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package UI::Dialog::Backend::Zenity; ############################################################################### # Copyright (C) 2004-2016 Kevin C. Krinke <kevin@krinke.ca> # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ############################################################################### use 5.006; use strict; use warnings; use Carp; use FileHandle; use Cwd qw( abs_path ); use UI::Dialog::Backend; use File::Slurp; use String::ShellQuote; BEGIN { use vars qw( $VERSION @ISA ); @ISA = qw( UI::Dialog::Backend ); $VERSION = '1.21'; } #:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: #: Constructor Method #: sub new { my $proto = shift(); my $class = ref($proto) || $proto; my $cfg = ((ref($_[0]) eq "HASH") ? $_[0] : (@_) ? { @_ } : {}); my $self = {}; bless($self, $class); $self->{'_state'} = {}; $self->{'_opts'} = {}; #: Dynamic path discovery... my $CFG_PATH = $cfg->{'PATH'}; if ($CFG_PATH) { if (ref($CFG_PATH) eq "ARRAY") { $self->{'PATHS'} = $CFG_PATH; } elsif ($CFG_PATH =~ m!:!) { $self->{'PATHS'} = [ split(/:/,$CFG_PATH) ]; } elsif (-d $CFG_PATH) { $self->{'PATHS'} = [ $CFG_PATH ]; } } elsif ($ENV{'PATH'}) { $self->{'PATHS'} = [ split(/:/,$ENV{'PATH'}) ]; } else { $self->{'PATHS'} = ''; } $self->{'_opts'}->{'literal'} = $cfg->{'literal'} || 0; $self->{'_opts'}->{'debug'} = $cfg->{'debug'} || undef(); $self->{'_opts'}->{'window-icon'} = $cfg->{'window-icon'} || undef(); $self->{'_opts'}->{'title'} = $cfg->{'title'} || undef(); $self->{'_opts'}->{'width'} = $cfg->{'width'} || 65; $self->{'_opts'}->{'height'} = $cfg->{'height'} || 10; $self->{'_opts'}->{'display'} = $cfg->{'display'} || undef(); $self->{'_opts'}->{'name'} = $cfg->{'name'} || undef(); $self->{'_opts'}->{'class'} = $cfg->{'class'} || undef(); $self->{'_opts'}->{'bin'} = $self->_find_bin('zenity'); $self->{'_opts'}->{'autoclear'} = $cfg->{'autoclear'} || 0; $self->{'_opts'}->{'clearbefore'} = $cfg->{'clearbefore'} || 0; $self->{'_opts'}->{'clearafter'} = $cfg->{'clearafter'} || 0; $self->{'_opts'}->{'beepbin'} = $cfg->{'beepbin'} || $self->_find_bin('beep') || '/usr/bin/beep'; $self->{'_opts'}->{'beepbefore'} = $cfg->{'beepbefore'} || 0; $self->{'_opts'}->{'beepafter'} = $cfg->{'beepafter'} || 0; $self->{'_opts'}->{'callbacks'} = $cfg->{'callbacks'} || undef(); $self->{'_opts'}->{'timeout'} = $cfg->{'timeout'} || 0; $self->{'_opts'}->{'wait'} = $cfg->{'wait'} || 0; unless (-x $self->{'_opts'}->{'bin'}) { croak("the zenity binary could not be found at: ".$self->{'_opts'}->{'bin'}); } $self->{'_opts'}->{'trust-input'} = $cfg->{'trust-input'} || 0; my $command = $self->{'_opts'}->{'bin'}." --version"; my $version = `$command 2>&1`; chomp( $version ); $self->{'ZENITY_VERSION'} = $version || '1'; $self->{'test_mode'} = $cfg->{'test_mode'} if exists $cfg->{'test_mode'}; $self->{'test_mode_result'} = ''; return($self); } #:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: #: Private Methods #: my $SIG_CODE = {}; sub _del_gauge { #: this is beyond self... my $CODE = $SIG_CODE->{$$}; unless (not ref($CODE)) { delete($CODE->{'_GAUGE'}); $CODE->rv('1'); $CODE->rs('null'); $CODE->ra('null'); $SIG_CODE->{$$} = ""; } } sub append_format_base { my ($self,$args,$fmt) = @_; $ENV{'ZENITY_CANCEL'} = '1'; $ENV{'ZENITY_ERROR'} = '254'; $ENV{'ZENITY_ESC'} = '255'; $ENV{'ZENITY_EXTRA'} = '3'; $ENV{'ZENITY_HELP'} = '2'; $ENV{'ZENITY_OK'} = '0'; $fmt = $self->append_format_check($args,$fmt,'window-icon','--window-icon {{window-icon}}'); $fmt = $self->append_format_check($args,$fmt,'width','--width {{width}}'); $fmt = $self->append_format_check($args,$fmt,'height','--height {{height}}'); $fmt = $self->append_format_check($args,$fmt,'display','--display {{display}}'); $fmt = $self->append_format_check($args,$fmt,'name','--name {{name}}'); $fmt = $self->append_format_check($args,$fmt,'class','--class {{class}}'); return $fmt; } sub _is_bad_version { # my $self = shift(); # my ($d_maj, $d_min, $d_mac) = ( 1, 4, 0 ); # my ($z_maj, $z_min, $z_mac) = ( 0, 0, 0 ); # my $zenity_version = $self->{'ZENITY_VERSION'} || '0.0.0'; # if ( $zenity_version =~ m!^(\d+)\.(\d+)\.(\d+)$! ) { # ($z_maj, $z_min, $z_mac) = ( $1, $2, $3 ); # } # if ( ( $d_maj < $z_maj ) || # ( $d_maj == $z_maj && $d_min < $z_min ) || # ( $d_maj == $z_maj && $d_min == $z_min && $d_mac < $z_mac ) # ) { # return(0); # } return(1); } #:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: #: Override Inherited Methods #: # May want to override Backend::perform_command(). Not sure. #: run command and return the rv and any text output from stderr sub perform_command { my $self = $_[0]; my $cmnd = $_[1]; if ($self->is_unit_test_mode()) { $self->{'test_mode_result'} = $cmnd; return (0,'test_mode_result'); } $self->_debug("perform_command: ".$cmnd.";"); my $null_dev = $^O =~ /win32/i ? 'NUL:' : '/dev/null'; my $tmp_stderr = $self->gen_tempfile_name(); system($cmnd." 2> $null_dev > ".$tmp_stderr); my $rv = $? >> 8; my $text = read_file($tmp_stderr); unlink($tmp_stderr) if -f $tmp_stderr; $self->_debug("perform_command: stderr=".shell_quote($text),2); return ($rv,$text); } #:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: #: Public Methods #: #:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #: Ask a binary question (Yes/No) sub question { my $self = shift(); my $caller = (caller(1))[3] || 'main'; $caller = ($caller =~ /^UI\:\:Dialog\:\:Backend\:\:/) ? ((caller(2))[3]||'main') : $caller; if ($_[0] && $_[0] eq 'caller') { shift(); $caller = shift(); } my $args = $self->_pre($caller,@_); my $fmt = $self->prepare_format($args); $fmt = $self->append_format_base($args,$fmt); $fmt = $self->append_format($fmt,'--question --text {{text}}'); my $command = $self->prepare_command ( $args, $fmt, text => $self->make_kvt($args,$args->{'text'}), ); my $rv = $self->command_state($command); if ($rv && $rv >= 1) { $self->ra("NO"); $self->rs("NO"); } else { $self->ra("YES"); $self->rs("YES"); } $self->_post($args); return($rv == 0 ? 1 : 0); } #: Zenity doesn't support alternation of the buttons like gdialog et al. #: so here we just wrap for compliance. sub yesno { my $self = shift(); return($self->question('caller',((caller(1))[3]||'main'),@_)); } sub noyes { my $self = shift(); return($self->question('caller',((caller(1))[3]||'main'),@_)); } #:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #: Text entry sub entry { my $self = shift(); my $caller = (caller(1))[3] || 'main'; $caller = ($caller =~ /^UI\:\:Dialog\:\:Backend\:\:/) ? ((caller(2))[3]||'main') : $caller; if ($_[0] && $_[0] eq 'caller') { shift(); $caller = shift(); } my $args = $self->_pre($caller,@_); $args->{'entry'} ||= ($args->{'init'} || $args->{'entry'}); my $fmt = $self->prepare_format($args); $fmt = $self->append_format_base($args,$fmt); $fmt = $self->append_format($fmt,'--entry'); $fmt = $self->append_format_check($args,$fmt,'hide-text','--hide-text'); $fmt = $self->append_format_check($args,$fmt,'entry','--entry-text {{entry}}'); $fmt = $self->append_format($fmt,'--text {{text}}'); my $command = $self->prepare_command ( $args, $fmt, text => $self->make_kvt($args,$args->{'text'}), ); my ($rv,$text) = $self->command_string($command); $self->_post($args); return($rv == 0 ? $text : 0); } sub inputbox { my $self = shift(); return($self->entry('caller',((caller(1))[3]||'main'),@_)); } sub password { my $self = shift(); return($self->entry('caller',((caller(1))[3]||'main'),@_,'hide-text',1)); } #:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #: Text box sub info { my $self = shift(); my $caller = (caller(1))[3] || 'main'; $caller = ($caller =~ /^UI\:\:Dialog\:\:Backend\:\:/) ? ((caller(2))[3]||'main') : $caller; if ($_[0] && $_[0] eq 'caller') { shift(); $caller = shift(); } my $args = $self->_pre($caller,@_); my $fmt = $self->prepare_format($args); $fmt = $self->append_format_base($args,$fmt); if ($args->{'error'}) { $fmt = $self->append_format($fmt,'--error'); } elsif ($args->{'warning'}) { $fmt = $self->append_format($fmt,'--warning'); } else { $fmt = $self->append_format($fmt,'--info'); } $fmt = $self->append_format($fmt,'--text {{text}}'); my $command = $self->prepare_command ( $args, $fmt, text => $self->make_kvt($args,$args->{'text'}), ); my $rv = $self->command_state($command); $self->_post($args); return($rv == 0 ? 1 : 0); } sub infobox { my $self = shift(); return($self->info('caller',((caller(1))[3]||'main'),@_)); } sub msgbox { my $self = shift(); return($self->info('caller',((caller(1))[3]||'main'),@_)); } sub error { my $self = shift(); return($self->info('caller',((caller(1))[3]||'main'),@_,'error',1)); } sub warning { my $self = shift(); return($self->info('caller',((caller(1))[3]||'main'),@_,'warning',1)); } #:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #: File box sub text_info { my $self = shift(); my $caller = (caller(1))[3] || 'main'; $caller = ($caller =~ /^UI\:\:Dialog\:\:Backend\:\:/) ? ((caller(2))[3]||'main') : $caller; if ($_[0] && $_[0] eq 'caller') { shift(); $caller = shift(); } my $args = $self->_pre($caller,@_); my $filename = $args->{'path'} || $args->{'filename'}; my $fmt = $self->prepare_format($args); $fmt = $self->append_format_base($args,$fmt); $fmt = $self->append_format($fmt,'--text-info'); $fmt = $self->append_format_check($args,$fmt,'editable','--editable'); $fmt = $self->append_format($fmt,'--filename {{filename}}'); my $command = $self->prepare_command ( $args, $fmt, text => $self->make_kvt($args,$args->{'text'}), filename => $self->make_kvl($args,$filename) ); my ($rv,$text) = $self->command_string($command); $self->_post($args); return($rv == 0 ? $text : 0); } sub textbox { my $self = shift(); return($self->text_info('caller',((caller(1))[3]||'main'),@_)); } sub editbox { my $self = shift(); return($self->text_info('caller',((caller(1))[3]||'main'),@_,'editable',1)); } #:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #: Lists sub list { my $self = shift(); my $caller = (caller(1))[3] || 'main'; $caller = ($caller =~ /^UI\:\:Dialog\:\:Backend\:\:/) ? ((caller(2))[3]||'main') : $caller; if ($_[0] && $_[0] eq 'caller') { shift(); $caller = shift(); } my $args = $self->_pre($caller,@_); my $fmt = $self->prepare_format($args); $fmt = $self->append_format_base($args,$fmt); $fmt = $self->append_format($fmt,'--list'); $args->{'checklist'} ||= 0; $args->{'radiolist'} ||= 0; if ($args->{'checklist'}) { $fmt = $self->append_format($fmt,'--checklist'); } elsif ($args->{'radiolist'}) { $fmt = $self->append_format($fmt,'--radiolist'); } $fmt = $self->append_format($fmt,"--separator '\\n'"); if (ref($args->{'list'}) eq "ARRAY") { if ($args->{'checklist'}||$args->{'radiolist'}) { $fmt = $self->append_format($fmt,'--column " " --column " " --column " "'); } else { $fmt = $self->append_format($fmt,'--column " " --column " "'); } while (@{$args->{'list'}}) { my $item = shift(@{$args->{'list'}}); $self->clean_format($args->{'trust-input'},\$item); my $info = shift(@{$args->{'list'}}); if (ref($info) eq "ARRAY") { $self->clean_format($args->{'trust-input'},\$info->[0]); $fmt = $self->append_format($fmt,'"'.(($info->[1]) ? 'TRUE' : 'FALSE').'"'); $fmt = $self->append_format($fmt,'"'.$item.'"'); $fmt = $self->append_format($fmt,'"'.$info->[0].'"'); } else { $self->clean_format($args->{'trust-input'},\$info); $fmt = $self->append_format($fmt,'"'.$item.'"'); $fmt = $self->append_format($fmt,'"'.$info.'"'); } } } else { croak("Programmer error. list argument missing or not an array.") } my $command = $self->prepare_command( $args, $fmt ); if ($args->{'checklist'}) { my ($rv,$selected) = $self->command_array($command); $self->_post($args); return($rv == 0 ? $selected : 0) unless defined wantarray and wantarray; return($rv == 0 ? $self->ra() : (0)); } my ($rv,$selected) = $self->command_string($command); $self->_post($args); return($rv == 0 ? $selected : 0); } sub menu { my $self = shift(); return($self->list('caller',((caller(1))[3]||'main'),@_)); } sub checklist { my $self = shift(); return($self->list('caller',((caller(1))[3]||'main'),@_,'checklist',1)); } sub radiolist { my $self = shift(); return($self->list('caller',((caller(1))[3]||'main'),@_,'radiolist',1)); } #:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #: file select sub fselect { my $self = shift(); my $caller = (caller(1))[3] || 'main'; $caller = ($caller =~ /^UI\:\:Dialog\:\:Backend\:\:/) ? ((caller(2))[3]||'main') : $caller; if ($_[0] && $_[0] eq 'caller') { shift(); $caller = shift(); } my $args = $self->_pre($caller,@_); my $filename = $args->{'path'} || $args->{'filename'} || abs_path(); $args->{'path'} = $filename; $args->{'path'} = (-d $args->{'path'}) ? $args->{'path'}."/" : $args->{'path'}; $args->{'path'} =~ s!/+!/!g; my $fmt = $self->prepare_format($args); $fmt = $self->append_format_base($args,$fmt); $fmt = $self->append_format($fmt,'--file-selection'); $fmt = $self->append_format($fmt,'--filename {{filename}}'); my $command = $self->prepare_command ( $args, $fmt, filename => $self->make_kvl($args,$filename) ); $self->_debug("fselect: ".$args->{'path'}); my ($rv,$file) = $self->command_string($command); $self->_post($args); return($rv == 0 ? $file : 0); } #:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #: directory select sub dselect { my $self = shift(); my $caller = (caller(1))[3] || 'main'; $caller = ($caller =~ /^UI\:\:Dialog\:\:Backend\:\:/) ? ((caller(2))[3]||'main') : $caller; if ($_[0] && $_[0] eq 'caller') { shift(); $caller = shift(); } my $args = $self->_pre($caller,@_); my $filename = $args->{'path'} || $args->{'filename'} || abs_path(); $args->{'path'} = $filename; $args->{'path'} = (-d $args->{'path'}) ? $args->{'path'}."/" : $args->{'path'}; $args->{'path'} =~ s!/+!/!g; my $fmt = $self->prepare_format($args); $fmt = $self->append_format_base($args,$fmt); $fmt = $self->append_format($fmt,'--file-selection --directory'); $fmt = $self->append_format($fmt,'--filename {{filename}}'); my $command = $self->prepare_command ( $args, $fmt, filename => $self->make_kvl($args,$filename) ); $self->_debug("fselect: ".$args->{'path'}); my ($rv,$file) = $self->command_string($command); $self->_post($args); return($rv == 0 ? $file : 0); } #:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #: calendar sub calendar { my $self = shift(); my $caller = (caller(1))[3] || 'main'; $caller = ($caller =~ /^UI\:\:Dialog\:\:Backend\:\:/) ? ((caller(2))[3]||'main') : $caller; if ($_[0] && $_[0] eq 'caller') { shift(); $caller = shift(); } my $args = $self->_pre($caller,@_); my $fmt = $self->prepare_format($args); $fmt = $self->append_format_base($args,$fmt); $fmt = $self->append_format($fmt,'--calendar'); $fmt = $self->append_format_check($args,$fmt,'text','--text {{text}}'); $fmt = $self->append_format_check($args,$fmt,'date-format','--date-format {{date-format}}'); $fmt = $self->append_format_check($args,$fmt,'day','--day {{day}}'); $fmt = $self->append_format_check($args,$fmt,'month','--month {{month}}'); $fmt = $self->append_format_check($args,$fmt,'year','--year {{year}}'); my $command = $self->prepare_command ( $args, $fmt, text => $self->make_kvt($args,$args->{'text'}), ); my ($rv,$date) = $self->command_string($command); if ($rv == 0) { $self->ra(split(m!/!,$date)); } $self->_post($args); return($rv == 0 ? $date : 0) unless defined wantarray and wantarray; return($rv == 0 ? $self->ra() : (0,0,0)); } #:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #: progress sub gauge_start { my $self = shift(); my $caller = (caller(1))[3] || 'main'; $caller = ($caller =~ /^UI\:\:Dialog\:\:Backend\:\:/) ? ((caller(2))[3]||'main') : $caller; if ($_[0] && $_[0] eq 'caller') { shift(); $caller = shift(); } my $args = $self->_pre($caller,@_); $self->{'_GAUGE'} ||= {}; $self->{'_GAUGE'}->{'ARGS'} = $args; if (defined $self->{'_GAUGE'}->{'FH'}) { $self->rv(129); $self->_post($args); return(0); } my $fmt = $self->prepare_format($args); $fmt = $self->append_format_base($args,$fmt); $fmt = $self->append_format($fmt,'--progress'); $fmt = $self->append_format_check($args,$fmt,'pulsate','--pulsate'); $fmt = $self->append_format_check($args,$fmt,'text','--text {{text}}'); $fmt = $self->append_format($fmt,'--percentage {{percentage}}'); my $command = $self->prepare_command ( $args, $fmt, text => $self->make_kvt($args,$args->{'text'}), percentage => $self->make_kvl($args,$args->{'percentage'}||'0'), ); $self->{'_GAUGE'}->{'PERCENT'} = ($args->{'percentage'} || '0'); $self->{'_GAUGE'}->{'FH'} = new FileHandle; $self->{'_GAUGE'}->{'FH'}->open("| $command"); my $rv = ($? >> 8); $self->{'_GAUGE'}->{'FH'}->autoflush(1); $self->rv($rv||'null'); $self->ra('null'); $self->rs('null'); return($rv == 0 ? 1 : 0); } sub gauge_inc { my $self = $_[0]; my $incr = $_[1] || 1; return(0) unless defined $self->{'_GAUGE'}->{'FH'}; my $fh = $self->{'_GAUGE'}->{'FH'}; $self->{'_GAUGE'}->{'PERCENT'} += $incr; $SIG_CODE->{$$} = $self; local $SIG{'PIPE'} = \&_del_gauge; print $fh $self->{'_GAUGE'}->{'PERCENT'}."\n"; return(((defined $self->{'_GAUGE'}->{'FH'}) ? 1 : 0)); } sub gauge_dec { my $self = $_[0]; my $decr = $_[1] || 1; return(0) unless defined $self->{'_GAUGE'}->{'FH'}; my $fh = $self->{'_GAUGE'}->{'FH'}; $self->{'_GAUGE'}->{'PERCENT'} -= $decr; $SIG_CODE->{$$} = $self; local $SIG{'PIPE'} = \&_del_gauge; print $fh $self->{'_GAUGE'}->{'PERCENT'}."\n"; return(((defined $self->{'_GAUGE'}->{'FH'}) ? 1 : 0)); } sub gauge_set { my $self = $_[0]; my $perc = $_[1] || $self->{'_GAUGE'}->{'PERCENT'} || 1; return(0) unless $self->{'_GAUGE'}->{'FH'}; my $fh = $self->{'_GAUGE'}->{'FH'}; $self->{'_GAUGE'}->{'PERCENT'} = $perc; $SIG_CODE->{$$} = $self; local $SIG{'PIPE'} = \&_del_gauge; print $fh $self->{'_GAUGE'}->{'PERCENT'}."\n"; return(((defined $self->{'_GAUGE'}->{'FH'}) ? 1 : 0)); } #: Textual updates are not supported by Zenity... sub gauge_text { my $self = $_[0]; my $mesg = $_[1] || return(0); my $fh = $self->{'_GAUGE'}; return(0) unless $self->{'_GAUGE'}; # $SIG_CODE->{$$} = $self; local $SIG{'PIPE'} = \&_del_gauge; # print $fh "\nXXX\n\n".$mesg."\n\nXXX\n\n".$self->{'_GAUGE'}->{'PERCENT'}."\n"; return(((defined $self->{'_GAUGE'}) ? 1 : 0)); } sub gauge_stop { my $self = $_[0]; my $args = $self->{'_GUAGE'}->{'ARGS'} || $self->_merge_attrs( title => 'gauge_stop', 'caller' => ((caller(1))[3]||'main') ); unless ($self->{'_GAUGE'}->{'FH'}) { $self->rv(129); $self->_post($args); return(0); } my $fh = $self->{'_GAUGE'}->{'FH'}; $SIG_CODE->{$$} = $self; local $SIG{'PIPE'} = \&_del_gauge; $self->{'_GAUGE'}->{'FH'}->close(); delete($self->{'_GAUGE'}->{'ARGS'}); delete($self->{'_GAUGE'}->{'FH'}); delete($self->{'_GAUGE'}->{'PERCENT'}); delete($self->{'_GAUGE'}); $self->rv('null'); $self->rs('null'); $self->ra('null'); $self->_post($args); return(1); } 1;
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