409 lines
10 KiB
Perl
Executable File
409 lines
10 KiB
Perl
Executable File
#! perl -w
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# Author: Bert Muennich
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# Website: http://www.github.com/muennich/urxvt-perls
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# Based on: http://www.jukie.net/~bart/blog/urxvt-url-yank
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# License: GPLv2
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# Use keyboard shortcuts to select URLs.
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# This should be used as a replacement for the default matcher extension,
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# it also makes URLs clickable with the middle mouse button.
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# Usage: put the following lines in your .Xdefaults/.Xresources:
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# URxvt.perl-ext-common: ...,url-select
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# URxvt.keysym.M-u: perl:url-select:select_next
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# Use Meta-u to activate URL selection mode, then use the following keys:
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# j/k: Select next downward/upward URL (also with arrow keys)
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# g/G: Select first/last URL (also with home/end key)
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# o/Return: Open selected URL in browser, Return: deactivate afterwards
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# y: Copy (yank) selected URL and deactivate selection mode
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# q/Escape: Deactivate URL selection mode
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# Options:
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# URxvt.url-select.autocopy: If true, selected URLs are copied to PRIMARY
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# URvxt.url-select.button: Mouse button to click-open URLs (default: 2)
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# URxvt.url-select.launcher: Browser/command to open selected URL with
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# URxvt.url-select.underline: If set to true, all URLs get underlined
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use strict;
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# The custom rendition bit to use for marking the cell as being underlined
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# by us so we can unset it again after a line has changed.
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use constant UNDERLINED => 1<<3; # arbitrarily chosen in hope of no collision
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sub on_start {
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my ($self) = @_;
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# read resource settings
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if ($self->x_resource('url-select.launcher')) {
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@{$self->{browser}} = split /\s+/, $self->x_resource('url-select.launcher');
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} else {
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@{$self->{browser}} = ('x-www-browser');
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}
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if ($self->x_resource('url-select.underline') eq 'true') {
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$self->enable(line_update => \&line_update);
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}
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if ($self->x_resource('url-select.autocopy') eq 'true') {
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$self->{autocopy} = 1;
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}
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$self->{state} = 0;
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for my $mod (split '', $self->x_resource("url-select.button") ||
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$self->x_resource("matcher.button") || 2) {
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if ($mod =~ /^\d+$/) {
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$self->{button} = $mod;
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} elsif ($mod eq "C") {
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$self->{state} |= urxvt::ControlMask;
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} elsif ($mod eq "S") {
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$self->{state} |= urxvt::ShiftMask;
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} elsif ($mod eq "M") {
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$self->{state} |= $self->ModMetaMask;
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} elsif ($mod ne "-" && $mod ne " ") {
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warn("invalid button/modifier in $self->{_name}<$self->{argv}[0]>: $mod\n");
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}
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}
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if ($self->x_resource('matcher.pattern')) {
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@{$self->{pattern}} = ($self->x_resource('matcher.pattern'));
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} elsif ($self->x_resource('matcher.pattern.0')) {
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my $current = 0;
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while (defined (my $res = $self->x_resource("matcher.pattern.$current"))) {
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$res = $self->locale_decode($res);
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utf8::encode $res;
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push @{$self->{pattern}}, qr($res)x;
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$current++;
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}
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} else {
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@{$self->{pattern}} = qr{
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(?:https?://|ftp://|news://|mailto:|file://|\bwww\.)
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[\w\-\@;\/?:&=%\$.+!*\x27,~#]*
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(
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\([\w\-\@;\/?:&=%\$.+!*\x27,~#]*\) # Allow a pair of matched parentheses
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| #
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[\w\-\@;\/?:&=%\$+*~] # exclude some trailing characters (heuristic)
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)+
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}x;
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}
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()
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}
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sub line_update {
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my ($self, $row) = @_;
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my $line = $self->line($row);
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my $text = $line->t;
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my $rend = $line->r;
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# clear all underlines that were set by us
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for (@$rend) {
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if (urxvt::GET_CUSTOM($_) & UNDERLINED) {
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$_ = urxvt::SET_CUSTOM($_, urxvt::GET_CUSTOM($_) & ~UNDERLINED) &
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~urxvt::RS_Uline;
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}
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}
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for my $pattern (@{$self->{pattern}}) {
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while ($text =~ /$pattern/g) {
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my $url = $&;
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my ($beg, $end) = ($-[0], $+[0] - 1);
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for (@{$rend}[$beg .. $end]) {
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unless ($_ & urxvt::RS_Uline) {
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$_ = urxvt::SET_CUSTOM($_, urxvt::GET_CUSTOM($_) | UNDERLINED);
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$_ |= urxvt::RS_Uline;
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}
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}
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}
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}
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$line->r($rend);
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()
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}
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sub on_action {
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my ($self, $action) = @_;
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on_user_command($self, "url-select:" . $action);
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}
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sub on_user_command {
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my ($self, $cmd) = @_;
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if ($cmd eq 'url-select:select_next') {
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if (not $self->{active}) {
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activate($self);
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}
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select_next($self, -1);
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}
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()
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}
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sub key_press {
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my ($self, $event, $keysym) = @_;
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my $char = chr($keysym);
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if ($keysym == 0xff1b || lc($char) eq 'q' ||
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(lc($char) eq 'c' && $event->{state} & urxvt::ControlMask)) {
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deactivate($self);
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} elsif ($keysym == 0xff0d || $char eq 'o' ||
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(lc($char) eq 'm' && $event->{state} & urxvt::ControlMask)) {
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$self->exec_async(@{$self->{browser}}, ${$self->{found}[$self->{n}]}[4]);
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deactivate($self) unless $char eq 'o';
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} elsif ($char eq 'y') {
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my $found = $self->{found}[$self->{n}];
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$self->selection_beg(${$found}[0], ${$found}[1]);
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$self->selection_end(${$found}[2], ${$found}[3]);
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$self->selection_make($event->{time});
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$self->selection_beg(1, 0);
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$self->selection_end(1, 0);
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deactivate($self);
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} elsif ($char eq 'k' || $keysym == 0xff52 || $keysym == 0xff51) {
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select_next($self, -1, $event);
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} elsif ($char eq 'j' || $keysym == 0xff54 || $keysym == 0xff53) {
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select_next($self, 1, $event);
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} elsif ($char eq 'g' || $keysym == 0xff50) {
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$self->{row} = $self->top_row - 1;
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delete $self->{found};
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select_next($self, 1, $event);
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} elsif ($char eq 'G' || $keysym == 0xff57) {
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$self->{row} = $self->nrow;
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delete $self->{found};
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select_next($self, -1, $event);
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}
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return 1;
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}
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sub on_button_press {
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my ($self, $event) = @_;
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my $mask = $self->ModLevel3Mask | $self->ModMetaMask |
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urxvt::ShiftMask | urxvt::ControlMask;
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if ($event->{button} == $self->{button} && ($event->{state} & $mask) == $self->{state}) {
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my $col = $event->{col};
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my $row = $event->{row};
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my $line = $self->line($row);
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my $text = $line->t;
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for my $pattern (@{$self->{pattern}}) {
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while ($text =~ /$pattern/g) {
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my ($url, $beg, $end) = ($&, $-[0], $+[0]);
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--$end if $url =~ s/["')]$//;
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if ($col >= $beg && $col <= $end) {
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$self->{button_pressed} = 1;
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$self->{button_col} = $col;
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$self->{button_row} = $row;
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$self->{button_url} = $url;
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return 1;
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}
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}
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}
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}
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()
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}
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sub on_button_release {
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my ($self, $event) = @_;
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if ($self->{button_pressed} && $event->{button} == $self->{button}) {
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my $col = $event->{col};
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my $row = $event->{row};
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$self->{button_pressed} = 0;
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if ($col == $self->{button_col} && $row == $self->{button_row}) {
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$self->exec_async(@{$self->{browser}}, $self->{button_url});
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return 1;
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}
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}
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()
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}
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sub select_next {
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# $dir < 0: up, > 0: down
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my ($self, $dir, $event) = @_;
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my $row = $self->{row};
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if (($dir < 0 && $self->{n} > 0) ||
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($dir > 0 && $self->{n} < $#{ $self->{found} })) {
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# another url on current line
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$self->{n} += $dir;
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hilight($self);
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if ($self->{autocopy}) {
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my $found = $self->{found}[$self->{n}];
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$self->selection_beg(${$found}[0], ${$found}[1]);
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$self->selection_end(${$found}[2], ${$found}[3]);
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$self->selection_make($event->{time});
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$self->selection_beg(1, 0);
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$self->selection_end(1, 0);
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}
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return;
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}
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while (($dir < 0 && $row > $self->top_row) ||
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($dir > 0 && $row < $self->nrow - 1)) {
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my $line = $self->line($row);
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$row = ($dir < 0 ? $line->beg : $line->end) + $dir;
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$line = $self->line($row);
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my $text = $line->t;
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for my $pattern (@{$self->{pattern}}) {
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if ($text =~ /$pattern/g) {
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delete $self->{found};
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do {
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my ($beg, $end) = ($-[0], $+[0]);
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push @{$self->{found}}, [$line->coord_of($beg),
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$line->coord_of($end), substr($text, $beg, $end - $beg)];
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} while ($text =~ /$pattern/g);
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$self->{row} = $row;
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$self->{n} = $dir < 0 ? $#{$self->{found}} : 0;
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hilight($self);
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if ($self->{autocopy}) {
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my $found = $self->{found}[$self->{n}];
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$self->selection_beg(${$found}[0], ${$found}[1]);
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$self->selection_end(${$found}[2], ${$found}[3]);
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$self->selection_make($event->{time});
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$self->selection_beg(1, 0);
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$self->selection_end(1, 0);
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}
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return;
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}
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}
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}
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deactivate($self) unless $self->{found};
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()
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}
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sub hilight {
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my ($self) = @_;
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if ($self->{found}) {
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if ($self->{row} < $self->view_start() ||
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$self->{row} >= $self->view_start() + $self->nrow) {
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# scroll selected url into visible area
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my $top = $self->{row} - ($self->nrow >> 1);
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$self->view_start($top < 0 ? $top : 0);
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}
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status_area($self);
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$self->want_refresh();
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}
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()
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}
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sub refresh {
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my ($self) = @_;
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if ($self->{found}) {
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if ($self->x_resource('highlightColor')) {
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$self->scr_xor_span(@{$self->{found}[$self->{n}]}[0 .. 3], urxvt::RS_Sel);
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} else {
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$self->scr_xor_span(@{$self->{found}[$self->{n}]}[0 .. 3], urxvt::RS_RVid);
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}
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}
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()
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}
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sub status_area {
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my ($self) = @_;
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my $row = $self->{row} < 0 ?
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$self->{row} - $self->top_row : abs($self->top_row) + $self->{row};
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my $text = sprintf("%d,%d ", $row + 1, $self->{n} + 1);
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if ($self->top_row == 0) {
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$text .= "All";
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} elsif ($self->view_start() == $self->top_row) {
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$text .= "Top";
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} elsif ($self->view_start() == 0) {
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$text .= "Bot";
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} else {
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$text .= sprintf("%2d%",
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($self->top_row - $self->view_start) * 100 / $self->top_row);
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}
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my $text_len = length($text);
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if ($self->{overlay_len} != $text_len) {
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delete $self->{overlay} if $self->{overlay};
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$self->{overlay} = $self->overlay(-1, -1, $text_len, 1,
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urxvt::OVERLAY_RSTYLE, 0);
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$self->{overlay_len} = $text_len;
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}
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$self->{overlay}->set(0, 0, $self->special_encode($text));
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$self->{overlay}->show();
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()
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}
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sub tt_write {
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return 1;
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}
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sub activate {
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my ($self) = @_;
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$self->{active} = 1;
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$self->{row} = $self->view_start() + $self->nrow;
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$self->{n} = 0;
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$self->{overlay_len} = 0;
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$self->{button_pressed} = 0;
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$self->{view_start} = $self->view_start();
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$self->{pty_ev_events} = $self->pty_ev_events(urxvt::EV_NONE);
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$self->enable(
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key_press => \&key_press,
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refresh_begin => \&refresh,
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refresh_end => \&refresh,
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tt_write => \&tt_write,
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);
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()
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}
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sub deactivate {
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my ($self) = @_;
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$self->disable("key_press", "refresh_begin", "refresh_end", "tt_write");
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$self->view_start($self->{view_start});
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$self->pty_ev_events($self->{pty_ev_events});
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delete $self->{overlay} if $self->{overlay};
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delete $self->{found} if $self->{found};
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$self->want_refresh();
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$self->{active} = 0;
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()
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}
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