 my ($self, $row, $col) = @_;
716 942
717 ($row - $self->{beg}) * $self->{term}->ncol + $col 943 ($row - $self->{beg}) * $self->{ncol} + $col
718} 944}
719 945
720sub urxvt::line::coord_of { 946sub urxvt::line::coord_of {
721 my ($self, $offset) = @_; 947 my ($self, $offset) = @_;
722 948
723 use integer; 949 use integer;
724 950
725 ( 951 (
726 $offset / $self->{term}->ncol + $self->{beg}, 952 $offset / $self->{ncol} + $self->{beg},
727 $offset % $self->{term}->ncol 953 $offset % $self->{ncol}
728 ) 954 )
729} 955}
730 956
731=item ($row, $col) = $line->coord_of ($offset) 957=item ($row, $col) = $line->coord_of ($offset)
732=item $text = $term->special_encode $string 958=item $text = $term->special_encode $string
739 965
740Converts rxvt-unicodes text reprsentation into a perl string. See 966Converts rxvt-unicodes text reprsentation into a perl string. See
741C<< $term->ROW_t >> for details. 967C<< $term->ROW_t >> for details.
742 968
743=back 969=back
970
971=head2 The C<urxvt::popup> Class
972
973=over 4
974
975=cut
976
977package urxvt::popup;
978
979sub add_item {
980 my ($self, $item) = @_;
981
982 push @{ $self->{item} }, $item;
983}
984
985sub add_button {
986 my ($self, $text, $cb) = @_;
987
988 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb });
989}
990
991sub show {
992 my ($self) = @_;
993
994 local $urxvt::popup::self = $self;
995
996 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
997 "--transient-for" => $self->{term}->parent,
998 "-pe" => "urxvt-popup")
999 or die "unable to create popup window\n";
1000}
1001
1002sub DESTROY {
1003 my ($self) = @_;
1004
1005 $self->{term}->ungrab;
1006}
744 1007
745=head2 The C<urxvt::timer> Class 1008=head2 The C<urxvt::timer> Class
746 1009
747This class implements timer watchers/events. Time is represented as a 1010This class implements timer watchers/events. Time is represented as a
748fractional number of seconds since the epoch. Example: 1011fractional number of seconds since the epoch. Example:

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