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Revision 1.36 by root, Fri Jan 6 02:58:02 2006 UTC vs.
Revision 1.205 by root, Tue Jun 5 19:32:29 2012 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 22Every time 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
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 31You can disable the embedded perl interpreter by setting both "perl-ext"
32and "perl-ext-common" resources to the empty string.
32 33
34=head1 PREPACKAGED EXTENSIONS
35
33This section describes the extensiosn delivered with this version. You can 36This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 37find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 38
36You can activate them like this: 39You can activate them like this:
37 40
38 @@RXVT_NAME@@ -pe <extensionname> 41 @@RXVT_NAME@@ -pe <extensionname>
39 42
43Or by adding them to the resource for extensions loaded by default:
44
45 URxvt.perl-ext-common: default,selection-autotransform
46
40=over 4 47=over 4
41 48
42=item selection 49=item selection (enabled by default)
43 50
44Intelligent selection. This extension tries to be more intelligent when 51(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 52when the user extends selections (double-click and further clicks). Right
46urls and complete shell-quoted arguments, which is very convenient, too, 53now, it tries to select words, urls and complete shell-quoted
47if your F<ls> supports C<--quoting-style=shell>. 54arguments, which is very convenient, too, if your F<ls> supports
55C<--quoting-style=shell>.
48 56
49It also offers the following bindable event: 57A double-click usually selects the word under the cursor, further clicks
58will enlarge the selection.
59
60The selection works by trying to match a number of regexes and displaying
61them in increasing order of length. You can add your own regexes by
62specifying resources of the form:
63
64 URxvt.selection.pattern-0: perl-regex
65 URxvt.selection.pattern-1: perl-regex
66 ...
67
68The index number (0, 1...) must not have any holes, and each regex must
69contain at least one pair of capturing parentheses, which will be used for
70the match. For example, the following adds a regex that matches everything
71between two vertical bars:
72
73 URxvt.selection.pattern-0: \\|([^|]+)\\|
74
75Another example: Programs I use often output "absolute path: " at the
76beginning of a line when they process multiple files. The following
77pattern matches the filename (note, there is a single space at the very
78end):
79
80 URxvt.selection.pattern-0: ^(/[^:]+):\
81
82You can look at the source of the selection extension to see more
83interesting uses, such as parsing a line from beginning to end.
84
85This extension also offers following bindable keyboard commands:
50 86
51=over 4 87=over 4
52 88
53=item rot13 89=item rot13
54 90
56 92
57 URxvt.keysym.C-M-r: perl:selection:rot13 93 URxvt.keysym.C-M-r: perl:selection:rot13
58 94
59=back 95=back
60 96
97=item option-popup (enabled by default)
98
99Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
100runtime.
101
102Other extensions can extend this popup menu by pushing a code reference
103onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
104popup is being displayed.
105
106Its sole argument is the popup menu, which can be modified. It should
107either return nothing or a string, the initial boolean value and a code
108reference. The string will be used as button text and the code reference
109will be called when the toggle changes, with the new boolean value as
110first argument.
111
112The following will add an entry C<myoption> that changes
113C<< $self->{myoption} >>:
114
115 push @{ $self->{term}{option_popup_hook} }, sub {
116 ("my option" => $myoption, sub { $self->{myoption} = $_[0] })
117 };
118
119=item selection-popup (enabled by default)
120
121Binds a popup menu to Ctrl-Button3 that lets you convert the selection
122text into various other formats/action (such as uri unescaping, perl
123evaluation, web-browser starting etc.), depending on content.
124
125Other extensions can extend this popup menu by pushing a code reference
126onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
127popup is being displayed.
128
129Its sole argument is the popup menu, which can be modified. The selection
130is in C<$_>, which can be used to decide whether to add something or not.
131It should either return nothing or a string and a code reference. The
132string will be used as button text and the code reference will be called
133when the button gets activated and should transform C<$_>.
134
135The following will add an entry C<a to b> that transforms all C<a>s in
136the selection to C<b>s, but only if the selection currently contains any
137C<a>s:
138
139 push @{ $self->{term}{selection_popup_hook} }, sub {
140 /a/ ? ("a to b" => sub { s/a/b/g }
141 : ()
142 };
143
144=item searchable-scrollback<hotkey> (enabled by default)
145
146Adds regex search functionality to the scrollback buffer, triggered
147by a hotkey (default: C<M-s>). While in search mode, normal terminal
148input/output is suspended and a regex is displayed at the bottom of the
149screen.
150
151Inputting characters appends them to the regex and continues incremental
152search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
153search upwards/downwards in the scrollback buffer, C<End> jumps to the
154bottom. C<Escape> leaves search mode and returns to the point where search
155was started, while C<Enter> or C<Return> stay at the current position and
156additionally stores the first match in the current line into the primary
157selection if the C<Shift> modifier is active.
158
159The regex defaults to "(?i)", resulting in a case-insensitive search. To
160get a case-sensitive search you can delete this prefix using C<BackSpace>
161or simply use an uppercase character which removes the "(?i)" prefix.
162
163See L<perlre> for more info about perl regular expression syntax.
164
165=item readline (enabled by default)
166
167A support package that tries to make editing with readline easier. At
168the moment, it reacts to clicking shift-left mouse button by trying to
169move the text cursor to this position. It does so by generating as many
170cursor-left or cursor-right keypresses as required (this only works
171for programs that correctly support wide characters).
172
173To avoid too many false positives, this is only done when:
174
175=over 4
176
177=item - the tty is in ICANON state.
178
179=item - the text cursor is visible.
180
181=item - the primary screen is currently being displayed.
182
183=item - the mouse is on the same (multi-row-) line as the text cursor.
184
185=back
186
187The normal selection mechanism isn't disabled, so quick successive clicks
188might interfere with selection creation in harmless ways.
189
190=item selection-autotransform
191
192This selection allows you to do automatic transforms on a selection
193whenever a selection is made.
194
195It works by specifying perl snippets (most useful is a single C<s///>
196operator) that modify C<$_> as resources:
197
198 URxvt.selection-autotransform.0: transform
199 URxvt.selection-autotransform.1: transform
200 ...
201
202For example, the following will transform selections of the form
203C<filename:number>, often seen in compiler messages, into C<vi +$filename
204$word>:
205
206 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
207
208And this example matches the same,but replaces it with vi-commands you can
209paste directly into your (vi :) editor:
210
211 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
212
213Of course, this can be modified to suit your needs and your editor :)
214
215To expand the example above to typical perl error messages ("XXX at
216FILENAME line YYY."), you need a slightly more elaborate solution:
217
218 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
219 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
220
221The first line tells the selection code to treat the unchanging part of
222every error message as a selection pattern, and the second line transforms
223the message into vi commands to load the file.
224
225=item tabbed
226
227This transforms the terminal into a tabbar with additional terminals, that
228is, it implements what is commonly referred to as "tabbed terminal". The topmost line
229displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
230button per tab.
231
232Clicking a button will activate that tab. Pressing B<Shift-Left> and
233B<Shift-Right> will switch to the tab left or right of the current one,
234while B<Shift-Down> creates a new tab.
235
236The tabbar itself can be configured similarly to a normal terminal, but
237with a resource class of C<URxvt.tabbed>. In addition, it supports the
238following four resources (shown with defaults):
239
240 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
241 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
242 URxvt.tabbed.tab-fg: <colour-index, default 0>
243 URxvt.tabbed.tab-bg: <colour-index, default 1>
244
245See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
246indices.
247
248=item matcher
249
250Uses per-line display filtering (C<on_line_update>) to underline text
251matching a certain pattern and make it clickable. When clicked with the
252mouse button specified in the C<matcher.button> resource (default 2, or
253middle), the program specified in the C<matcher.launcher> resource
254(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
255with the matched text as first argument. The default configuration is
256suitable for matching URLs and launching a web browser, like the
257former "mark-urls" extension.
258
259The default pattern to match URLs can be overridden with the
260C<matcher.pattern.0> resource, and additional patterns can be specified
261with numbered patterns, in a manner similar to the "selection" extension.
262The launcher can also be overridden on a per-pattern basis.
263
264It is possible to activate the most recently seen match or a list of matches
265from the keyboard. Simply bind a keysym to "perl:matcher:last" or
266"perl:matcher:list" as seen in the example below.
267
268Example configuration:
269
270 URxvt.perl-ext: default,matcher
271 URxvt.urlLauncher: sensible-browser
272 URxvt.keysym.C-Delete: perl:matcher:last
273 URxvt.keysym.M-Delete: perl:matcher:list
274 URxvt.matcher.button: 1
275 URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
276 URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
277 URxvt.matcher.launcher.2: gvim +$2 $1
278
279=item xim-onthespot
280
281This (experimental) perl extension implements OnTheSpot editing. It does
282not work perfectly, and some input methods don't seem to work well with
283OnTheSpot editing in general, but it seems to work at least for SCIM and
284kinput2.
285
286You enable it by specifying this extension and a preedit style of
287C<OnTheSpot>, i.e.:
288
289 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
290
291=item kuake<hotkey>
292
293A very primitive quake-console-like extension. It was inspired by a
294description of how the programs C<kuake> and C<yakuake> work: Whenever the
295user presses a global accelerator key (by default C<F10>), the terminal
296will show or hide itself. Another press of the accelerator key will hide
297or show it again.
298
299Initially, the window will not be shown when using this extension.
300
301This is useful if you need a single terminal that is not using any desktop
302space most of the time but is quickly available at the press of a key.
303
304The accelerator key is grabbed regardless of any modifiers, so this
305extension will actually grab a physical key just for this function.
306
307If you want a quake-like animation, tell your window manager to do so
308(fvwm can do it).
309
310=item overlay-osc
311
312This extension implements some OSC commands to display timed popups on the
313screen - useful for status displays from within scripts. You have to read
314the sources for more info.
315
316=item block-graphics-to-ascii
317
318A not very useful example of filtering all text output to the terminal
319by replacing all line-drawing characters (U+2500 .. U+259F) by a
320similar-looking ascii character.
321
61=item digital-clock 322=item digital-clock
62 323
63Displays a digital clock using the built-in overlay. 324Displays a digital clock using the built-in overlay.
64 325
65=item mark-urls 326=item remote-clipboard
66 327
67Uses per-line filtering (C<on_line_update>) to underline urls. 328Somewhat of a misnomer, this extension adds two menu entries to the
329selection popup that allows one to run external commands to store the
330selection somewhere and fetch it again.
331
332We use it to implement a "distributed selection mechanism", which just
333means that one command uploads the file to a remote server, and another
334reads it.
335
336The commands can be set using the C<URxvt.remote-selection.store> and
337C<URxvt.remote-selection.fetch> resources. The first should read the
338selection to store from STDIN (always in UTF-8), the second should provide
339the selection data on STDOUT (also in UTF-8).
340
341The defaults (which are likely useless to you) use rsh and cat:
342
343 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
344 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
345
346=item selection-pastebin
347
348This is a little rarely useful extension that uploads the selection as
349textfile to a remote site (or does other things). (The implementation is
350not currently secure for use in a multiuser environment as it writes to
351F</tmp> directly.).
352
353It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
354i.e.
355
356 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
357
358Pressing this combination runs a command with C<%> replaced by the name of
359the textfile. This command can be set via a resource:
360
361 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
362
363And the default is likely not useful to anybody but the few people around
364here :)
365
366The name of the textfile is the hex encoded md5 sum of the selection, so
367the same content should lead to the same filename.
368
369After a successful upload the selection will be replaced by the text given
370in the C<selection-pastebin-url> resource (again, the % is the placeholder
371for the filename):
372
373 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
374
375I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
376the double C</> characters as comment start. Use C<\057\057> instead,
377which works regardless of whether xrdb is used to parse the resource file
378or not.
379
380=item macosx-clipboard and macosx-clipboard-native
381
382These two modules implement an extended clipboard for Mac OS X. They are
383used like this:
384
385 URxvt.perl-ext-common: default,macosx-clipboard
386 URxvt.keysym.M-c: perl:macosx-clipboard:copy
387 URxvt.keysym.M-v: perl:macosx-clipboard:paste
388
389The difference between them is that the native variant requires a
390perl from apple's devkit or so, and C<macosx-clipboard> requires the
391C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
392simpler etc. etc.
68 393
69=item example-refresh-hooks 394=item example-refresh-hooks
70 395
71Displays a very simple digital clock in the upper right corner of the 396Displays a very simple digital clock in the upper right corner of the
72window. Illustrates overwriting the refresh callbacks to create your own 397window. Illustrates overwriting the refresh callbacks to create your own
73overlays or changes. 398overlays or changes.
74 399
75=item example-filter-input 400=item confirm-paste
76 401
77A not very useful example of filtering all text output to the terminal, by 402Displays a confirmation dialog when a paste containing at least a full
78underlining all urls that matches a certain regex (i.e. some urls :). It 403line is detected.
79is not very useful because urls that are output in multiple steps (e.g. 404
80when typing them) do not get marked. 405=item bell-command
406
407Runs the command specified by the C<URxvt.bell-command> resource when
408a bell event occurs. For example, the following pops up a notification
409bubble with the text "Beep, Beep" using notify-send:
410
411 URxvt.bell-command: notify-send "Beep, Beep"
81 412
82=back 413=back
414
415=head1 API DOCUMENTATION
83 416
84=head2 General API Considerations 417=head2 General API Considerations
85 418
86All objects (such as terminals, time watchers etc.) are typical 419All objects (such as terminals, time watchers etc.) are typical
87reference-to-hash objects. The hash can be used to store anything you 420reference-to-hash objects. The hash can be used to store anything you
99 432
100=over 4 433=over 4
101 434
102=item $text 435=item $text
103 436
104Rxvt-unicodes special way of encoding text, where one "unicode" character 437Rxvt-unicode's special way of encoding text, where one "unicode" character
105always represents one screen cell. See L<row_t> for a discussion of this format. 438always represents one screen cell. See L<ROW_t> for a discussion of this format.
106 439
107=item $string 440=item $string
108 441
109A perl text string, with an emphasis on I<text>. It can store all unicode 442A perl text string, with an emphasis on I<text>. It can store all unicode
110characters and is to be distinguished with text encoded in a specific 443characters and is to be distinguished with text encoded in a specific
113=item $octets 446=item $octets
114 447
115Either binary data or - more common - a text string encoded in a 448Either binary data or - more common - a text string encoded in a
116locale-specific way. 449locale-specific way.
117 450
451=item $keysym
452
453an integer that is a valid X11 keysym code. You can convert a string
454into a keysym and viceversa by using C<XStringToKeysym> and
455C<XKeysymToString>.
456
118=back 457=back
119 458
459=head2 Extension Objects
460
461Every perl extension is a perl class. A separate perl object is created
462for each terminal, and each terminal has its own set of extension objects,
463which are passed as the first parameter to hooks. So extensions can use
464their C<$self> object without having to think about clashes with other
465extensions or other terminals, with the exception of methods and members
466that begin with an underscore character C<_>: these are reserved for
467internal use.
468
469Although it isn't a C<urxvt::term> object, you can call all methods of the
470C<urxvt::term> class on this object.
471
472It has the following methods and data members:
473
474=over 4
475
476=item $urxvt_term = $self->{term}
477
478Returns the C<urxvt::term> object associated with this instance of the
479extension. This member I<must not> be changed in any way.
480
481=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
482
483Dynamically enable the given hooks (named without the C<on_> prefix) for
484this extension, replacing any previous hook. This is useful when you want
485to overwrite time-critical hooks only temporarily.
486
487=item $self->disable ($hook_name[, $hook_name..])
488
489Dynamically disable the given hooks.
490
491=back
492
120=head2 Hooks 493=head2 Hooks
121 494
122The following subroutines can be declared in loaded scripts, and will be 495The following subroutines can be declared in extension files, and will be
123called whenever the relevant event happens. 496called whenever the relevant event happens.
124 497
125The first argument passed to them is an object private to each terminal 498The first argument passed to them is an extension object as described in
126and extension package. You can call all C<urxvt::term> methods on it, but 499the in the C<Extension Objects> section.
127its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
128object that is shared between all packages is stored in the C<term>
129member.
130 500
131All of them must return a boolean value. If it is true, then the event 501B<All> of these hooks must return a boolean value. If any of the called
132counts as being I<consumed>, and the invocation of other hooks is skipped, 502hooks returns true, then the event counts as being I<consumed>, and the
133and the relevant action might not be carried out by the C++ code. 503relevant action might not be carried out by the C++ code.
134 504
135When in doubt, return a false value (preferably C<()>). 505I<< When in doubt, return a false value (preferably C<()>). >>
136 506
137=over 4 507=over 4
138 508
139=item on_init $term 509=item on_init $term
140 510
141Called after a new terminal object has been initialized, but before 511Called after a new terminal object has been initialized, but before
142windows are created or the command gets run. Most methods are unsafe to 512windows are created or the command gets run. Most methods are unsafe to
143call or deliver senseless data, as terminal size and other characteristics 513call or deliver senseless data, as terminal size and other characteristics
144have not yet been determined. You can safely query and change resources, 514have not yet been determined. You can safely query and change resources
145though. 515and options, though. For many purposes the C<on_start> hook is a better
516place.
517
518=item on_start $term
519
520Called at the very end of initialisation of a new terminal, just before
521trying to map (display) the toplevel and returning to the main loop.
522
523=item on_destroy $term
524
525Called whenever something tries to destroy terminal, when the terminal is
526still fully functional (not for long, though).
146 527
147=item on_reset $term 528=item on_reset $term
148 529
149Called after the screen is "reset" for any reason, such as resizing or 530Called after the screen is "reset" for any reason, such as resizing or
150control sequences. Here is where you can react on changes to size-related 531control sequences. Here is where you can react on changes to size-related
151variables. 532variables.
152 533
153=item on_start $term 534=item on_child_start $term, $pid
154 535
155Called at the very end of initialisation of a new terminal, just before 536Called just after the child process has been C<fork>ed.
156returning to the mainloop. 537
538=item on_child_exit $term, $status
539
540Called just after the child process has exited. C<$status> is the status
541from C<waitpid>.
157 542
158=item on_sel_make $term, $eventtime 543=item on_sel_make $term, $eventtime
159 544
160Called whenever a selection has been made by the user, but before the 545Called whenever a selection has been made by the user, but before the
161selection text is copied, so changes to the beginning, end or type of the 546selection text is copied, so changes to the beginning, end or type of the
168 553
169Called whenever a selection has been copied, but before the selection is 554Called whenever a selection has been copied, but before the selection is
170requested from the server. The selection text can be queried and changed 555requested from the server. The selection text can be queried and changed
171by calling C<< $term->selection >>. 556by calling C<< $term->selection >>.
172 557
173Returning a true value aborts selection grabbing. It will still be hilighted. 558Returning a true value aborts selection grabbing. It will still be highlighted.
174 559
175=item on_sel_extend $term 560=item on_sel_extend $term
176 561
177Called whenever the user tries to extend the selection (e.g. with a double 562Called whenever the user tries to extend the selection (e.g. with a double
178click) and is either supposed to return false (normal operation), or 563click) and is either supposed to return false (normal operation), or
179should extend the selection itelf and return true to suppress the built-in 564should extend the selection itself and return true to suppress the built-in
180processing. 565processing. This can happen multiple times, as long as the callback
566returns true, it will be called on every further click by the user and is
567supposed to enlarge the selection more and more, if possible.
181 568
182See the F<selection> example extension. 569See the F<selection> example extension.
183 570
184=item on_focus_in $term
185
186Called whenever the window gets the keyboard focus, before urxvt does
187focus in processing.
188
189=item on_focus_out $term
190
191Called wheneever the window loses keyboard focus, before urxvt does focus
192out processing.
193
194=item on_view_change $term, $offset 571=item on_view_change $term, $offset
195 572
196Called whenever the view offset changes, i..e the user or program 573Called whenever the view offset changes, i.e. the user or program
197scrolls. Offset C<0> means display the normal terminal, positive values 574scrolls. Offset C<0> means display the normal terminal, positive values
198show this many lines of scrollback. 575show this many lines of scrollback.
199 576
200=item on_scroll_back $term, $lines, $saved 577=item on_scroll_back $term, $lines, $saved
201 578
205 582
206It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 583It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 584$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208number of lines that will be in the scrollback buffer. 585number of lines that will be in the scrollback buffer.
209 586
210=item on_tty_activity $term *NYI*
211
212Called whenever the program(s) running in the urxvt window send output.
213
214=item on_osc_seq $term, $string 587=item on_osc_seq $term, $op, $args, $resp
588
589Called on every OSC sequence and can be used to suppress it or modify its
590behaviour. The default should be to return an empty list. A true value
591suppresses execution of the request completely. Make sure you don't get
592confused by recursive invocations when you output an OSC sequence within
593this callback.
594
595C<on_osc_seq_perl> should be used for new behaviour.
596
597=item on_osc_seq_perl $term, $args, $resp
215 598
216Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 599Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217operating system command) is processed. Cursor position and other state 600operating system command) is processed. Cursor position and other state
218information is up-to-date when this happens. For interoperability, the 601information is up-to-date when this happens. For interoperability, the
219string should start with the extension name and a colon, to distinguish 602string should start with the extension name (sans -osc) and a semicolon,
220it from commands for other extensions, and this might be enforced in the 603to distinguish it from commands for other extensions, and this might be
221future. 604enforced in the future.
605
606For example, C<overlay-osc> uses this:
607
608 sub on_osc_seq_perl {
609 my ($self, $osc, $resp) = @_;
610
611 return unless $osc =~ s/^overlay;//;
612
613 ... process remaining $osc string
614 }
222 615
223Be careful not ever to trust (in a security sense) the data you receive, 616Be careful not ever to trust (in a security sense) the data you receive,
224as its source can not easily be controleld (e-mail content, messages from 617as its source can not easily be controlled (e-mail content, messages from
225other users on the same system etc.). 618other users on the same system etc.).
619
620For responses, C<$resp> contains the end-of-args separator used by the
621sender.
226 622
227=item on_add_lines $term, $string 623=item on_add_lines $term, $string
228 624
229Called whenever text is about to be output, with the text as argument. You 625Called whenever text is about to be output, with the text as argument. You
230can filter/change and output the text yourself by returning a true value 626can filter/change and output the text yourself by returning a true value
231and calling C<< $term->scr_add_lines >> yourself. Please note that this 627and calling C<< $term->scr_add_lines >> yourself. Please note that this
232might be very slow, however, as your hook is called for B<all> text being 628might be very slow, however, as your hook is called for B<all> text being
233output. 629output.
234 630
631=item on_tt_write $term, $octets
632
633Called whenever some data is written to the tty/pty and can be used to
634suppress or filter tty input.
635
636=item on_tt_paste $term, $octets
637
638Called whenever text is about to be pasted, with the text as argument. You
639can filter/change and paste the text yourself by returning a true value
640and calling C<< $term->tt_paste >> yourself. C<$octets> is
641locale-encoded.
642
235=item on_line_update $term, $row 643=item on_line_update $term, $row
236 644
237Called whenever a line was updated or changed. Can be used to filter 645Called whenever a line was updated or changed. Can be used to filter
238screen output (e.g. underline urls or other useless stuff). Only lines 646screen output (e.g. underline urls or other useless stuff). Only lines
239that are being shown will be filtered, and, due to performance reasons, 647that are being shown will be filtered, and, due to performance reasons,
246later with the already-modified line (e.g. if unrelated parts change), so 654later with the already-modified line (e.g. if unrelated parts change), so
247you cannot just toggle rendition bits, but only set them. 655you cannot just toggle rendition bits, but only set them.
248 656
249=item on_refresh_begin $term 657=item on_refresh_begin $term
250 658
251Called just before the screen gets redrawn. Can be used for overlay 659Called just before the screen gets redrawn. Can be used for overlay or
252or similar effects by modify terminal contents in refresh_begin, and 660similar effects by modifying the terminal contents in refresh_begin, and
253restoring them in refresh_end. The built-in overlay and selection display 661restoring them in refresh_end. The built-in overlay and selection display
254code is run after this hook, and takes precedence. 662code is run after this hook, and takes precedence.
255 663
256=item on_refresh_end $term 664=item on_refresh_end $term
257 665
258Called just after the screen gets redrawn. See C<on_refresh_begin>. 666Called just after the screen gets redrawn. See C<on_refresh_begin>.
259 667
260=item on_keyboard_command $term, $string 668=item on_user_command $term, $string
261 669
262Called whenever the user presses a key combination that has a 670Called whenever a user-configured event is being activated (e.g. via
263C<perl:string> action bound to it (see description of the B<keysym> 671a C<perl:string> action bound to a key, see description of the B<keysym>
264resource in the @@RXVT_NAME@@(1) manpage). 672resource in the @@RXVT_NAME@@(1) manpage).
265 673
674The event is simply the action string. This interface is assumed to change
675slightly in the future.
676
677=item on_register_command $term, $keysym, $modifiermask, $string
678
679Called after parsing a keysym resource but before registering the
680associated binding. If this hook returns TRUE the binding is not
681registered. It can be used to modify a binding by calling
682C<register_command>.
683
684=item on_resize_all_windows $term, $new_width, $new_height
685
686Called just after the new window size has been calculated, but before
687windows are actually being resized or hints are being set. If this hook
688returns TRUE, setting of the window hints is being skipped.
689
690=item on_x_event $term, $event
691
692Called on every X event received on the vt window (and possibly other
693windows). Should only be used as a last resort. Most event structure
694members are not passed.
695
696=item on_root_event $term, $event
697
698Like C<on_x_event>, but is called for events on the root window.
699
700=item on_focus_in $term
701
702Called whenever the window gets the keyboard focus, before rxvt-unicode
703does focus in processing.
704
705=item on_focus_out $term
706
707Called whenever the window loses keyboard focus, before rxvt-unicode does
708focus out processing.
709
710=item on_configure_notify $term, $event
711
712=item on_property_notify $term, $event
713
714=item on_key_press $term, $event, $keysym, $octets
715
716=item on_key_release $term, $event, $keysym
717
718=item on_button_press $term, $event
719
720=item on_button_release $term, $event
721
722=item on_motion_notify $term, $event
723
724=item on_map_notify $term, $event
725
726=item on_unmap_notify $term, $event
727
728Called whenever the corresponding X event is received for the terminal. If
729the hook returns true, then the event will be ignored by rxvt-unicode.
730
731The event is a hash with most values as named by Xlib (see the XEvent
732manpage), with the additional members C<row> and C<col>, which are the
733(real, not screen-based) row and column under the mouse cursor.
734
735C<on_key_press> additionally receives the string rxvt-unicode would
736output, if any, in locale-specific encoding.
737
738subwindow.
739
740=item on_client_message $term, $event
741
742=item on_wm_protocols $term, $event
743
744=item on_wm_delete_window $term, $event
745
746Called when various types of ClientMessage events are received (all with
747format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
748
749=item on_bell $term
750
751Called on receipt of a bell character.
752
266=back 753=back
267 754
755=cut
756
757package urxvt;
758
759use utf8;
760use strict;
761use Carp ();
762use Scalar::Util ();
763use List::Util ();
764
765our $VERSION = 1;
766our $TERM;
767our @TERM_INIT;
768our @TERM_EXT;
769our @HOOKNAME;
770our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
771our %OPTION;
772
773our $LIBDIR;
774our $RESNAME;
775our $RESCLASS;
776our $RXVTNAME;
777
778our $NOCHAR = chr 0xffff;
779
268=head2 Variables in the C<urxvt> Package 780=head2 Variables in the C<urxvt> Package
269 781
270=over 4 782=over 4
271 783
784=item $urxvt::LIBDIR
785
786The rxvt-unicode library directory, where, among other things, the perl
787modules and scripts are stored.
788
789=item $urxvt::RESCLASS, $urxvt::RESCLASS
790
791The resource class and name rxvt-unicode uses to look up X resources.
792
793=item $urxvt::RXVTNAME
794
795The basename of the installed binaries, usually C<urxvt>.
796
272=item $urxvt::TERM 797=item $urxvt::TERM
273 798
274The current terminal. Whenever a callback/Hook is bein executed, this 799The current terminal. This variable stores the current C<urxvt::term>
275variable stores the current C<urxvt::term> object. 800object, whenever a callback/hook is executing.
801
802=item @urxvt::TERM_INIT
803
804All code references in this array will be called as methods of the next newly
805created C<urxvt::term> object (during the C<on_init> phase). The array
806gets cleared before the code references that were in it are being executed,
807so references can push themselves onto it again if they so desire.
808
809This complements to the perl-eval command line option, but gets executed
810first.
811
812=item @urxvt::TERM_EXT
813
814Works similar to C<@TERM_INIT>, but contains perl package/class names, which
815get registered as normal extensions after calling the hooks in C<@TERM_INIT>
816but before other extensions. Gets cleared just like C<@TERM_INIT>.
276 817
277=back 818=back
278 819
279=head2 Functions in the C<urxvt> Package 820=head2 Functions in the C<urxvt> Package
280 821
281=over 4 822=over 4
282 823
283=item $term = new urxvt [arg...]
284
285Creates a new terminal, very similar as if you had started it with
286C<system $binfile, arg...>. Croaks (and probably outputs an error message)
287if the new instance couldn't be created. Returns C<undef> if the new
288instance didn't initialise perl, and the terminal object otherwise. The
289C<init> and C<start> hooks will be called during the call.
290
291=item urxvt::fatal $errormessage 824=item urxvt::fatal $errormessage
292 825
293Fatally aborts execution with the given error message. Avoid at all 826Fatally aborts execution with the given error message (which should
294costs! The only time this is acceptable is when the terminal process 827include a trailing newline). Avoid at all costs! The only time this
295starts up. 828is acceptable (and useful) is in the init hook, where it prevents the
829terminal from starting up.
296 830
297=item urxvt::warn $string 831=item urxvt::warn $string
298 832
299Calls C<rxvt_warn> with the given string which should not include a 833Calls C<rxvt_warn> with the given string which should include a trailing
300newline. The module also overwrites the C<warn> builtin with a function 834newline. The module also overwrites the C<warn> builtin with a function
301that calls this function. 835that calls this function.
302 836
303Using this function has the advantage that its output ends up in the 837Using this function has the advantage that its output ends up in the
304correct place, e.g. on stderr of the connecting urxvtc client. 838correct place, e.g. on stderr of the connecting urxvtc client.
305 839
840Messages have a size limit of 1023 bytes currently.
841
842=item @terms = urxvt::termlist
843
844Returns all urxvt::term objects that exist in this process, regardless of
845whether they are started, being destroyed etc., so be careful. Only term
846objects that have perl extensions attached will be returned (because there
847is no urxvt::term object associated with others).
848
306=item $time = urxvt::NOW 849=item $time = urxvt::NOW
307 850
308Returns the "current time" (as per the event loop). 851Returns the "current time" (as per the event loop).
852
853=item urxvt::CurrentTime
854
855=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
856Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
857Button4Mask, Button5Mask, AnyModifier
858
859=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
860ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
861PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
862Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
863KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
864ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
865FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
866
867=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
868EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
869GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
870UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
871ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
872CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
873SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
874
875Various constants for use in X calls and event processing.
309 876
310=back 877=back
311 878
312=head2 RENDITION 879=head2 RENDITION
313 880
328 895
329=item $rend = urxvt::OVERLAY_RSTYLE 896=item $rend = urxvt::OVERLAY_RSTYLE
330 897
331Return the rendition mask used for overlays by default. 898Return the rendition mask used for overlays by default.
332 899
333=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline 900=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
901urxvt::RS_RVid, urxvt::RS_Uline
334 902
335Return the bit that enabled bold, italic, blink, reverse-video and 903Return the bit that enabled bold, italic, blink, reverse-video and
336underline, respectively. To enable such a style, just logically OR it into 904underline, respectively. To enable such a style, just logically OR it into
337the bitset. 905the bitset.
338 906
340 908
341=item $background = urxvt::GET_BASEBG $rend 909=item $background = urxvt::GET_BASEBG $rend
342 910
343Return the foreground/background colour index, respectively. 911Return the foreground/background colour index, respectively.
344 912
345=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 913=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
346 914
347=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 915=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
916
917=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
348 918
349Replace the foreground/background colour in the rendition mask with the 919Replace the foreground/background colour in the rendition mask with the
350specified one. 920specified one.
351 921
352=item $value = urxvt::GET_CUSTOM ($rend) 922=item $value = urxvt::GET_CUSTOM $rend
353 923
354Return the "custom" value: Every rendition has 5 bits for use by 924Return the "custom" value: Every rendition has 5 bits for use by
355extensions. They can be set and changed as you like and are initially 925extensions. They can be set and changed as you like and are initially
356zero. 926zero.
357 927
358=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 928=item $rend = urxvt::SET_CUSTOM $rend, $new_value
359 929
360Change the custom value. 930Change the custom value.
361 931
362=back 932=back
363 933
364=cut 934=cut
365 935
366package urxvt;
367
368use strict;
369use Scalar::Util ();
370
371our $TERM;
372our @HOOKNAME;
373our $LIBDIR;
374
375BEGIN { 936BEGIN {
376 urxvt->bootstrap;
377
378 # overwrite perl's warn 937 # overwrite perl's warn
379 *CORE::GLOBAL::warn = sub { 938 *CORE::GLOBAL::warn = sub {
380 my $msg = join "", @_; 939 my $msg = join "", @_;
381 $msg .= "\n" 940 $msg .= "\n"
382 unless $msg =~ /\n$/; 941 unless $msg =~ /\n$/;
383 urxvt::warn ($msg); 942 urxvt::warn ($msg);
384 }; 943 };
385} 944}
386 945
387my @hook_count; 946no warnings 'utf8';
947
388my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 948my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
389 949
390sub verbose { 950sub verbose {
391 my ($level, $msg) = @_; 951 my ($level, $msg) = @_;
392 warn "$msg\n" if $level <= $verbosity; 952 warn "$msg\n" if $level <= $verbosity;
393} 953}
394 954
395# find on_xxx subs in the package and register them 955my %extension_pkg;
396# as hooks
397sub register_package($) {
398 my ($pkg) = @_;
399
400 for my $htype (0.. $#HOOKNAME) {
401 my $name = $HOOKNAME[$htype];
402
403 my $ref = $pkg->can ("on_" . lc $name)
404 or next;
405
406 $TERM->{_hook}[$htype]{$pkg} = $ref;
407 $hook_count[$htype]++
408 or set_should_invoke $htype, 1;
409 }
410}
411
412my $script_pkg = "script0000";
413my %script_pkg;
414 956
415# load a single script into its own package, once only 957# load a single script into its own package, once only
416sub script_package($) { 958sub extension_package($) {
417 my ($path) = @_; 959 my ($path) = @_;
418 960
419 $script_pkg{$path} ||= do { 961 $extension_pkg{$path} ||= do {
420 my $pkg = "urxvt::" . ($script_pkg++); 962 $path =~ /([^\/\\]+)$/;
963 my $pkg = $1;
964 $pkg =~ s/[^[:word:]]/_/g;
965 $pkg = "urxvt::ext::$pkg";
421 966
422 verbose 3, "loading script '$path' into package '$pkg'"; 967 verbose 3, "loading extension '$path' into package '$pkg'";
423 968
424 open my $fh, "<:raw", $path 969 open my $fh, "<:raw", $path
425 or die "$path: $!"; 970 or die "$path: $!";
426 971
427 my $source = "package $pkg; use strict; use utf8;\n" 972 my $source =
973 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
428 . "#line 1 \"$path\"\n{\n" 974 . "#line 1 \"$path\"\n{\n"
429 . (do { local $/; <$fh> }) 975 . (do { local $/; <$fh> })
430 . "\n};\n1"; 976 . "\n};\n1";
431 977
978 eval $source
432 eval $source or die "$path: $@"; 979 or die "$path: $@";
433 980
434 $pkg 981 $pkg
435 } 982 }
436} 983}
437 984
441sub invoke { 988sub invoke {
442 local $TERM = shift; 989 local $TERM = shift;
443 my $htype = shift; 990 my $htype = shift;
444 991
445 if ($htype == 0) { # INIT 992 if ($htype == 0) { # INIT
446 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 993 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$ENV{HOME}/.urxvt/ext", "$LIBDIR/perl");
447 994
995 my %ext_arg;
996
997 {
998 my @init = @TERM_INIT;
999 @TERM_INIT = ();
1000 $_->($TERM) for @init;
1001 my @pkg = @TERM_EXT;
1002 @TERM_EXT = ();
1003 $TERM->register_package ($_) for @pkg;
1004 }
1005
448 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) { 1006 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
1007 if ($_ eq "default") {
1008 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
1009 } elsif (/^-(.*)$/) {
1010 delete $ext_arg{$1};
1011 } elsif (/^([^<]+)<(.*)>$/) {
1012 push @{ $ext_arg{$1} }, $2;
1013 } else {
1014 $ext_arg{$_} ||= [];
1015 }
1016 }
1017
1018 for my $ext (sort keys %ext_arg) {
449 my @files = grep -f $_, map "$_/$ext", @dirs; 1019 my @files = grep -f $_, map "$_/$ext", @dirs;
450 1020
451 if (@files) { 1021 if (@files) {
452 register_package script_package $files[0]; 1022 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
453 } else { 1023 } else {
454 warn "perl extension '$ext' not found in perl library search path\n"; 1024 warn "perl extension '$ext' not found in perl library search path\n";
455 } 1025 }
456 } 1026 }
1027
1028 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
1029 warn $@ if $@;
457 } 1030 }
458 1031
459 $retval = undef; 1032 $retval = undef;
460 1033
461 if (my $cb = $TERM->{_hook}[$htype]) { 1034 if (my $cb = $TERM->{_hook}[$htype]) {
462 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 1035 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
463 if $verbosity >= 10; 1036 if $verbosity >= 10;
464 1037
465 keys %$cb; 1038 for my $pkg (keys %$cb) {
1039 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
1040 $retval ||= $retval_;
466 1041
467 while (my ($pkg, $cb) = each %$cb) { 1042 if ($@) {
468 $retval = $cb->( 1043 $TERM->ungrab; # better to lose the grab than the session
469 $TERM->{_pkg}{$pkg} ||= do { 1044 warn $@;
470 my $proxy = bless { }, urxvt::term::proxy::;
471 Scalar::Util::weaken ($proxy->{term} = $TERM);
472 $proxy
473 },
474 @_,
475 ) and last;
476 }
477 }
478
479 if ($htype == 1) { # DESTROY
480 # remove hooks if unused
481 if (my $hook = $TERM->{_hook}) {
482 for my $htype (0..$#$hook) {
483 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
484 or set_should_invoke $htype, 0;
485 } 1045 }
486 } 1046 }
487 1047
1048 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
1049 if $verbosity >= 11;
1050 }
1051
1052 if ($htype == 1) { # DESTROY
488 # clear package objects 1053 # clear package objects
489 %$_ = () for values %{ $TERM->{_pkg} }; 1054 %$_ = () for values %{ $TERM->{_pkg} };
490 1055
491 # clear package 1056 # clear package
492 %$TERM = (); 1057 %$TERM = ();
493 } 1058 }
494 1059
495 $retval 1060 $retval
496} 1061}
497 1062
498sub urxvt::term::proxy::AUTOLOAD { 1063sub SET_COLOR($$$) {
499 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 1064 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
1065}
1066
1067sub rend2mask {
1068 no strict 'refs';
1069 my ($str, $mask) = (@_, 0);
1070 my %color = ( fg => undef, bg => undef );
1071 my @failed;
1072 for my $spec ( split /\s+/, $str ) {
1073 if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
1074 $color{lc($1)} = $2;
1075 } else {
1076 my $neg = $spec =~ s/^[-^]//;
1077 unless ( exists &{"RS_$spec"} ) {
1078 push @failed, $spec;
1079 next;
1080 }
1081 my $cur = &{"RS_$spec"};
1082 if ( $neg ) {
1083 $mask &= ~$cur;
1084 } else {
1085 $mask |= $cur;
1086 }
1087 }
1088 }
1089 ($mask, @color{qw(fg bg)}, \@failed)
1090}
1091
1092# urxvt::term::extension
1093
1094package urxvt::term::extension;
1095
1096sub enable {
1097 my ($self, %hook) = @_;
1098 my $pkg = $self->{_pkg};
1099
1100 while (my ($name, $cb) = each %hook) {
1101 my $htype = $HOOKTYPE{uc $name};
1102 defined $htype
1103 or Carp::croak "unsupported hook type '$name'";
1104
1105 $self->modify_should_invoke_count ($htype, +1)
1106 unless exists $self->{term}{_hook}[$htype]{$pkg};
1107
1108 $self->{term}{_hook}[$htype]{$pkg} = $cb;
1109 }
1110}
1111
1112sub disable {
1113 my ($self, @hook) = @_;
1114 my $pkg = $self->{_pkg};
1115
1116 for my $name (@hook) {
1117 my $htype = $HOOKTYPE{uc $name};
1118 defined $htype
1119 or Carp::croak "unsupported hook type '$name'";
1120
1121 $self->modify_should_invoke_count ($htype, -1)
1122 if delete $self->{term}{_hook}[$htype]{$pkg};
1123 }
1124}
1125
1126our $AUTOLOAD;
1127
1128sub AUTOLOAD {
1129 $AUTOLOAD =~ /:([^:]+)$/
500 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 1130 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
501 1131
502 eval qq{ 1132 eval qq{
503 sub $urxvt::term::proxy::AUTOLOAD { 1133 sub $AUTOLOAD {
504 my \$proxy = shift; 1134 my \$proxy = shift;
505 \$proxy->{term}->$1 (\@_) 1135 \$proxy->{term}->$1 (\@_)
506 } 1136 }
507 1 1137 1
508 } or die "FATAL: unable to compile method forwarder: $@"; 1138 } or die "FATAL: unable to compile method forwarder: $@";
509 1139
510 goto &$urxvt::term::proxy::AUTOLOAD; 1140 goto &$AUTOLOAD;
511} 1141}
1142
1143sub DESTROY {
1144 # nop
1145}
1146
1147# urxvt::destroy_hook
1148
1149sub urxvt::destroy_hook::DESTROY {
1150 ${$_[0]}->();
1151}
1152
1153sub urxvt::destroy_hook(&) {
1154 bless \shift, urxvt::destroy_hook::
1155}
1156
1157package urxvt::anyevent;
1158
1159=head2 The C<urxvt::anyevent> Class
1160
1161The sole purpose of this class is to deliver an interface to the
1162C<AnyEvent> module - any module using it will work inside urxvt without
1163further programming. The only exception is that you cannot wait on
1164condition variables, but non-blocking condvar use is ok. What this means
1165is that you cannot use blocking APIs, but the non-blocking variant should
1166work.
1167
1168=cut
1169
1170our $VERSION = '5.23';
1171
1172$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
1173push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
1174
1175sub timer {
1176 my ($class, %arg) = @_;
1177
1178 my $cb = $arg{cb};
1179
1180 urxvt::timer
1181 ->new
1182 ->after ($arg{after}, $arg{interval})
1183 ->cb ($arg{interval} ? $cb : sub {
1184 $_[0]->stop; # need to cancel manually
1185 $cb->();
1186 })
1187}
1188
1189sub io {
1190 my ($class, %arg) = @_;
1191
1192 my $cb = $arg{cb};
1193 my $fd = fileno $arg{fh};
1194 defined $fd or $fd = $arg{fh};
1195
1196 bless [$arg{fh}, urxvt::iow
1197 ->new
1198 ->fd ($fd)
1199 ->events (($arg{poll} =~ /r/ ? 1 : 0)
1200 | ($arg{poll} =~ /w/ ? 2 : 0))
1201 ->start
1202 ->cb ($cb)
1203 ], urxvt::anyevent::
1204}
1205
1206sub idle {
1207 my ($class, %arg) = @_;
1208
1209 my $cb = $arg{cb};
1210
1211 urxvt::iw
1212 ->new
1213 ->start
1214 ->cb ($cb)
1215}
1216
1217sub child {
1218 my ($class, %arg) = @_;
1219
1220 my $cb = $arg{cb};
1221
1222 urxvt::pw
1223 ->new
1224 ->start ($arg{pid})
1225 ->cb (sub {
1226 $_[0]->stop; # need to cancel manually
1227 $cb->($_[0]->rpid, $_[0]->rstatus);
1228 })
1229}
1230
1231sub DESTROY {
1232 $_[0][1]->stop;
1233}
1234
1235# only needed for AnyEvent < 6 compatibility
1236sub one_event {
1237 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
1238}
1239
1240package urxvt::term;
512 1241
513=head2 The C<urxvt::term> Class 1242=head2 The C<urxvt::term> Class
514 1243
515=over 4 1244=over 4
516 1245
1246=cut
1247
1248# find on_xxx subs in the package and register them
1249# as hooks
1250sub register_package {
1251 my ($self, $pkg, $argv) = @_;
1252
1253 no strict 'refs';
1254
1255 urxvt::verbose 6, "register package $pkg to $self";
1256
1257 @{"$pkg\::ISA"} = urxvt::term::extension::;
1258
1259 my $proxy = bless {
1260 _pkg => $pkg,
1261 argv => $argv,
1262 }, $pkg;
1263 Scalar::Util::weaken ($proxy->{term} = $self);
1264
1265 $self->{_pkg}{$pkg} = $proxy;
1266
1267 for my $name (@HOOKNAME) {
1268 if (my $ref = $pkg->can ("on_" . lc $name)) {
1269 $proxy->enable ($name => $ref);
1270 }
1271 }
1272}
1273
1274=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1275
1276Creates a new terminal, very similar as if you had started it with system
1277C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1278hash which defines the environment of the new terminal.
1279
1280Croaks (and probably outputs an error message) if the new instance
1281couldn't be created. Returns C<undef> if the new instance didn't
1282initialise perl, and the terminal object otherwise. The C<init> and
1283C<start> hooks will be called before this call returns, and are free to
1284refer to global data (which is race free).
1285
1286=cut
1287
1288sub new {
1289 my ($class, $env, @args) = @_;
1290
1291 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1292 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1293
1294 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
1295}
1296
517=item $term->destroy 1297=item $term->destroy
518 1298
519Destroy the terminal object (close the window, free resources etc.). 1299Destroy the terminal object (close the window, free resources
1300etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1301watchers (timers, io watchers) are still active.
1302
1303=item $term->exec_async ($cmd[, @args])
1304
1305Works like the combination of the C<fork>/C<exec> builtins, which executes
1306("starts") programs in the background. This function takes care of setting
1307the user environment before exec'ing the command (e.g. C<PATH>) and should
1308be preferred over explicit calls to C<exec> or C<system>.
1309
1310Returns the pid of the subprocess or C<undef> on error.
1311
1312=cut
1313
1314sub exec_async {
1315 my $self = shift;
1316
1317 my $pid = fork;
1318
1319 return $pid
1320 if !defined $pid or $pid;
1321
1322 %ENV = %{ $self->env };
1323
1324 exec @_;
1325 urxvt::_exit 255;
1326}
1327
1328=item $isset = $term->option ($optval[, $set])
1329
1330Returns true if the option specified by C<$optval> is enabled, and
1331optionally change it. All option values are stored by name in the hash
1332C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
1333
1334Here is a likely non-exhaustive list of option names, please see the
1335source file F</src/optinc.h> to see the actual list:
1336
1337 borderLess buffered console cursorBlink cursorUnderline hold iconic
1338 insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
1339 mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
1340 pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
1341 scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
1342 secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
1343 urgentOnBell utmpInhibit visualBell
520 1344
521=item $value = $term->resource ($name[, $newval]) 1345=item $value = $term->resource ($name[, $newval])
522 1346
523Returns the current resource value associated with a given name and 1347Returns the current resource value associated with a given name and
524optionally sets a new value. Setting values is most useful in the C<init> 1348optionally sets a new value. Setting values is most useful in the C<init>
533likely change). 1357likely change).
534 1358
535Please note that resource strings will currently only be freed when the 1359Please note that resource strings will currently only be freed when the
536terminal is destroyed, so changing options frequently will eat memory. 1360terminal is destroyed, so changing options frequently will eat memory.
537 1361
538Here is a a likely non-exhaustive list of resource names, not all of which 1362Here is a likely non-exhaustive list of resource names, not all of which
539are supported in every build, please see the source to see the actual 1363are supported in every build, please see the source file F</src/rsinc.h>
540list: 1364to see the actual list:
541 1365
542 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1366 answerbackstring backgroundPixmap backspace_key blendtype blurradius
543 borderLess color cursorBlink cursorUnderline cutchars delete_key 1367 boldFont boldItalicFont borderLess buffered chdir color cursorBlink
544 display_name embed ext_bwidth fade font geometry hold iconName 1368 cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
545 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1369 fade font geometry hold iconName iconfile imFont imLocale inputMethod
1370 insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
546 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1371 jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
547 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1372 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
548 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1373 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
549 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1374 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
550 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1375 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
551 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1376 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
552 shade term_name title transparent transparent_all tripleclickwords 1377 secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
1378 term_name title transient_for transparent tripleclickwords urgentOnBell
553 utmpInhibit visualBell 1379 utmpInhibit visualBell
554 1380
555=cut 1381=cut
556 1382
557sub urxvt::term::resource($$;$) { 1383sub resource($$;$) {
558 my ($self, $name) = (shift, shift); 1384 my ($self, $name) = (shift, shift);
559 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1385 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
560 goto &urxvt::term::_resource; 1386 goto &urxvt::term::_resource
561} 1387}
1388
1389=item $value = $term->x_resource ($pattern)
1390
1391Returns the X-Resource for the given pattern, excluding the program or
1392class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1393same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1394resource with that pattern exists.
1395
1396This method should only be called during the C<on_start> hook, as there is
1397only one resource database per display, and later invocations might return
1398the wrong resources.
1399
1400=item $success = $term->parse_keysym ($key, $octets)
1401
1402Adds a key binding exactly as specified via a resource. See the
1403C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1404
1405=item $term->register_command ($keysym, $modifiermask, $string)
1406
1407Adds a key binding. This is a lower level api compared to
1408C<parse_keysym>, as it expects a parsed key description, and can be
1409used only inside either the C<on_init> hook, to add a binding, or the
1410C<on_register_command> hook, to modify a parsed binding.
562 1411
563=item $rend = $term->rstyle ([$new_rstyle]) 1412=item $rend = $term->rstyle ([$new_rstyle])
564 1413
565Return and optionally change the current rendition. Text that is output by 1414Return and optionally change the current rendition. Text that is output by
566the terminal application will use this style. 1415the terminal application will use this style.
574 1423
575=item ($row, $col) = $term->selection_beg ([$row, $col]) 1424=item ($row, $col) = $term->selection_beg ([$row, $col])
576 1425
577=item ($row, $col) = $term->selection_end ([$row, $col]) 1426=item ($row, $col) = $term->selection_end ([$row, $col])
578 1427
579Return the current values of the selection mark, begin or end positions, 1428Return the current values of the selection mark, begin or end positions.
580and optionally set them to new values.
581 1429
1430When arguments are given, then the selection coordinates are set to
1431C<$row> and C<$col>, and the selection screen is set to the current
1432screen.
1433
1434=item $screen = $term->selection_screen ([$screen])
1435
1436Returns the current selection screen, and then optionally sets it.
1437
1438=item $term->selection_make ($eventtime[, $rectangular])
1439
1440Tries to make a selection as set by C<selection_beg> and
1441C<selection_end>. If C<$rectangular> is true (default: false), a
1442rectangular selection will be made. This is the preferred function to make
1443a selection.
1444
582=item $success = $term->selection_grab ($eventtime) 1445=item $success = $term->selection_grab ($eventtime[, $clipboard])
583 1446
584Try to request the primary selection from the server (for example, as set 1447Try to acquire ownership of the primary (clipboard if C<$clipboard> is
585by the next method). 1448true) selection from the server. The corresponding text can be set
1449with the next method. No visual feedback will be given. This function
1450is mostly useful from within C<on_sel_grab> hooks.
586 1451
587=item $oldtext = $term->selection ([$newtext]) 1452=item $oldtext = $term->selection ([$newtext, $clipboard])
588 1453
589Return the current selection text and optionally replace it by C<$newtext>. 1454Return the current selection (clipboard if C<$clipboard> is true) text
1455and optionally replace it by C<$newtext>.
590 1456
1457=item $term->selection_clear ([$clipboard])
1458
1459Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
1460
591#=item $term->overlay ($x, $y, $text) 1461=item $term->overlay_simple ($x, $y, $text)
592# 1462
593#Create a simple multi-line overlay box. See the next method for details. 1463Create a simple multi-line overlay box. See the next method for details.
594# 1464
595#=cut 1465=cut
596# 1466
597#sub urxvt::term::scr_overlay { 1467sub overlay_simple {
598# my ($self, $x, $y, $text) = @_; 1468 my ($self, $x, $y, $text) = @_;
599# 1469
600# my @lines = split /\n/, $text; 1470 my @lines = split /\n/, $text;
601# 1471
602# my $w = 0; 1472 my $w = List::Util::max map $self->strwidth ($_), @lines;
603# for (map $self->strwidth ($_), @lines) { 1473
604# $w = $_ if $w < $_;
605# }
606#
607# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1474 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
608# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1475 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
609#} 1476
1477 $overlay
1478}
610 1479
611=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1480=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
612 1481
613Create a new (empty) overlay at the given position with the given 1482Create a new (empty) overlay at the given position with the given
614width/height. C<$rstyle> defines the initial rendition style 1483width/height. C<$rstyle> defines the initial rendition style
625 1494
626The methods currently supported on C<urxvt::overlay> objects are: 1495The methods currently supported on C<urxvt::overlay> objects are:
627 1496
628=over 4 1497=over 4
629 1498
630=item $overlay->set ($x, $y, $text, $rend) 1499=item $overlay->set ($x, $y, $text[, $rend])
631 1500
632Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts 1501Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
633text in rxvt-unicode's special encoding and an array of rendition values 1502text in rxvt-unicode's special encoding and an array of rendition values
634at a specific position inside the overlay. 1503at a specific position inside the overlay.
635 1504
1505If C<$rend> is missing, then the rendition will not be changed.
1506
636=item $overlay->hide 1507=item $overlay->hide
637 1508
638If visible, hide the overlay, but do not destroy it. 1509If visible, hide the overlay, but do not destroy it.
639 1510
640=item $overlay->show 1511=item $overlay->show
641 1512
642If hidden, display the overlay again. 1513If hidden, display the overlay again.
643 1514
644=back 1515=back
645 1516
1517=item $popup = $term->popup ($event)
1518
1519Creates a new C<urxvt::popup> object that implements a popup menu. The
1520C<$event> I<must> be the event causing the menu to pop up (a button event,
1521currently).
1522
1523=cut
1524
1525sub popup {
1526 my ($self, $event) = @_;
1527
1528 $self->grab ($event->{time}, 1)
1529 or return;
1530
1531 my $popup = bless {
1532 term => $self,
1533 event => $event,
1534 }, urxvt::popup::;
1535
1536 Scalar::Util::weaken $popup->{term};
1537
1538 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
1539 Scalar::Util::weaken $self->{_destroy}{$popup};
1540
1541 $popup
1542}
1543
646=item $cellwidth = $term->strwidth $string 1544=item $cellwidth = $term->strwidth ($string)
647 1545
648Returns the number of screen-cells this string would need. Correctly 1546Returns the number of screen-cells this string would need. Correctly
649accounts for wide and combining characters. 1547accounts for wide and combining characters.
650 1548
651=item $octets = $term->locale_encode $string 1549=item $octets = $term->locale_encode ($string)
652 1550
653Convert the given text string into the corresponding locale encoding. 1551Convert the given text string into the corresponding locale encoding.
654 1552
655=item $string = $term->locale_decode $octets 1553=item $string = $term->locale_decode ($octets)
656 1554
657Convert the given locale-encoded octets into a perl string. 1555Convert the given locale-encoded octets into a perl string.
1556
1557=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1558
1559XORs the rendition values in the given span with the provided value
1560(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1561refresh hooks to provide effects similar to the selection.
1562
1563=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1564
1565Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1566whitespace will additionally be xored with the C<$rstyle2>, which defaults
1567to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1568it instead. Both styles I<MUST NOT> contain font styles.
1569
1570=item $term->scr_bell
1571
1572Ring the bell!
658 1573
659=item $term->scr_add_lines ($string) 1574=item $term->scr_add_lines ($string)
660 1575
661Write the given text string to the screen, as if output by the application 1576Write the given text string to the screen, as if output by the application
662running inside the terminal. It may not contain command sequences (escape 1577running inside the terminal. It may not contain command sequences (escape
665 1580
666Normally its not a good idea to use this function, as programs might be 1581Normally its not a good idea to use this function, as programs might be
667confused by changes in cursor position or scrolling. Its useful inside a 1582confused by changes in cursor position or scrolling. Its useful inside a
668C<on_add_lines> hook, though. 1583C<on_add_lines> hook, though.
669 1584
1585=item $term->scr_change_screen ($screen)
1586
1587Switch to given screen - 0 primary, 1 secondary.
1588
670=item $term->cmd_parse ($octets) 1589=item $term->cmd_parse ($octets)
671 1590
672Similar to C<scr_add_lines>, but the argument must be in the 1591Similar to C<scr_add_lines>, but the argument must be in the
673locale-specific encoding of the terminal and can contain command sequences 1592locale-specific encoding of the terminal and can contain command sequences
674(escape codes) that will be interpreted. 1593(escape codes) that will be interpreted.
675 1594
676=item $term->tt_write ($octets) 1595=item $term->tt_write ($octets)
677 1596
678Write the octets given in C<$data> to the tty (i.e. as program input). To 1597Write the octets given in C<$octets> to the tty (i.e. as program input). To
679pass characters instead of octets, you should convert your strings first 1598pass characters instead of octets, you should convert your strings first
680to the locale-specific encoding using C<< $term->locale_encode >>. 1599to the locale-specific encoding using C<< $term->locale_encode >>.
681 1600
1601=item $term->tt_paste ($octets)
1602
1603Write the octets given in C<$octets> to the tty as a paste, converting NL to
1604CR and bracketing the data with control sequences if bracketed paste mode
1605is set.
1606
1607=item $old_events = $term->pty_ev_events ([$new_events])
1608
1609Replaces the event mask of the pty watcher by the given event mask. Can
1610be used to suppress input and output handling to the pty/tty. See the
1611description of C<< urxvt::timer->events >>. Make sure to always restore
1612the previous value.
1613
1614=item $fd = $term->pty_fd
1615
1616Returns the master file descriptor for the pty in use, or C<-1> if no pty
1617is used.
1618
1619=item $windowid = $term->parent
1620
1621Return the window id of the toplevel window.
1622
1623=item $windowid = $term->vt
1624
1625Return the window id of the terminal window.
1626
1627=item $term->vt_emask_add ($x_event_mask)
1628
1629Adds the specified events to the vt event mask. Useful e.g. when you want
1630to receive pointer events all the times:
1631
1632 $term->vt_emask_add (urxvt::PointerMotionMask);
1633
1634=item $term->set_urgency ($set)
1635
1636Enable/disable the urgency hint on the toplevel window.
1637
1638=item $term->focus_in
1639
1640=item $term->focus_out
1641
1642=item $term->key_press ($state, $keycode[, $time])
1643
1644=item $term->key_release ($state, $keycode[, $time])
1645
1646Deliver various fake events to to terminal.
1647
682=item $window_width = $term->width 1648=item $window_width = $term->width
683 1649
684=item $window_height = $term->height 1650=item $window_height = $term->height
685 1651
686=item $font_width = $term->fwidth 1652=item $font_width = $term->fwidth
699 1665
700=item $max_scrollback = $term->saveLines 1666=item $max_scrollback = $term->saveLines
701 1667
702=item $nrow_plus_saveLines = $term->total_rows 1668=item $nrow_plus_saveLines = $term->total_rows
703 1669
704=item $lines_in_scrollback = $term->nsaved 1670=item $topmost_scrollback_row = $term->top_row
705 1671
706Return various integers describing terminal characteristics. 1672Return various integers describing terminal characteristics.
707 1673
1674=item $x_display = $term->display_id
1675
1676Return the DISPLAY used by rxvt-unicode.
1677
1678=item $lc_ctype = $term->locale
1679
1680Returns the LC_CTYPE category string used by this rxvt-unicode.
1681
1682=item $env = $term->env
1683
1684Returns a copy of the environment in effect for the terminal as a hashref
1685similar to C<\%ENV>.
1686
1687=item @envv = $term->envv
1688
1689Returns the environment as array of strings of the form C<VAR=VALUE>.
1690
1691=item @argv = $term->argv
1692
1693Return the argument vector as this terminal, similar to @ARGV, but
1694includes the program name as first element.
1695
1696=cut
1697
1698sub env {
1699 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1700}
1701
1702=item $modifiermask = $term->ModLevel3Mask
1703
1704=item $modifiermask = $term->ModMetaMask
1705
1706=item $modifiermask = $term->ModNumLockMask
1707
1708Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1709AltGr), the meta key (often Alt) and the num lock key, if applicable.
1710
1711=item $screen = $term->current_screen
1712
1713Returns the currently displayed screen (0 primary, 1 secondary).
1714
1715=item $cursor_is_hidden = $term->hidden_cursor
1716
1717Returns whether the cursor is currently hidden or not.
1718
708=item $view_start = $term->view_start ([$newvalue]) 1719=item $view_start = $term->view_start ([$newvalue])
709 1720
710Returns the negative row number of the topmost line. Minimum value is 1721Returns the row number of the topmost displayed line. Maximum value is
711C<0>, which displays the normal terminal contents. Larger values scroll 1722C<0>, which displays the normal terminal contents. Lower values scroll
712this many lines into the scrollback buffer. 1723this many lines into the scrollback buffer.
713 1724
714=item $term->want_refresh 1725=item $term->want_refresh
715 1726
716Requests a screen refresh. At the next opportunity, rxvt-unicode will 1727Requests a screen refresh. At the next opportunity, rxvt-unicode will
719 1730
720Used after changing terminal contents to display them. 1731Used after changing terminal contents to display them.
721 1732
722=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 1733=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
723 1734
724Returns the text of the entire row with number C<$row_number>. Row C<0> 1735Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
725is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 1736is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
726terminal line. The scrollback buffer starts at line C<-1> and extends to
727line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line 1737terminal line. Nothing will be returned if a nonexistent line
728is requested. 1738is requested.
729 1739
730If C<$new_text> is specified, it will replace characters in the current 1740If C<$new_text> is specified, it will replace characters in the current
731line, starting at column C<$start_col> (default C<0>), which is useful 1741line, starting at column C<$start_col> (default C<0>), which is useful
732to replace only parts of a line. The font index in the rendition will 1742to replace only parts of a line. The font index in the rendition will
733automatically be updated. 1743automatically be updated.
734 1744
735C<$text> is in a special encoding: tabs and wide characters that use more 1745C<$text> is in a special encoding: tabs and wide characters that use more
736than one cell when displayed are padded with urxvt::NOCHAR characters 1746than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
737(C<chr 65535>). Characters with combining characters and other characters 1747characters. Characters with combining characters and other characters that
738that do not fit into the normal tetx encoding will be replaced with 1748do not fit into the normal text encoding will be replaced with characters
739characters in the private use area. 1749in the private use area.
740 1750
741You have to obey this encoding when changing text. The advantage is 1751You have to obey this encoding when changing text. The advantage is
742that C<substr> and similar functions work on screen cells and not on 1752that C<substr> and similar functions work on screen cells and not on
743characters. 1753characters.
744 1754
795Return the row number of the first/last row of the line, respectively. 1805Return the row number of the first/last row of the line, respectively.
796 1806
797=item $offset = $line->offset_of ($row, $col) 1807=item $offset = $line->offset_of ($row, $col)
798 1808
799Returns the character offset of the given row|col pair within the logical 1809Returns the character offset of the given row|col pair within the logical
800line. 1810line. Works for rows outside the line, too, and returns corresponding
1811offsets outside the string.
801 1812
802=item ($row, $col) = $line->coord_of ($offset) 1813=item ($row, $col) = $line->coord_of ($offset)
803 1814
804Translates a string offset into terminal coordinates again. 1815Translates a string offset into terminal coordinates again.
805 1816
806=back 1817=back
807 1818
808=cut 1819=cut
809 1820
810sub urxvt::term::line { 1821sub line {
811 my ($self, $row) = @_; 1822 my ($self, $row) = @_;
812 1823
813 my $maxrow = $self->nrow - 1; 1824 my $maxrow = $self->nrow - 1;
814 1825
815 my ($beg, $end) = ($row, $row); 1826 my ($beg, $end) = ($row, $row);
879 $offset / $self->{ncol} + $self->{beg}, 1890 $offset / $self->{ncol} + $self->{beg},
880 $offset % $self->{ncol} 1891 $offset % $self->{ncol}
881 ) 1892 )
882} 1893}
883 1894
884=item ($row, $col) = $line->coord_of ($offset)
885=item $text = $term->special_encode $string 1895=item $text = $term->special_encode $string
886 1896
887Converts a perl string into the special encoding used by rxvt-unicode, 1897Converts a perl string into the special encoding used by rxvt-unicode,
888where one character corresponds to one screen cell. See 1898where one character corresponds to one screen cell. See
889C<< $term->ROW_t >> for details. 1899C<< $term->ROW_t >> for details.
890 1900
891=item $string = $term->special_decode $text 1901=item $string = $term->special_decode $text
892 1902
893Converts rxvt-unicodes text reprsentation into a perl string. See 1903Converts rxvt-unicodes text representation into a perl string. See
894C<< $term->ROW_t >> for details. 1904C<< $term->ROW_t >> for details.
895 1905
1906=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1907
1908=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1909
1910Register/unregister a synchronous button grab. See the XGrabButton
1911manpage.
1912
1913=item $success = $term->grab ($eventtime[, $sync])
1914
1915Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1916synchronous (C<$sync> is true). Also remembers the grab timestamp.
1917
1918=item $term->allow_events_async
1919
1920Calls XAllowEvents with AsyncBoth for the most recent grab.
1921
1922=item $term->allow_events_sync
1923
1924Calls XAllowEvents with SyncBoth for the most recent grab.
1925
1926=item $term->allow_events_replay
1927
1928Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1929recent grab.
1930
1931=item $term->ungrab
1932
1933Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1934evaluation errors, as it is better to lose the grab in the error case as
1935the session.
1936
1937=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1938
1939=item $atom_name = $term->XGetAtomName ($atom)
1940
1941=item @atoms = $term->XListProperties ($window)
1942
1943=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1944
1945=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
1946
1947=item $term->XDeleteProperty ($window, $property)
1948
1949=item $window = $term->DefaultRootWindow
1950
1951=item $term->XReparentWindow ($window, $parent, [$x, $y])
1952
1953=item $term->XMapWindow ($window)
1954
1955=item $term->XUnmapWindow ($window)
1956
1957=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1958
1959=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1960
1961=item $term->XChangeInput ($window, $add_events[, $del_events])
1962
1963=item $keysym = $term->XStringToKeysym ($string)
1964
1965=item $string = $term->XKeysymToString ($keysym)
1966
1967Various X or X-related functions. The C<$term> object only serves as
1968the source of the display, otherwise those functions map more-or-less
1969directly onto the X functions of the same name.
1970
896=back 1971=back
1972
1973=cut
1974
1975package urxvt::popup;
1976
1977=head2 The C<urxvt::popup> Class
1978
1979=over 4
1980
1981=cut
1982
1983sub add_item {
1984 my ($self, $item) = @_;
1985
1986 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1987 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1988 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1989
1990 $item->{render} ||= sub { $_[0]{text} };
1991
1992 push @{ $self->{item} }, $item;
1993}
1994
1995=item $popup->add_title ($title)
1996
1997Adds a non-clickable title to the popup.
1998
1999=cut
2000
2001sub add_title {
2002 my ($self, $title) = @_;
2003
2004 $self->add_item ({
2005 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
2006 text => $title,
2007 activate => sub { },
2008 });
2009}
2010
2011=item $popup->add_separator ([$sepchr])
2012
2013Creates a separator, optionally using the character given as C<$sepchr>.
2014
2015=cut
2016
2017sub add_separator {
2018 my ($self, $sep) = @_;
2019
2020 $sep ||= "=";
2021
2022 $self->add_item ({
2023 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
2024 text => "",
2025 render => sub { $sep x $self->{term}->ncol },
2026 activate => sub { },
2027 });
2028}
2029
2030=item $popup->add_button ($text, $cb)
2031
2032Adds a clickable button to the popup. C<$cb> is called whenever it is
2033selected.
2034
2035=cut
2036
2037sub add_button {
2038 my ($self, $text, $cb) = @_;
2039
2040 $self->add_item ({ type => "button", text => $text, activate => $cb});
2041}
2042
2043=item $popup->add_toggle ($text, $initial_value, $cb)
2044
2045Adds a toggle/checkbox item to the popup. The callback gets called
2046whenever it gets toggled, with a boolean indicating its new value as its
2047first argument.
2048
2049=cut
2050
2051sub add_toggle {
2052 my ($self, $text, $value, $cb) = @_;
2053
2054 my $item; $item = {
2055 type => "button",
2056 text => " $text",
2057 value => $value,
2058 render => sub { ($_[0]{value} ? "* " : " ") . $text },
2059 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
2060 };
2061
2062 $self->add_item ($item);
2063}
2064
2065=item $popup->show
2066
2067Displays the popup (which is initially hidden).
2068
2069=cut
2070
2071sub show {
2072 my ($self) = @_;
2073
2074 local $urxvt::popup::self = $self;
2075
2076 my $env = $self->{term}->env;
2077 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
2078 delete $env->{LC_ALL};
2079 $env->{LC_CTYPE} = $self->{term}->locale;
2080
2081 my $term = urxvt::term->new (
2082 $env, "popup",
2083 "--perl-lib" => "", "--perl-ext-common" => "",
2084 "-pty-fd" => -1, "-sl" => 0,
2085 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
2086 "--transient-for" => $self->{term}->parent,
2087 "-display" => $self->{term}->display_id,
2088 "-pe" => "urxvt-popup",
2089 ) or die "unable to create popup window\n";
2090
2091 unless (delete $term->{urxvt_popup_init_done}) {
2092 $term->ungrab;
2093 $term->destroy;
2094 die "unable to initialise popup window\n";
2095 }
2096}
2097
2098sub DESTROY {
2099 my ($self) = @_;
2100
2101 delete $self->{term}{_destroy}{$self};
2102 $self->{term}->ungrab;
2103}
2104
2105=back
2106
2107=cut
2108
2109package urxvt::watcher;
897 2110
898=head2 The C<urxvt::timer> Class 2111=head2 The C<urxvt::timer> Class
899 2112
900This class implements timer watchers/events. Time is represented as a 2113This class implements timer watchers/events. Time is represented as a
901fractional number of seconds since the epoch. Example: 2114fractional number of seconds since the epoch. Example:
905 ->new 2118 ->new
906 ->interval (1) 2119 ->interval (1)
907 ->cb (sub { 2120 ->cb (sub {
908 $term->{overlay}->set (0, 0, 2121 $term->{overlay}->set (0, 0,
909 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); 2122 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
910 }); 2123 });
911 2124
912=over 4 2125=over 4
913 2126
914=item $timer = new urxvt::timer 2127=item $timer = new urxvt::timer
915 2128
918 2131
919=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 2132=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
920 2133
921Set the callback to be called when the timer triggers. 2134Set the callback to be called when the timer triggers.
922 2135
923=item $tstamp = $timer->at
924
925Return the time this watcher will fire next.
926
927=item $timer = $timer->set ($tstamp) 2136=item $timer = $timer->set ($tstamp[, $interval])
928 2137
929Set the time the event is generated to $tstamp. 2138Set the time the event is generated to $tstamp (and optionally specifies a
2139new $interval).
930 2140
931=item $timer = $timer->interval ($interval) 2141=item $timer = $timer->interval ($interval)
932 2142
933Normally (and when C<$interval> is C<0>), the timer will automatically 2143By default (and when C<$interval> is C<0>), the timer will automatically
934stop after it has fired once. If C<$interval> is non-zero, then the timer 2144stop after it has fired once. If C<$interval> is non-zero, then the timer
935is automatically rescheduled at the given intervals. 2145is automatically rescheduled at the given intervals.
936 2146
937=item $timer = $timer->start 2147=item $timer = $timer->start
938 2148
939Start the timer. 2149Start the timer.
940 2150
941=item $timer = $timer->start ($tstamp) 2151=item $timer = $timer->start ($tstamp[, $interval])
942 2152
943Set the event trigger time to C<$tstamp> and start the timer. 2153Set the event trigger time to C<$tstamp> and start the timer. Optionally
2154also replaces the interval.
2155
2156=item $timer = $timer->after ($delay[, $interval])
2157
2158Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
944 2159
945=item $timer = $timer->stop 2160=item $timer = $timer->stop
946 2161
947Stop the timer. 2162Stop the timer.
948 2163
954 2169
955 $term->{socket} = ... 2170 $term->{socket} = ...
956 $term->{iow} = urxvt::iow 2171 $term->{iow} = urxvt::iow
957 ->new 2172 ->new
958 ->fd (fileno $term->{socket}) 2173 ->fd (fileno $term->{socket})
959 ->events (1) # wait for read data 2174 ->events (urxvt::EV_READ)
960 ->start 2175 ->start
961 ->cb (sub { 2176 ->cb (sub {
962 my ($iow, $revents) = @_; 2177 my ($iow, $revents) = @_;
963 # $revents must be 1 here, no need to check 2178 # $revents must be 1 here, no need to check
964 sysread $term->{socket}, my $buf, 8192 2179 sysread $term->{socket}, my $buf, 8192
977Set the callback to be called when io events are triggered. C<$reventmask> 2192Set the callback to be called when io events are triggered. C<$reventmask>
978is a bitset as described in the C<events> method. 2193is a bitset as described in the C<events> method.
979 2194
980=item $iow = $iow->fd ($fd) 2195=item $iow = $iow->fd ($fd)
981 2196
982Set the filedescriptor (not handle) to watch. 2197Set the file descriptor (not handle) to watch.
983 2198
984=item $iow = $iow->events ($eventmask) 2199=item $iow = $iow->events ($eventmask)
985 2200
986Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 2201Set the event mask to watch. The only allowed values are
987data, Bit #1 (value C<2>) enables watching for write data. 2202C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
2203together, or C<urxvt::EV_NONE>.
988 2204
989=item $iow = $iow->start 2205=item $iow = $iow->start
990 2206
991Start watching for requested events on the given handle. 2207Start watching for requested events on the given handle.
992 2208
993=item $iow = $iow->stop 2209=item $iow = $iow->stop
994 2210
995Stop watching for events on the given filehandle. 2211Stop watching for events on the given file handle.
2212
2213=back
2214
2215=head2 The C<urxvt::iw> Class
2216
2217This class implements idle watchers, that get called automatically when
2218the process is idle. They should return as fast as possible, after doing
2219some useful work.
2220
2221=over 4
2222
2223=item $iw = new urxvt::iw
2224
2225Create a new idle watcher object in stopped state.
2226
2227=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2228
2229Set the callback to be called when the watcher triggers.
2230
2231=item $timer = $timer->start
2232
2233Start the watcher.
2234
2235=item $timer = $timer->stop
2236
2237Stop the watcher.
2238
2239=back
2240
2241=head2 The C<urxvt::pw> Class
2242
2243This class implements process watchers. They create an event whenever a
2244process exits, after which they stop automatically.
2245
2246 my $pid = fork;
2247 ...
2248 $term->{pw} = urxvt::pw
2249 ->new
2250 ->start ($pid)
2251 ->cb (sub {
2252 my ($pw, $exit_status) = @_;
2253 ...
2254 });
2255
2256=over 4
2257
2258=item $pw = new urxvt::pw
2259
2260Create a new process watcher in stopped state.
2261
2262=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2263
2264Set the callback to be called when the timer triggers.
2265
2266=item $pw = $timer->start ($pid)
2267
2268Tells the watcher to start watching for process C<$pid>.
2269
2270=item $pw = $pw->stop
2271
2272Stop the watcher.
996 2273
997=back 2274=back
998 2275
999=head1 ENVIRONMENT 2276=head1 ENVIRONMENT
1000 2277
1003This variable controls the verbosity level of the perl extension. Higher 2280This variable controls the verbosity level of the perl extension. Higher
1004numbers indicate more verbose output. 2281numbers indicate more verbose output.
1005 2282
1006=over 4 2283=over 4
1007 2284
1008=item =0 - only fatal messages 2285=item == 0 - fatal messages
1009 2286
1010=item =3 - script loading and management 2287=item >= 3 - script loading and management
1011 2288
1012=item =10 - all events received 2289=item >=10 - all called hooks
2290
2291=item >=11 - hook return values
1013 2292
1014=back 2293=back
1015 2294
1016=head1 AUTHOR 2295=head1 AUTHOR
1017 2296
1018 Marc Lehmann <pcg@goof.com> 2297 Marc Lehmann <schmorp@schmorp.de>
1019 http://software.schmorp.de/pkg/rxvt-unicode 2298 http://software.schmorp.de/pkg/rxvt-unicode
1020 2299
1021=cut 2300=cut
1022 2301
10231 23021
2303
2304# vim: sw=3:

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