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#! perl
#:META:RESOURCE:url-launcher:string:shell command to use
=head1 NAME
selection-popup (enabled by default)
=head1 DESCRIPTION
Binds a popup menu to Ctrl-Button3 that lets you paste the X
selections and either modify or use the internal selection text in
various ways (such as uri unescaping, perl evaluation, web-browser
starting etc.), depending on content.
Other extensions can extend this popup menu by pushing a code reference
onto C<< @{ $term->{selection_popup_hook} } >>, which gets called whenever
the popup is being displayed.
Its sole argument is the popup menu, which can be modified. The selection
is in C<$_>, which can be used to decide whether to add something or not.
It should either return nothing or a string and a code reference. The
string will be used as button text and the code reference will be called
when the button gets activated and should transform C<$_>.
The following will add an entry C<a to b> that transforms all C<a>s in
the selection to C<b>s, but only if the selection currently contains any
C<a>s:
push @{ $self->{term}{selection_popup_hook} }, sub {
/a/ ? ("a to b" => sub { s/a/b/g }
: ()
};
=cut
sub msg {
my ($self, $msg) = @_;
my $overlay = $self->overlay (0, 0, $self->strwidth ($msg), 1);
$overlay->set (0, 0, $msg);
$self->{timer} = urxvt::timer->new->after (1)->cb (sub {
delete $self->{timer};
undef $overlay;
});
}
sub on_start {
my ($self) = @_;
$self->{browser} = $self->x_resource ("url-launcher") || "sensible-browser";
$self->grab_button (3, urxvt::ControlMask);
()
}
sub on_button_press {
my ($self, $event) = @_;
if ($event->{button} == 3 && $event->{state} & urxvt::ControlMask) {
my $popup = $self->popup ($event)
or return 1;
$popup->add_title ("Selection");
my $text = $self->selection;
my $title = $text;
$title =~ s/[\x00-\x1f\x80-\x9f]/·/g;
substr $title, 40, -1, "..." if 40 < length $title;
$popup->add_title ($title);
$popup->add_separator;
my $add_button = sub {
my ($title, $cb) = @_;
$popup->add_button ($title => sub {
for ($text) {
my $orig = $_;
$cb->();
if ($orig ne $_) {
$self->selection ($_);
s/[\x00-\x1f\x80-\x9f]/·/g;
$self->msg ($self->special_encode ($_));
}
}
});
};
for ($text) {
/\n/
and $add_button->("paste primary selection" => sub { $self->selection_request (urxvt::CurrentTime, 1) });
/./
and $add_button->("paste clipboard selection" => sub { $self->selection_request (urxvt::CurrentTime, 3) });
/./
and $add_button->("copy selection to clipboard" => sub { $self->selection ($self->selection, 1);
$self->selection_grab (urxvt::CurrentTime, 1) });
/./
and $add_button->("newlines to spaces" => sub { y/\n/ / });
/./
and $add_button->("rot13" => sub { y/A-Za-z/N-ZA-Mn-za-m/ });
/./
and $add_button->("eval perl expression" => sub { my $self = $self; no warnings; $_ = eval $_; $_ = "$@" if $@ });
/./
and $add_button->((sprintf "to unicode hex index (%x)", ord) => sub { $_ = sprintf "%x", ord });
/(\S+):(\d+):?/
and $add_button->("vi-commands to load '$1'" => sub { s/^(\S+):(\d+):?$/\x1b:e $1\x0d:$2\x0d/ });
/%[0-9a-fA-F]{2}/ && !/%[^0-9a-fA-F]/ && !/%.[^0-9a-fA-F]/
and $add_button->("uri unescape" => sub { s/%([0-9a-fA-F]{2})/chr hex $1/ge });
/[\\"'\ \t|&;<>()]/
and $add_button->("shell quote" => sub { $_ = "\Q$_" });
/^(https?|ftp|telnet|irc|news):\//
and $add_button->("run $self->{browser}" => sub { $self->exec_async ($self->{browser}, $_) });
for my $hook (@{ $self->{term}{selection_popup_hook} || [] }) {
if (my ($title, $cb) = $hook->($popup)) {
$add_button->($title, $cb);
}
}
if (/^\s*((?:0x)?\d+)\s*$/) {
$popup->add_title (sprintf "%20s", eval $1);
$popup->add_title (sprintf "%20s", sprintf "0x%x", eval $1);
$popup->add_title (sprintf "%20s", sprintf "0%o", eval $1);
}
}
$popup->show;
return 1;
}
()
}
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