1 |
=encoding utf8 |
2 |
|
3 |
=head1 NAME |
4 |
|
5 |
@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter |
6 |
|
7 |
=head1 SYNOPSIS |
8 |
|
9 |
# create a file grab_test in $HOME: |
10 |
|
11 |
sub on_sel_grab { |
12 |
warn "you selected ", $_[0]->selection; |
13 |
() |
14 |
} |
15 |
|
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# start a @@RXVT_NAME@@ using it: |
17 |
|
18 |
@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test |
19 |
|
20 |
=head1 DESCRIPTION |
21 |
|
22 |
Everytime a terminal object gets created, extension scripts specified via |
23 |
the C<perl> resource are loaded and associated with it. |
24 |
|
25 |
Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
26 |
thus must be encoded as UTF-8. |
27 |
|
28 |
Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
29 |
scripts will be shared (but not enabled) for all terminals. |
30 |
|
31 |
=head1 PREPACKAGED EXTENSIONS |
32 |
|
33 |
This section describes the extensions delivered with this release. You can |
34 |
find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. |
35 |
|
36 |
You can activate them like this: |
37 |
|
38 |
@@RXVT_NAME@@ -pe <extensionname> |
39 |
|
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=over 4 |
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|
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=item selection (enabled by default) |
43 |
|
44 |
(More) intelligent selection. This extension tries to be more intelligent |
45 |
when the user extends selections (double-click). Right now, it tries to |
46 |
select urls and complete shell-quoted arguments, which is very convenient, |
47 |
too, if your F<ls> supports C<--quoting-style=shell>. |
48 |
|
49 |
It also offers the following bindable keyboard command: |
50 |
|
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=over 4 |
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|
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=item rot13 |
54 |
|
55 |
Rot-13 the selection when activated. Used via keyboard trigger: |
56 |
|
57 |
URxvt.keysym.C-M-r: perl:selection:rot13 |
58 |
|
59 |
=back |
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|
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=item option-popup (enabled by default) |
62 |
|
63 |
Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at |
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runtime. |
65 |
|
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=item selection-popup (enabled by default) |
67 |
|
68 |
Binds a popup menu to Ctrl-Button3 that lets you convert the selection |
69 |
text into various other formats/action (such as uri unescaping, perl |
70 |
evalution, web-browser starting etc.), depending on content. |
71 |
|
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=item searchable-scrollback<hotkey> (enabled by default) |
73 |
|
74 |
Adds regex search functionality to the scrollback buffer, triggered |
75 |
by a hotkey (default: C<M-s>). When in search mode, normal terminal |
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input/output is suspended. |
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|
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C</> starts an incremental regex search, C<n> searches further, C<p> or |
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C<N> jump to the previous match, C<G> jumps to the bottom and clears the |
80 |
history, C<enter> leaves search mode at the current position and C<escape> |
81 |
returns to the original position. |
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|
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=item digital-clock |
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|
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Displays a digital clock using the built-in overlay. |
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|
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=item mark-urls |
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|
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Uses per-line display filtering (C<on_line_update>) to underline urls. |
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|
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=item block-graphics-to-ascii |
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|
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A not very useful example of filtering all text output to the terminal, |
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by replacing all line-drawing characters (U+2500 .. U+259F) by a |
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similar-looking ascii character. |
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|
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=item example-refresh-hooks |
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|
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Displays a very simple digital clock in the upper right corner of the |
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window. Illustrates overwriting the refresh callbacks to create your own |
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overlays or changes. |
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|
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=back |
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|
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=head1 API DOCUMENTATION |
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|
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=head2 General API Considerations |
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|
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All objects (such as terminals, time watchers etc.) are typical |
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reference-to-hash objects. The hash can be used to store anything you |
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like. All members starting with an underscore (such as C<_ptr> or |
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C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or |
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modified). |
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|
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When objects are destroyed on the C++ side, the perl object hashes are |
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emptied, so its best to store related objects such as time watchers and |
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the like inside the terminal object so they get destroyed as soon as the |
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terminal is destroyed. |
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|
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Argument names also often indicate the type of a parameter. Here are some |
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hints on what they mean: |
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|
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=over 4 |
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|
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=item $text |
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|
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Rxvt-unicodes special way of encoding text, where one "unicode" character |
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always represents one screen cell. See L<row_t> for a discussion of this format. |
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|
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=item $string |
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|
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A perl text string, with an emphasis on I<text>. It can store all unicode |
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characters and is to be distinguished with text encoded in a specific |
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encoding (often locale-specific) and binary data. |
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|
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=item $octets |
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|
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Either binary data or - more common - a text string encoded in a |
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locale-specific way. |
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|
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=back |
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|
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=head2 Extension Objects |
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|
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Very perl extension is a perl class. A separate perl object is created |
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for each terminal and each extension and passed as the first parameter to |
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hooks. So extensions can use their C<$self> object without having to think |
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about other extensions, with the exception of methods and members that |
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begin with an underscore character C<_>: these are reserved for internal |
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use. |
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|
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Although it isn't a C<urxvt::term> object, you can call all methods of the |
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C<urxvt::term> class on this object. |
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|
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It has the following methods and data members: |
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|
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=over 4 |
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|
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=item $urxvt_term = $self->{term} |
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|
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Returns the C<urxvt::term> object associated with this instance of the |
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extension. This member I<must not> be changed in any way. |
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|
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=item $self->enable ($hook_name => $cb, [$hook_name => $cb..]) |
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|
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Dynamically enable the given hooks (named without the C<on_> prefix) for |
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this extension, replacing any previous hook. This is useful when you want |
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to overwrite time-critical hooks only temporarily. |
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|
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=item $self->disable ($hook_name[, $hook_name..]) |
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|
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Dynamically disable the given hooks. |
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|
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=back |
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|
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=head2 Hooks |
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|
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The following subroutines can be declared in extension files, and will be |
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called whenever the relevant event happens. |
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|
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The first argument passed to them is an extension oject as described in |
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the in the C<Extension Objects> section. |
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|
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B<All> of these hooks must return a boolean value. If it is true, then the |
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event counts as being I<consumed>, and the invocation of other hooks is |
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skipped, and the relevant action might not be carried out by the C++ code. |
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|
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I<< When in doubt, return a false value (preferably C<()>). >> |
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|
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=over 4 |
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|
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=item on_init $term |
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|
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Called after a new terminal object has been initialized, but before |
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windows are created or the command gets run. Most methods are unsafe to |
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call or deliver senseless data, as terminal size and other characteristics |
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have not yet been determined. You can safely query and change resources, |
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though. |
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|
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=item on_reset $term |
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|
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Called after the screen is "reset" for any reason, such as resizing or |
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control sequences. Here is where you can react on changes to size-related |
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variables. |
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|
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=item on_start $term |
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|
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Called at the very end of initialisation of a new terminal, just before |
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returning to the mainloop. |
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|
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=item on_sel_make $term, $eventtime |
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|
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Called whenever a selection has been made by the user, but before the |
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selection text is copied, so changes to the beginning, end or type of the |
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selection will be honored. |
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|
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Returning a true value aborts selection making by urxvt, in which case you |
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have to make a selection yourself by calling C<< $term->selection_grab >>. |
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|
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=item on_sel_grab $term, $eventtime |
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|
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Called whenever a selection has been copied, but before the selection is |
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requested from the server. The selection text can be queried and changed |
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by calling C<< $term->selection >>. |
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|
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Returning a true value aborts selection grabbing. It will still be hilighted. |
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|
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=item on_sel_extend $term |
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|
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Called whenever the user tries to extend the selection (e.g. with a double |
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click) and is either supposed to return false (normal operation), or |
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should extend the selection itelf and return true to suppress the built-in |
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processing. |
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|
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See the F<selection> example extension. |
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|
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=item on_view_change $term, $offset |
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|
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Called whenever the view offset changes, i..e the user or program |
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scrolls. Offset C<0> means display the normal terminal, positive values |
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show this many lines of scrollback. |
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|
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=item on_scroll_back $term, $lines, $saved |
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|
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Called whenever lines scroll out of the terminal area into the scrollback |
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buffer. C<$lines> is the number of lines scrolled out and may be larger |
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than the scroll back buffer or the terminal. |
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|
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It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, |
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$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total |
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number of lines that will be in the scrollback buffer. |
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|
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=item on_osc_seq $term, $string |
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|
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Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = |
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operating system command) is processed. Cursor position and other state |
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information is up-to-date when this happens. For interoperability, the |
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string should start with the extension name and a colon, to distinguish |
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it from commands for other extensions, and this might be enforced in the |
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future. |
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|
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Be careful not ever to trust (in a security sense) the data you receive, |
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as its source can not easily be controleld (e-mail content, messages from |
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other users on the same system etc.). |
265 |
|
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=item on_add_lines $term, $string |
267 |
|
268 |
Called whenever text is about to be output, with the text as argument. You |
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can filter/change and output the text yourself by returning a true value |
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and calling C<< $term->scr_add_lines >> yourself. Please note that this |
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might be very slow, however, as your hook is called for B<all> text being |
272 |
output. |
273 |
|
274 |
=item on_tt_write $term, $octets |
275 |
|
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Called whenever some data is written to the tty/pty and can be used to |
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suppress or filter tty input. |
278 |
|
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=item on_line_update $term, $row |
280 |
|
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Called whenever a line was updated or changed. Can be used to filter |
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screen output (e.g. underline urls or other useless stuff). Only lines |
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that are being shown will be filtered, and, due to performance reasons, |
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not always immediately. |
285 |
|
286 |
The row number is always the topmost row of the line if the line spans |
287 |
multiple rows. |
288 |
|
289 |
Please note that, if you change the line, then the hook might get called |
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later with the already-modified line (e.g. if unrelated parts change), so |
291 |
you cannot just toggle rendition bits, but only set them. |
292 |
|
293 |
=item on_refresh_begin $term |
294 |
|
295 |
Called just before the screen gets redrawn. Can be used for overlay |
296 |
or similar effects by modify terminal contents in refresh_begin, and |
297 |
restoring them in refresh_end. The built-in overlay and selection display |
298 |
code is run after this hook, and takes precedence. |
299 |
|
300 |
=item on_refresh_end $term |
301 |
|
302 |
Called just after the screen gets redrawn. See C<on_refresh_begin>. |
303 |
|
304 |
=item on_keyboard_command $term, $string |
305 |
|
306 |
Called whenever the user presses a key combination that has a |
307 |
C<perl:string> action bound to it (see description of the B<keysym> |
308 |
resource in the @@RXVT_NAME@@(1) manpage). |
309 |
|
310 |
=item on_focus_in $term |
311 |
|
312 |
Called whenever the window gets the keyboard focus, before rxvt-unicode |
313 |
does focus in processing. |
314 |
|
315 |
=item on_focus_out $term |
316 |
|
317 |
Called wheneever the window loses keyboard focus, before rxvt-unicode does |
318 |
focus out processing. |
319 |
|
320 |
=item on_key_press $term, $event, $keysym, $octets |
321 |
|
322 |
=item on_key_release $term, $event, $keysym |
323 |
|
324 |
=item on_button_press $term, $event |
325 |
|
326 |
=item on_button_release $term, $event |
327 |
|
328 |
=item on_motion_notify $term, $event |
329 |
|
330 |
=item on_map_notify $term, $event |
331 |
|
332 |
=item on_unmap_notify $term, $event |
333 |
|
334 |
Called whenever the corresponding X event is received for the terminal If |
335 |
the hook returns true, then the even will be ignored by rxvt-unicode. |
336 |
|
337 |
The event is a hash with most values as named by Xlib (see the XEvent |
338 |
manpage), with the additional members C<row> and C<col>, which are the row |
339 |
and column under the mouse cursor. |
340 |
|
341 |
C<on_key_press> additionally receives the string rxvt-unicode would |
342 |
output, if any, in locale-specific encoding. |
343 |
|
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subwindow. |
345 |
|
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=back |
347 |
|
348 |
=head2 Variables in the C<urxvt> Package |
349 |
|
350 |
=over 4 |
351 |
|
352 |
=item $urxvt::LIBDIR |
353 |
|
354 |
The rxvt-unicode library directory, where, among other things, the perl |
355 |
modules and scripts are stored. |
356 |
|
357 |
=item $urxvt::RESCLASS, $urxvt::RESCLASS |
358 |
|
359 |
The resource class and name rxvt-unicode uses to look up X resources. |
360 |
|
361 |
=item $urxvt::RXVTNAME |
362 |
|
363 |
The basename of the installed binaries, usually C<urxvt>. |
364 |
|
365 |
=item $urxvt::TERM |
366 |
|
367 |
The current terminal. This variable stores the current C<urxvt::term> |
368 |
object, whenever a callback/hook is executing. |
369 |
|
370 |
=item |
371 |
|
372 |
=back |
373 |
|
374 |
=head2 Functions in the C<urxvt> Package |
375 |
|
376 |
=over 4 |
377 |
|
378 |
=item $term = new urxvt [arg...] |
379 |
|
380 |
Creates a new terminal, very similar as if you had started it with |
381 |
C<system $binfile, arg...>. Croaks (and probably outputs an error message) |
382 |
if the new instance couldn't be created. Returns C<undef> if the new |
383 |
instance didn't initialise perl, and the terminal object otherwise. The |
384 |
C<init> and C<start> hooks will be called during the call. |
385 |
|
386 |
=item urxvt::fatal $errormessage |
387 |
|
388 |
Fatally aborts execution with the given error message. Avoid at all |
389 |
costs! The only time this is acceptable is when the terminal process |
390 |
starts up. |
391 |
|
392 |
=item urxvt::warn $string |
393 |
|
394 |
Calls C<rxvt_warn> with the given string which should not include a |
395 |
newline. The module also overwrites the C<warn> builtin with a function |
396 |
that calls this function. |
397 |
|
398 |
Using this function has the advantage that its output ends up in the |
399 |
correct place, e.g. on stderr of the connecting urxvtc client. |
400 |
|
401 |
=item $is_safe = urxvt::safe |
402 |
|
403 |
Returns true when it is safe to do potentially unsafe things, such as |
404 |
evaluating perl code specified by the user. This is true when urxvt was |
405 |
started setuid or setgid. |
406 |
|
407 |
=item $time = urxvt::NOW |
408 |
|
409 |
Returns the "current time" (as per the event loop). |
410 |
|
411 |
=item urxvt::CurrentTime |
412 |
|
413 |
=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, |
414 |
Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, |
415 |
Button4Mask, Button5Mask, AnyModifier |
416 |
|
417 |
Various constants for use in X calls and event processing. |
418 |
|
419 |
=back |
420 |
|
421 |
=head2 RENDITION |
422 |
|
423 |
Rendition bitsets contain information about colour, font, font styles and |
424 |
similar information for each screen cell. |
425 |
|
426 |
The following "macros" deal with changes in rendition sets. You should |
427 |
never just create a bitset, you should always modify an existing one, |
428 |
as they contain important information required for correct operation of |
429 |
rxvt-unicode. |
430 |
|
431 |
=over 4 |
432 |
|
433 |
=item $rend = urxvt::DEFAULT_RSTYLE |
434 |
|
435 |
Returns the default rendition, as used when the terminal is starting up or |
436 |
being reset. Useful as a base to start when creating renditions. |
437 |
|
438 |
=item $rend = urxvt::OVERLAY_RSTYLE |
439 |
|
440 |
Return the rendition mask used for overlays by default. |
441 |
|
442 |
=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline |
443 |
|
444 |
Return the bit that enabled bold, italic, blink, reverse-video and |
445 |
underline, respectively. To enable such a style, just logically OR it into |
446 |
the bitset. |
447 |
|
448 |
=item $foreground = urxvt::GET_BASEFG $rend |
449 |
|
450 |
=item $background = urxvt::GET_BASEBG $rend |
451 |
|
452 |
Return the foreground/background colour index, respectively. |
453 |
|
454 |
=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour |
455 |
|
456 |
=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour |
457 |
|
458 |
Replace the foreground/background colour in the rendition mask with the |
459 |
specified one. |
460 |
|
461 |
=item $value = urxvt::GET_CUSTOM $rend |
462 |
|
463 |
Return the "custom" value: Every rendition has 5 bits for use by |
464 |
extensions. They can be set and changed as you like and are initially |
465 |
zero. |
466 |
|
467 |
=item $rend = urxvt::SET_CUSTOM $rend, $new_value |
468 |
|
469 |
Change the custom value. |
470 |
|
471 |
=back |
472 |
|
473 |
=cut |
474 |
|
475 |
package urxvt; |
476 |
|
477 |
use utf8; |
478 |
use strict; |
479 |
use Carp (); |
480 |
use Scalar::Util (); |
481 |
use List::Util (); |
482 |
|
483 |
our $VERSION = 1; |
484 |
our $TERM; |
485 |
our @HOOKNAME; |
486 |
our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; |
487 |
our %OPTION; |
488 |
|
489 |
our $LIBDIR; |
490 |
our $RESNAME; |
491 |
our $RESCLASS; |
492 |
our $RXVTNAME; |
493 |
|
494 |
BEGIN { |
495 |
urxvt->bootstrap; |
496 |
|
497 |
# overwrite perl's warn |
498 |
*CORE::GLOBAL::warn = sub { |
499 |
my $msg = join "", @_; |
500 |
$msg .= "\n" |
501 |
unless $msg =~ /\n$/; |
502 |
urxvt::warn ($msg); |
503 |
}; |
504 |
|
505 |
delete $ENV{IFS}; |
506 |
delete $ENV{CDPATH}; |
507 |
delete $ENV{BASH_ENV}; |
508 |
$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin"; |
509 |
} |
510 |
|
511 |
my @hook_count; |
512 |
my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; |
513 |
|
514 |
sub verbose { |
515 |
my ($level, $msg) = @_; |
516 |
warn "$msg\n" if $level <= $verbosity; |
517 |
} |
518 |
|
519 |
my $extension_pkg = "extension0000"; |
520 |
my %extension_pkg; |
521 |
|
522 |
# load a single script into its own package, once only |
523 |
sub extension_package($) { |
524 |
my ($path) = @_; |
525 |
|
526 |
$extension_pkg{$path} ||= do { |
527 |
my $pkg = "urxvt::" . ($extension_pkg++); |
528 |
|
529 |
verbose 3, "loading extension '$path' into package '$pkg'"; |
530 |
|
531 |
open my $fh, "<:raw", $path |
532 |
or die "$path: $!"; |
533 |
|
534 |
my $source = untaint |
535 |
"package $pkg; use strict; use utf8;\n" |
536 |
. "use base urxvt::term::extension::;\n" |
537 |
. "#line 1 \"$path\"\n{\n" |
538 |
. (do { local $/; <$fh> }) |
539 |
. "\n};\n1"; |
540 |
|
541 |
eval $source |
542 |
or die "$path: $@"; |
543 |
|
544 |
$pkg |
545 |
} |
546 |
} |
547 |
|
548 |
our $retval; # return value for urxvt |
549 |
|
550 |
# called by the rxvt core |
551 |
sub invoke { |
552 |
local $TERM = shift; |
553 |
my $htype = shift; |
554 |
|
555 |
if ($htype == 0) { # INIT |
556 |
my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); |
557 |
|
558 |
my %ext_arg; |
559 |
|
560 |
for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { |
561 |
if ($_ eq "default") { |
562 |
$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); |
563 |
} elsif (/^-(.*)$/) { |
564 |
delete $ext_arg{$1}; |
565 |
} elsif (/^([^<]+)<(.*)>$/) { |
566 |
push @{ $ext_arg{$1} }, $2; |
567 |
} else { |
568 |
$ext_arg{$_} ||= []; |
569 |
} |
570 |
} |
571 |
|
572 |
while (my ($ext, $argv) = each %ext_arg) { |
573 |
my @files = grep -f $_, map "$_/$ext", @dirs; |
574 |
|
575 |
if (@files) { |
576 |
$TERM->register_package (extension_package $files[0], $argv); |
577 |
} else { |
578 |
warn "perl extension '$ext' not found in perl library search path\n"; |
579 |
} |
580 |
} |
581 |
|
582 |
eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval"); |
583 |
warn $@ if $@; |
584 |
} |
585 |
|
586 |
$retval = undef; |
587 |
|
588 |
if (my $cb = $TERM->{_hook}[$htype]) { |
589 |
verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" |
590 |
if $verbosity >= 10; |
591 |
|
592 |
keys %$cb; |
593 |
|
594 |
while (my ($pkg, $cb) = each %$cb) { |
595 |
$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } |
596 |
and last; |
597 |
|
598 |
if ($@) { |
599 |
$TERM->ungrab; # better to lose the grab than the session |
600 |
warn $@; |
601 |
} |
602 |
} |
603 |
} |
604 |
|
605 |
if ($htype == 1) { # DESTROY |
606 |
if (my $hook = delete $TERM->{_hook}) { |
607 |
for my $htype (0..$#$hook) { |
608 |
$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } |
609 |
or set_should_invoke $htype, 0; |
610 |
} |
611 |
} |
612 |
|
613 |
# clear package objects |
614 |
%$_ = () for values %{ $TERM->{_pkg} }; |
615 |
|
616 |
# clear package |
617 |
%$TERM = (); |
618 |
} |
619 |
|
620 |
$retval |
621 |
} |
622 |
|
623 |
# urxvt::term::extension |
624 |
|
625 |
package urxvt::term::extension; |
626 |
|
627 |
sub enable { |
628 |
my ($self, %hook) = @_; |
629 |
my $pkg = $self->{_pkg}; |
630 |
|
631 |
while (my ($name, $cb) = each %hook) { |
632 |
my $htype = $HOOKTYPE{uc $name}; |
633 |
defined $htype |
634 |
or Carp::croak "unsupported hook type '$name'"; |
635 |
|
636 |
unless (exists $self->{term}{_hook}[$htype]{$pkg}) { |
637 |
$hook_count[$htype]++ |
638 |
or urxvt::set_should_invoke $htype, 1; |
639 |
} |
640 |
|
641 |
$self->{term}{_hook}[$htype]{$pkg} = $cb; |
642 |
} |
643 |
} |
644 |
|
645 |
sub disable { |
646 |
my ($self, @hook) = @_; |
647 |
my $pkg = $self->{_pkg}; |
648 |
|
649 |
for my $name (@hook) { |
650 |
my $htype = $HOOKTYPE{uc $name}; |
651 |
defined $htype |
652 |
or Carp::croak "unsupported hook type '$name'"; |
653 |
|
654 |
if (delete $self->{term}{_hook}[$htype]{$pkg}) { |
655 |
--$hook_count[$htype] |
656 |
or urxvt::set_should_invoke $htype, 0; |
657 |
} |
658 |
} |
659 |
} |
660 |
|
661 |
our $AUTOLOAD; |
662 |
|
663 |
sub AUTOLOAD { |
664 |
$AUTOLOAD =~ /:([^:]+)$/ |
665 |
or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable"; |
666 |
|
667 |
eval qq{ |
668 |
sub $AUTOLOAD { |
669 |
my \$proxy = shift; |
670 |
\$proxy->{term}->$1 (\@_) |
671 |
} |
672 |
1 |
673 |
} or die "FATAL: unable to compile method forwarder: $@"; |
674 |
|
675 |
goto &$AUTOLOAD; |
676 |
} |
677 |
|
678 |
sub DESTROY { |
679 |
# nop |
680 |
} |
681 |
|
682 |
# urxvt::destroy_hook |
683 |
|
684 |
sub urxvt::destroy_hook::DESTROY { |
685 |
${$_[0]}->(); |
686 |
} |
687 |
|
688 |
sub urxvt::destroy_hook(&) { |
689 |
bless \shift, urxvt::destroy_hook:: |
690 |
} |
691 |
|
692 |
package urxvt::anyevent; |
693 |
|
694 |
=head2 The C<urxvt::anyevent> Class |
695 |
|
696 |
The sole purpose of this class is to deliver an interface to the |
697 |
C<AnyEvent> module - any module using it will work inside urxvt without |
698 |
further programming. The only exception is that you cannot wait on |
699 |
condition variables, but non-blocking condvar use is ok. What this means |
700 |
is that you cannot use blocking APIs, but the non-blocking variant should |
701 |
work. |
702 |
|
703 |
=cut |
704 |
|
705 |
our $VERSION = 1; |
706 |
|
707 |
$INC{"urxvt/anyevent.pm"} = 1; # mark us as there |
708 |
push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::]; |
709 |
|
710 |
sub timer { |
711 |
my ($class, %arg) = @_; |
712 |
|
713 |
my $cb = $arg{cb}; |
714 |
|
715 |
urxvt::timer |
716 |
->new |
717 |
->start (urxvt::NOW + $arg{after}) |
718 |
->cb (sub { |
719 |
$_[0]->stop; # need to cancel manually |
720 |
$cb->(); |
721 |
}) |
722 |
} |
723 |
|
724 |
sub io { |
725 |
my ($class, %arg) = @_; |
726 |
|
727 |
my $cb = $arg{cb}; |
728 |
|
729 |
bless [$arg{fh}, urxvt::iow |
730 |
->new |
731 |
->fd (fileno $arg{fh}) |
732 |
->events (($arg{poll} =~ /r/ ? 1 : 0) |
733 |
| ($arg{poll} =~ /w/ ? 2 : 0)) |
734 |
->start |
735 |
->cb (sub { |
736 |
$cb->(($_[1] & 1 ? 'r' : '') |
737 |
. ($_[1] & 2 ? 'w' : '')); |
738 |
})], |
739 |
urxvt::anyevent:: |
740 |
} |
741 |
|
742 |
sub DESTROY { |
743 |
$_[0][1]->stop; |
744 |
} |
745 |
|
746 |
sub condvar { |
747 |
bless \my $flag, urxvt::anyevent::condvar:: |
748 |
} |
749 |
|
750 |
sub urxvt::anyevent::condvar::broadcast { |
751 |
${$_[0]}++; |
752 |
} |
753 |
|
754 |
sub urxvt::anyevent::condvar::wait { |
755 |
unless (${$_[0]}) { |
756 |
Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"; |
757 |
} |
758 |
} |
759 |
|
760 |
package urxvt::term; |
761 |
|
762 |
=head2 The C<urxvt::term> Class |
763 |
|
764 |
=over 4 |
765 |
|
766 |
=cut |
767 |
|
768 |
# find on_xxx subs in the package and register them |
769 |
# as hooks |
770 |
sub register_package { |
771 |
my ($self, $pkg, $argv) = @_; |
772 |
|
773 |
my $proxy = bless { |
774 |
_pkg => $pkg, |
775 |
argv => $argv, |
776 |
}, $pkg; |
777 |
Scalar::Util::weaken ($proxy->{term} = $self); |
778 |
|
779 |
$self->{_pkg}{$pkg} = $proxy; |
780 |
|
781 |
for my $name (@HOOKNAME) { |
782 |
if (my $ref = $pkg->can ("on_" . lc $name)) { |
783 |
$proxy->enable ($name => $ref); |
784 |
} |
785 |
} |
786 |
} |
787 |
|
788 |
=item $term->destroy |
789 |
|
790 |
Destroy the terminal object (close the window, free resources |
791 |
etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event |
792 |
watchers (timers, io watchers) are still active. |
793 |
|
794 |
=item $isset = $term->option ($optval[, $set]) |
795 |
|
796 |
Returns true if the option specified by C<$optval> is enabled, and |
797 |
optionally change it. All option values are stored by name in the hash |
798 |
C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. |
799 |
|
800 |
Here is a a likely non-exhaustive list of option names, please see the |
801 |
source file F</src/optinc.h> to see the actual list: |
802 |
|
803 |
borderLess console cursorBlink cursorUnderline hold iconic insecure |
804 |
intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage |
805 |
pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating |
806 |
scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer |
807 |
secondaryScreen secondaryScroll skipBuiltinGlyphs transparent |
808 |
tripleclickwords utmpInhibit visualBell |
809 |
|
810 |
=item $value = $term->resource ($name[, $newval]) |
811 |
|
812 |
Returns the current resource value associated with a given name and |
813 |
optionally sets a new value. Setting values is most useful in the C<init> |
814 |
hook. Unset resources are returned and accepted as C<undef>. |
815 |
|
816 |
The new value must be properly encoded to a suitable character encoding |
817 |
before passing it to this method. Similarly, the returned value may need |
818 |
to be converted from the used encoding to text. |
819 |
|
820 |
Resource names are as defined in F<src/rsinc.h>. Colours can be specified |
821 |
as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will |
822 |
likely change). |
823 |
|
824 |
Please note that resource strings will currently only be freed when the |
825 |
terminal is destroyed, so changing options frequently will eat memory. |
826 |
|
827 |
Here is a a likely non-exhaustive list of resource names, not all of which |
828 |
are supported in every build, please see the source file F</src/rsinc.h> |
829 |
to see the actual list: |
830 |
|
831 |
answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
832 |
borderLess color cursorBlink cursorUnderline cutchars delete_key |
833 |
display_name embed ext_bwidth fade font geometry hold iconName |
834 |
imFont imLocale inputMethod insecure int_bwidth intensityStyles |
835 |
italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier |
836 |
mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 |
837 |
perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd |
838 |
reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating |
839 |
scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput |
840 |
scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle |
841 |
shade term_name title transparent transparent_all tripleclickwords |
842 |
utmpInhibit visualBell |
843 |
|
844 |
=cut |
845 |
|
846 |
sub resource($$;$) { |
847 |
my ($self, $name) = (shift, shift); |
848 |
unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); |
849 |
&urxvt::term::_resource |
850 |
} |
851 |
|
852 |
=item $success = $term->parse_keysym ($keysym_spec, $command_string) |
853 |
|
854 |
Adds a keymap translation exactly as specified via a resource. See the |
855 |
C<keysym> resource in the @@RXVT_NAME@@(1) manpage. |
856 |
|
857 |
=item $rend = $term->rstyle ([$new_rstyle]) |
858 |
|
859 |
Return and optionally change the current rendition. Text that is output by |
860 |
the terminal application will use this style. |
861 |
|
862 |
=item ($row, $col) = $term->screen_cur ([$row, $col]) |
863 |
|
864 |
Return the current coordinates of the text cursor position and optionally |
865 |
set it (which is usually bad as applications don't expect that). |
866 |
|
867 |
=item ($row, $col) = $term->selection_mark ([$row, $col]) |
868 |
|
869 |
=item ($row, $col) = $term->selection_beg ([$row, $col]) |
870 |
|
871 |
=item ($row, $col) = $term->selection_end ([$row, $col]) |
872 |
|
873 |
Return the current values of the selection mark, begin or end positions, |
874 |
and optionally set them to new values. |
875 |
|
876 |
=item $success = $term->selection_grab ($eventtime) |
877 |
|
878 |
Try to request the primary selection from the server (for example, as set |
879 |
by the next method). |
880 |
|
881 |
=item $oldtext = $term->selection ([$newtext]) |
882 |
|
883 |
Return the current selection text and optionally replace it by C<$newtext>. |
884 |
|
885 |
=item $term->overlay_simple ($x, $y, $text) |
886 |
|
887 |
Create a simple multi-line overlay box. See the next method for details. |
888 |
|
889 |
=cut |
890 |
|
891 |
sub overlay_simple { |
892 |
my ($self, $x, $y, $text) = @_; |
893 |
|
894 |
my @lines = split /\n/, $text; |
895 |
|
896 |
my $w = List::Util::max map $self->strwidth ($_), @lines; |
897 |
|
898 |
my $overlay = $self->overlay ($x, $y, $w, scalar @lines); |
899 |
$overlay->set (0, $_, $lines[$_]) for 0.. $#lines; |
900 |
|
901 |
$overlay |
902 |
} |
903 |
|
904 |
=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) |
905 |
|
906 |
Create a new (empty) overlay at the given position with the given |
907 |
width/height. C<$rstyle> defines the initial rendition style |
908 |
(default: C<OVERLAY_RSTYLE>). |
909 |
|
910 |
If C<$border> is C<2> (default), then a decorative border will be put |
911 |
around the box. |
912 |
|
913 |
If either C<$x> or C<$y> is negative, then this is counted from the |
914 |
right/bottom side, respectively. |
915 |
|
916 |
This method returns an urxvt::overlay object. The overlay will be visible |
917 |
as long as the perl object is referenced. |
918 |
|
919 |
The methods currently supported on C<urxvt::overlay> objects are: |
920 |
|
921 |
=over 4 |
922 |
|
923 |
=item $overlay->set ($x, $y, $text, $rend) |
924 |
|
925 |
Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts |
926 |
text in rxvt-unicode's special encoding and an array of rendition values |
927 |
at a specific position inside the overlay. |
928 |
|
929 |
=item $overlay->hide |
930 |
|
931 |
If visible, hide the overlay, but do not destroy it. |
932 |
|
933 |
=item $overlay->show |
934 |
|
935 |
If hidden, display the overlay again. |
936 |
|
937 |
=back |
938 |
|
939 |
=item $popup = $term->popup ($event) |
940 |
|
941 |
Creates a new C<urxvt::popup> object that implements a popup menu. The |
942 |
C<$event> I<must> be the event causing the menu to pop up (a button event, |
943 |
currently). |
944 |
|
945 |
=cut |
946 |
|
947 |
sub popup { |
948 |
my ($self, $event) = @_; |
949 |
|
950 |
$self->grab ($event->{time}, 1) |
951 |
or return; |
952 |
|
953 |
my $popup = bless { |
954 |
term => $self, |
955 |
event => $event, |
956 |
}, urxvt::popup::; |
957 |
|
958 |
Scalar::Util::weaken $popup->{term}; |
959 |
|
960 |
$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy }; |
961 |
Scalar::Util::weaken $self->{_destroy}{$popup}; |
962 |
|
963 |
$popup |
964 |
} |
965 |
|
966 |
=item $cellwidth = $term->strwidth ($string) |
967 |
|
968 |
Returns the number of screen-cells this string would need. Correctly |
969 |
accounts for wide and combining characters. |
970 |
|
971 |
=item $octets = $term->locale_encode ($string) |
972 |
|
973 |
Convert the given text string into the corresponding locale encoding. |
974 |
|
975 |
=item $string = $term->locale_decode ($octets) |
976 |
|
977 |
Convert the given locale-encoded octets into a perl string. |
978 |
|
979 |
=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) |
980 |
|
981 |
XORs the rendition values in the given span with the provided value |
982 |
(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar |
983 |
to the selection. |
984 |
|
985 |
=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) |
986 |
|
987 |
Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing |
988 |
whitespace will additionally be xored with the C<$rstyle2>, which defaults |
989 |
to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines |
990 |
it instead. |
991 |
|
992 |
=item $term->scr_bell |
993 |
|
994 |
Ring the bell! |
995 |
|
996 |
=item $term->scr_add_lines ($string) |
997 |
|
998 |
Write the given text string to the screen, as if output by the application |
999 |
running inside the terminal. It may not contain command sequences (escape |
1000 |
codes), but is free to use line feeds, carriage returns and tabs. The |
1001 |
string is a normal text string, not in locale-dependent encoding. |
1002 |
|
1003 |
Normally its not a good idea to use this function, as programs might be |
1004 |
confused by changes in cursor position or scrolling. Its useful inside a |
1005 |
C<on_add_lines> hook, though. |
1006 |
|
1007 |
=item $term->cmd_parse ($octets) |
1008 |
|
1009 |
Similar to C<scr_add_lines>, but the argument must be in the |
1010 |
locale-specific encoding of the terminal and can contain command sequences |
1011 |
(escape codes) that will be interpreted. |
1012 |
|
1013 |
=item $term->tt_write ($octets) |
1014 |
|
1015 |
Write the octets given in C<$data> to the tty (i.e. as program input). To |
1016 |
pass characters instead of octets, you should convert your strings first |
1017 |
to the locale-specific encoding using C<< $term->locale_encode >>. |
1018 |
|
1019 |
=item $old_events = $term->pty_ev_events ([$new_events]) |
1020 |
|
1021 |
Replaces the event mask of the pty watcher by the given event mask. Can |
1022 |
be used to suppress input and output handling to the pty/tty. See the |
1023 |
description of C<< urxvt::timer->events >>. Make sure to always restore |
1024 |
the previous value. |
1025 |
|
1026 |
=item $windowid = $term->parent |
1027 |
|
1028 |
Return the window id of the toplevel window. |
1029 |
|
1030 |
=item $windowid = $term->vt |
1031 |
|
1032 |
Return the window id of the terminal window. |
1033 |
|
1034 |
=item $window_width = $term->width |
1035 |
|
1036 |
=item $window_height = $term->height |
1037 |
|
1038 |
=item $font_width = $term->fwidth |
1039 |
|
1040 |
=item $font_height = $term->fheight |
1041 |
|
1042 |
=item $font_ascent = $term->fbase |
1043 |
|
1044 |
=item $terminal_rows = $term->nrow |
1045 |
|
1046 |
=item $terminal_columns = $term->ncol |
1047 |
|
1048 |
=item $has_focus = $term->focus |
1049 |
|
1050 |
=item $is_mapped = $term->mapped |
1051 |
|
1052 |
=item $max_scrollback = $term->saveLines |
1053 |
|
1054 |
=item $nrow_plus_saveLines = $term->total_rows |
1055 |
|
1056 |
=item $lines_in_scrollback = $term->nsaved |
1057 |
|
1058 |
Return various integers describing terminal characteristics. |
1059 |
|
1060 |
=item $lc_ctype = $term->locale |
1061 |
|
1062 |
Returns the LC_CTYPE category string used by this rxvt-unicode. |
1063 |
|
1064 |
=item $x_display = $term->display_id |
1065 |
|
1066 |
Return the DISPLAY used by rxvt-unicode. |
1067 |
|
1068 |
=item $modifiermask = $term->ModLevel3Mask |
1069 |
|
1070 |
=item $modifiermask = $term->ModMetaMask |
1071 |
|
1072 |
=item $modifiermask = $term->ModNumLockMask |
1073 |
|
1074 |
Return the modifier masks corresponding to the "ISO Level 3 Shift" (often |
1075 |
AltGr), the meta key (often Alt) and the num lock key, if applicable. |
1076 |
|
1077 |
=item $view_start = $term->view_start ([$newvalue]) |
1078 |
|
1079 |
Returns the negative row number of the topmost line. Minimum value is |
1080 |
C<0>, which displays the normal terminal contents. Larger values scroll |
1081 |
this many lines into the scrollback buffer. |
1082 |
|
1083 |
=item $term->want_refresh |
1084 |
|
1085 |
Requests a screen refresh. At the next opportunity, rxvt-unicode will |
1086 |
compare the on-screen display with its stored representation. If they |
1087 |
differ, it redraws the differences. |
1088 |
|
1089 |
Used after changing terminal contents to display them. |
1090 |
|
1091 |
=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) |
1092 |
|
1093 |
Returns the text of the entire row with number C<$row_number>. Row C<0> |
1094 |
is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost |
1095 |
terminal line. The scrollback buffer starts at line C<-1> and extends to |
1096 |
line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line |
1097 |
is requested. |
1098 |
|
1099 |
If C<$new_text> is specified, it will replace characters in the current |
1100 |
line, starting at column C<$start_col> (default C<0>), which is useful |
1101 |
to replace only parts of a line. The font index in the rendition will |
1102 |
automatically be updated. |
1103 |
|
1104 |
C<$text> is in a special encoding: tabs and wide characters that use more |
1105 |
than one cell when displayed are padded with urxvt::NOCHAR characters |
1106 |
(C<chr 65535>). Characters with combining characters and other characters |
1107 |
that do not fit into the normal tetx encoding will be replaced with |
1108 |
characters in the private use area. |
1109 |
|
1110 |
You have to obey this encoding when changing text. The advantage is |
1111 |
that C<substr> and similar functions work on screen cells and not on |
1112 |
characters. |
1113 |
|
1114 |
The methods C<< $term->special_encode >> and C<< $term->special_decode >> |
1115 |
can be used to convert normal strings into this encoding and vice versa. |
1116 |
|
1117 |
=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]]) |
1118 |
|
1119 |
Like C<< $term->ROW_t >>, but returns an arrayref with rendition |
1120 |
bitsets. Rendition bitsets contain information about colour, font, font |
1121 |
styles and similar information. See also C<< $term->ROW_t >>. |
1122 |
|
1123 |
When setting rendition, the font mask will be ignored. |
1124 |
|
1125 |
See the section on RENDITION, above. |
1126 |
|
1127 |
=item $length = $term->ROW_l ($row_number[, $new_length]) |
1128 |
|
1129 |
Returns the number of screen cells that are in use ("the line |
1130 |
length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the |
1131 |
line is joined with the following one. |
1132 |
|
1133 |
=item $bool = $term->is_longer ($row_number) |
1134 |
|
1135 |
Returns true if the row is part of a multiple-row logical "line" (i.e. |
1136 |
joined with the following row), which means all characters are in use |
1137 |
and it is continued on the next row (and possibly a continuation of the |
1138 |
previous row(s)). |
1139 |
|
1140 |
=item $line = $term->line ($row_number) |
1141 |
|
1142 |
Create and return a new C<urxvt::line> object that stores information |
1143 |
about the logical line that row C<$row_number> is part of. It supports the |
1144 |
following methods: |
1145 |
|
1146 |
=over 4 |
1147 |
|
1148 |
=item $text = $line->t ([$new_text]) |
1149 |
|
1150 |
Returns or replaces the full text of the line, similar to C<ROW_t> |
1151 |
|
1152 |
=item $rend = $line->r ([$new_rend]) |
1153 |
|
1154 |
Returns or replaces the full rendition array of the line, similar to C<ROW_r> |
1155 |
|
1156 |
=item $length = $line->l |
1157 |
|
1158 |
Returns the length of the line in cells, similar to C<ROW_l>. |
1159 |
|
1160 |
=item $rownum = $line->beg |
1161 |
|
1162 |
=item $rownum = $line->end |
1163 |
|
1164 |
Return the row number of the first/last row of the line, respectively. |
1165 |
|
1166 |
=item $offset = $line->offset_of ($row, $col) |
1167 |
|
1168 |
Returns the character offset of the given row|col pair within the logical |
1169 |
line. |
1170 |
|
1171 |
=item ($row, $col) = $line->coord_of ($offset) |
1172 |
|
1173 |
Translates a string offset into terminal coordinates again. |
1174 |
|
1175 |
=back |
1176 |
|
1177 |
=cut |
1178 |
|
1179 |
sub line { |
1180 |
my ($self, $row) = @_; |
1181 |
|
1182 |
my $maxrow = $self->nrow - 1; |
1183 |
|
1184 |
my ($beg, $end) = ($row, $row); |
1185 |
|
1186 |
--$beg while $self->ROW_is_longer ($beg - 1); |
1187 |
++$end while $self->ROW_is_longer ($end) && $end < $maxrow; |
1188 |
|
1189 |
bless { |
1190 |
term => $self, |
1191 |
beg => $beg, |
1192 |
end => $end, |
1193 |
ncol => $self->ncol, |
1194 |
len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), |
1195 |
}, urxvt::line:: |
1196 |
} |
1197 |
|
1198 |
sub urxvt::line::t { |
1199 |
my ($self) = @_; |
1200 |
|
1201 |
if (@_ > 1) |
1202 |
{ |
1203 |
$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) |
1204 |
for $self->{beg} .. $self->{end}; |
1205 |
} |
1206 |
|
1207 |
defined wantarray && |
1208 |
substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), |
1209 |
0, $self->{len} |
1210 |
} |
1211 |
|
1212 |
sub urxvt::line::r { |
1213 |
my ($self) = @_; |
1214 |
|
1215 |
if (@_ > 1) |
1216 |
{ |
1217 |
$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) |
1218 |
for $self->{beg} .. $self->{end}; |
1219 |
} |
1220 |
|
1221 |
if (defined wantarray) { |
1222 |
my $rend = [ |
1223 |
map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} |
1224 |
]; |
1225 |
$#$rend = $self->{len} - 1; |
1226 |
return $rend; |
1227 |
} |
1228 |
|
1229 |
() |
1230 |
} |
1231 |
|
1232 |
sub urxvt::line::beg { $_[0]{beg} } |
1233 |
sub urxvt::line::end { $_[0]{end} } |
1234 |
sub urxvt::line::l { $_[0]{len} } |
1235 |
|
1236 |
sub urxvt::line::offset_of { |
1237 |
my ($self, $row, $col) = @_; |
1238 |
|
1239 |
($row - $self->{beg}) * $self->{ncol} + $col |
1240 |
} |
1241 |
|
1242 |
sub urxvt::line::coord_of { |
1243 |
my ($self, $offset) = @_; |
1244 |
|
1245 |
use integer; |
1246 |
|
1247 |
( |
1248 |
$offset / $self->{ncol} + $self->{beg}, |
1249 |
$offset % $self->{ncol} |
1250 |
) |
1251 |
} |
1252 |
|
1253 |
=item $text = $term->special_encode $string |
1254 |
|
1255 |
Converts a perl string into the special encoding used by rxvt-unicode, |
1256 |
where one character corresponds to one screen cell. See |
1257 |
C<< $term->ROW_t >> for details. |
1258 |
|
1259 |
=item $string = $term->special_decode $text |
1260 |
|
1261 |
Converts rxvt-unicodes text reprsentation into a perl string. See |
1262 |
C<< $term->ROW_t >> for details. |
1263 |
|
1264 |
=item $success = $term->grab_button ($button, $modifiermask) |
1265 |
|
1266 |
Registers a synchronous button grab. See the XGrabButton manpage. |
1267 |
|
1268 |
=item $success = $term->grab ($eventtime[, $sync]) |
1269 |
|
1270 |
Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or |
1271 |
synchronous (C<$sync> is true). Also remembers the grab timestampe. |
1272 |
|
1273 |
=item $term->allow_events_async |
1274 |
|
1275 |
Calls XAllowEvents with AsyncBoth for the most recent grab. |
1276 |
|
1277 |
=item $term->allow_events_sync |
1278 |
|
1279 |
Calls XAllowEvents with SyncBoth for the most recent grab. |
1280 |
|
1281 |
=item $term->allow_events_replay |
1282 |
|
1283 |
Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most |
1284 |
recent grab. |
1285 |
|
1286 |
=item $term->ungrab |
1287 |
|
1288 |
Calls XUngrab for the most recent grab. Is called automatically on |
1289 |
evaluation errors, as it is better to lose the grab in the error case as |
1290 |
the session. |
1291 |
|
1292 |
=back |
1293 |
|
1294 |
=cut |
1295 |
|
1296 |
package urxvt::popup; |
1297 |
|
1298 |
=head2 The C<urxvt::popup> Class |
1299 |
|
1300 |
=over 4 |
1301 |
|
1302 |
=cut |
1303 |
|
1304 |
sub add_item { |
1305 |
my ($self, $item) = @_; |
1306 |
|
1307 |
$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal}; |
1308 |
$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover}; |
1309 |
$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active}; |
1310 |
|
1311 |
$item->{render} ||= sub { $_[0]{text} }; |
1312 |
|
1313 |
push @{ $self->{item} }, $item; |
1314 |
} |
1315 |
|
1316 |
sub add_separator { |
1317 |
my ($self, $sep) = @_; |
1318 |
|
1319 |
$sep ||= "="; |
1320 |
|
1321 |
$self->add_item ({ |
1322 |
rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" }, |
1323 |
text => "", |
1324 |
render => sub { $sep x $self->{term}->ncol }, |
1325 |
activate => sub { }, |
1326 |
}); |
1327 |
} |
1328 |
|
1329 |
sub add_title { |
1330 |
my ($self, $title) = @_; |
1331 |
|
1332 |
$self->add_item ({ |
1333 |
rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" }, |
1334 |
text => $title, |
1335 |
activate => sub { }, |
1336 |
}); |
1337 |
} |
1338 |
|
1339 |
sub add_button { |
1340 |
my ($self, $text, $cb) = @_; |
1341 |
|
1342 |
$self->add_item ({ type => "button", text => $text, activate => $cb}); |
1343 |
} |
1344 |
|
1345 |
sub add_toggle { |
1346 |
my ($self, $text, $cb, $value) = @_; |
1347 |
|
1348 |
my $item; $item = { |
1349 |
type => "button", |
1350 |
text => " $text", |
1351 |
value => $value, |
1352 |
render => sub { ($_[0]{value} ? "* " : " ") . $text }, |
1353 |
activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, |
1354 |
}; |
1355 |
|
1356 |
$self->add_item ($item); |
1357 |
} |
1358 |
|
1359 |
sub show { |
1360 |
my ($self) = @_; |
1361 |
|
1362 |
local $urxvt::popup::self = $self; |
1363 |
|
1364 |
local $ENV{LC_ALL} = $self->{term}->locale; |
1365 |
|
1366 |
urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, |
1367 |
"--transient-for" => $self->{term}->parent, |
1368 |
"-display" => $self->{term}->display_id, |
1369 |
"-pe" => "urxvt-popup") |
1370 |
or die "unable to create popup window\n"; |
1371 |
} |
1372 |
|
1373 |
sub DESTROY { |
1374 |
my ($self) = @_; |
1375 |
|
1376 |
delete $self->{term}{_destroy}{$self}; |
1377 |
$self->{term}->ungrab; |
1378 |
} |
1379 |
|
1380 |
=head2 The C<urxvt::timer> Class |
1381 |
|
1382 |
This class implements timer watchers/events. Time is represented as a |
1383 |
fractional number of seconds since the epoch. Example: |
1384 |
|
1385 |
$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); |
1386 |
$term->{timer} = urxvt::timer |
1387 |
->new |
1388 |
->interval (1) |
1389 |
->cb (sub { |
1390 |
$term->{overlay}->set (0, 0, |
1391 |
sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); |
1392 |
}); |
1393 |
|
1394 |
=over 4 |
1395 |
|
1396 |
=item $timer = new urxvt::timer |
1397 |
|
1398 |
Create a new timer object in started state. It is scheduled to fire |
1399 |
immediately. |
1400 |
|
1401 |
=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) |
1402 |
|
1403 |
Set the callback to be called when the timer triggers. |
1404 |
|
1405 |
=item $tstamp = $timer->at |
1406 |
|
1407 |
Return the time this watcher will fire next. |
1408 |
|
1409 |
=item $timer = $timer->set ($tstamp) |
1410 |
|
1411 |
Set the time the event is generated to $tstamp. |
1412 |
|
1413 |
=item $timer = $timer->interval ($interval) |
1414 |
|
1415 |
Normally (and when C<$interval> is C<0>), the timer will automatically |
1416 |
stop after it has fired once. If C<$interval> is non-zero, then the timer |
1417 |
is automatically rescheduled at the given intervals. |
1418 |
|
1419 |
=item $timer = $timer->start |
1420 |
|
1421 |
Start the timer. |
1422 |
|
1423 |
=item $timer = $timer->start ($tstamp) |
1424 |
|
1425 |
Set the event trigger time to C<$tstamp> and start the timer. |
1426 |
|
1427 |
=item $timer = $timer->stop |
1428 |
|
1429 |
Stop the timer. |
1430 |
|
1431 |
=back |
1432 |
|
1433 |
=head2 The C<urxvt::iow> Class |
1434 |
|
1435 |
This class implements io watchers/events. Example: |
1436 |
|
1437 |
$term->{socket} = ... |
1438 |
$term->{iow} = urxvt::iow |
1439 |
->new |
1440 |
->fd (fileno $term->{socket}) |
1441 |
->events (urxvt::EVENT_READ) |
1442 |
->start |
1443 |
->cb (sub { |
1444 |
my ($iow, $revents) = @_; |
1445 |
# $revents must be 1 here, no need to check |
1446 |
sysread $term->{socket}, my $buf, 8192 |
1447 |
or end-of-file; |
1448 |
}); |
1449 |
|
1450 |
|
1451 |
=over 4 |
1452 |
|
1453 |
=item $iow = new urxvt::iow |
1454 |
|
1455 |
Create a new io watcher object in stopped state. |
1456 |
|
1457 |
=item $iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... }) |
1458 |
|
1459 |
Set the callback to be called when io events are triggered. C<$reventmask> |
1460 |
is a bitset as described in the C<events> method. |
1461 |
|
1462 |
=item $iow = $iow->fd ($fd) |
1463 |
|
1464 |
Set the filedescriptor (not handle) to watch. |
1465 |
|
1466 |
=item $iow = $iow->events ($eventmask) |
1467 |
|
1468 |
Set the event mask to watch. The only allowed values are |
1469 |
C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed |
1470 |
together, or C<urxvt::EVENT_NONE>. |
1471 |
|
1472 |
=item $iow = $iow->start |
1473 |
|
1474 |
Start watching for requested events on the given handle. |
1475 |
|
1476 |
=item $iow = $iow->stop |
1477 |
|
1478 |
Stop watching for events on the given filehandle. |
1479 |
|
1480 |
=back |
1481 |
|
1482 |
=head1 ENVIRONMENT |
1483 |
|
1484 |
=head2 URXVT_PERL_VERBOSITY |
1485 |
|
1486 |
This variable controls the verbosity level of the perl extension. Higher |
1487 |
numbers indicate more verbose output. |
1488 |
|
1489 |
=over 4 |
1490 |
|
1491 |
=item == 0 - fatal messages |
1492 |
|
1493 |
=item >= 3 - script loading and management |
1494 |
|
1495 |
=item >=10 - all events received |
1496 |
|
1497 |
=back |
1498 |
|
1499 |
=head1 AUTHOR |
1500 |
|
1501 |
Marc Lehmann <pcg@goof.com> |
1502 |
http://software.schmorp.de/pkg/rxvt-unicode |
1503 |
|
1504 |
=cut |
1505 |
|
1506 |
1 |