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Diffstat (limited to 'src/perl/selection-popup')
| -rw-r--r-- | src/perl/selection-popup | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/perl/selection-popup b/src/perl/selection-popup new file mode 100644 index 0000000..07811d8 --- /dev/null +++ b/src/perl/selection-popup @@ -0,0 +1,147 @@ +#! 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; + } + + () +} + |