.i3/i3-dmenu-desktop

Sun, 08 May 2016 02:32:09 -0400

author
Meredith Howard <mhoward@roomag.org>
date
Sun, 08 May 2016 02:32:09 -0400
changeset 301
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parent 267
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permissions
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add f5 sync-mailbox

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1 #!/usr/bin/env perl
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2 # vim:ts=4:sw=4:expandtab
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3 #
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4 # © 2012-2013 Michael Stapelberg
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5 #
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6 # No dependencies except for perl ≥ v5.10
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7
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8 use strict;
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9 use warnings qw(FATAL utf8);
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10 use v5.10;
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d125935c7197 use dmenu.xft
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11 use utf8;
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12
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13 my $dmenu_cmd;
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14 my @entry_types;
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15
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16 BEGIN {
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d125935c7197 use dmenu.xft
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17 $dmenu_cmd = 'dmenu.xft -b -i -fn "Droid Sans-10" -p ] -nf \#CCC -nb \#555';
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18
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19 use Getopt::Long;
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20 my $result = GetOptions(
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21 'dmenu=s' => \$dmenu_cmd,
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22 'entry-type=s' => \@entry_types,
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23 'version' => sub {
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24 say "dmenu-desktop 1.5~custom~mhoward";
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25 exit 0;
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26 },
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27 'help' => sub {
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28 pod2usage(-exitval => 0);
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29 });
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30
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31 die "Could not parse command line options" unless $result;
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32
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33 # if j4-dmenu-desktop is available, let it take over asap
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34 # https://github.com/enkore/j4-dmenu-desktop
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35 if ( -x $ENV{HOME} . '/.i3/j4-dmenu-desktop' ){
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36 exec $ENV{HOME} . "/.i3/j4-dmenu-desktop --dmenu='${dmenu_cmd}'";
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37 }
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38
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39 #otherwise we do the same thing as stock i3-dmenu-desktop, but cache the result
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40 }
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41
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42 use Data::Dumper;
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43 use IPC::Open2;
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44 use POSIX qw(locale_h);
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45 use File::Find;
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46 use File::Basename qw(basename);
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47 use File::Temp qw(tempfile);
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48 use Pod::Usage;
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49 use utf8;
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50 use open ':encoding(UTF-8)';
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51
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52 use Storable qw( nstore retrieve );
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53
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54 binmode STDOUT, ':utf8';
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55 binmode STDERR, ':utf8';
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56
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57 # reads in a whole file
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58 sub slurp {
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59 my ($filename) = @_;
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60 open(my $fh, '<', $filename) or die "$!";
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61 local $/;
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62 my $result;
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63 eval {
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64 $result = <$fh>;
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65 };
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66 if ($@) {
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67 warn "Could not read $filename: $@";
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68 return undef;
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69 } else {
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70 return $result;
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71 }
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72 }
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73
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74 my ( %apps, %choices );
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75 my $cachefile = $ENV{HOME} . '/.cache/i3-dmenu-desktop.bin';
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76
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77 if ( -r $cachefile ){
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78 my @cache = @{ retrieve( $cachefile ) };
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79 %apps = %{ shift @cache };
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80 %choices = %{ shift @cache };
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81 }
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82 else {
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83
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84 # Filter entry types and set default type(s) if none selected
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85 my @valid_types = ('name', 'command', 'filename');
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86 @entry_types = grep { $_ ~~ @valid_types } @entry_types;
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87 @entry_types = ('name', 'command') unless @entry_types;
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88
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89 # ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
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90 # ┃ Convert LC_MESSAGES into an ordered list of suffixes to search for in the ┃
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91 # ┃ .desktop files (e.g. “Name[de_DE@euro]” for LC_MESSAGES=de_DE.UTF-8@euro ┃
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92 # ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
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93
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94 # For details on how the transformation of LC_MESSAGES to a list of keys that
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95 # should be looked up works, refer to “Localized values for keys” of the
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96 # “Desktop Entry Specification”:
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97 # http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s04.html
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98 my $lc_messages = setlocale(LC_MESSAGES);
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99
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100 # Ignore the encoding (e.g. .UTF-8)
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101 $lc_messages =~ s/\.[^@]+//g;
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102
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103 my @suffixes = ($lc_messages);
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104
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105 # _COUNTRY and @MODIFIER are present
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106 if ($lc_messages =~ /_[^@]+@/) {
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107 my $no_modifier = $lc_messages;
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108 $no_modifier =~ s/@.*//g;
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109 push @suffixes, $no_modifier;
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110
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111 my $no_country = $lc_messages;
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112 $no_country =~ s/_[^@]+//g;
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113 push @suffixes, $no_country;
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114 }
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115
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116 # Strip _COUNTRY and @MODIFIER if present
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117 $lc_messages =~ s/[_@].*//g;
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118 push @suffixes, $lc_messages;
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119
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120 # ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
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121 # ┃ Read all .desktop files and store the values in which we are interested. ┃
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122 # ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
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123
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124 my %desktops;
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125 # See http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html#variables
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126 my $xdg_data_home = $ENV{XDG_DATA_HOME};
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127 $xdg_data_home = $ENV{HOME} . '/.local/share' if
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128 !defined($xdg_data_home) ||
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129 $xdg_data_home eq '' ||
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130 ! -d $xdg_data_home;
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131
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132 my $xdg_data_dirs = $ENV{XDG_DATA_DIRS};
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133 $xdg_data_dirs = '/usr/local/share/:/usr/share/' if
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134 !defined($xdg_data_dirs) ||
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135 $xdg_data_dirs eq '';
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136
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137 my @searchdirs = ("$xdg_data_home/applications/");
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138 for my $dir (split(':', $xdg_data_dirs)) {
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139 push @searchdirs, "$dir/applications/";
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140 }
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141
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142 # Cleanup the paths, maybe some application does not cope with double slashes
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143 # (the field code %k is replaced with the .desktop file location).
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144 @searchdirs = map { s,//,/,g; $_ } @searchdirs;
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145
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146 # To avoid errors by File::Find’s find(), only pass existing directories.
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147 @searchdirs = grep { -d $_ } @searchdirs;
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148
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149 find(
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150 {
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151 wanted => sub {
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152 return unless substr($_, -1 * length('.desktop')) eq '.desktop';
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153 my $relative = $File::Find::name;
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154
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155 # + 1 for the trailing /, which is missing in ::topdir.
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156 substr($relative, 0, length($File::Find::topdir) + 1) = '';
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157
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158 # Don’t overwrite files with the same relative path, we search in
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159 # descending order of importance.
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160 return if exists($desktops{$relative});
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161
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162 $desktops{$relative} = $File::Find::name;
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163 },
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164 no_chdir => 1,
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165 },
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166 @searchdirs
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167 );
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168
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169 for my $file (values %desktops) {
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170 my $base = basename($file);
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171
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172 # _ is an invalid character for a key, so we can use it for our own keys.
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173 $apps{$base}->{_Location} = $file;
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174
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175 # Extract all “Name” and “Exec” keys from the [Desktop Entry] group
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176 # and store them in $apps{$base}.
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177 my %names;
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178 my $content = slurp($file);
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179 next unless defined($content);
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180 my @lines = split("\n", $content);
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181 for my $line (@lines) {
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182 my $first = substr($line, 0, 1);
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183 next if $line eq '' || $first eq '#';
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184 next unless ($line eq '[Desktop Entry]' ..
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185 ($first eq '[' &&
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186 substr($line, -1) eq ']' &&
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187 $line ne '[Desktop Entry]'));
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188 next if $first eq '[';
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189
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190 my ($key, $value) = ($line =~ /^
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191 (
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192 [A-Za-z0-9-]+ # the spec specifies these as valid key characters
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193 (?:\[[^]]+\])? # possibly, there as a locale suffix
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194 )
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195 \s* = \s* # whitespace around = should be ignored
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196 (.*) # no restrictions on the values
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197 $/x);
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198
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199 if ($key =~ /^Name/) {
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200 $names{$key} = $value;
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201 } elsif ($key eq 'Exec' ||
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202 $key eq 'TryExec' ||
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203 $key eq 'Path' ||
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204 $key eq 'Type') {
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205 $apps{$base}->{$key} = $value;
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206 } elsif ($key eq 'NoDisplay' ||
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207 $key eq 'Hidden' ||
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208 $key eq 'StartupNotify' ||
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209 $key eq 'Terminal') {
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210 # Values of type boolean must either be string true or false,
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211 # see “Possible value types”:
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212 # http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s03.html
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213 $apps{$base}->{$key} = ($value eq 'true');
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214 }
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215 }
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216
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217 for my $suffix (@suffixes) {
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218 next unless exists($names{"Name[$suffix]"});
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219 $apps{$base}->{Name} = $names{"Name[$suffix]"};
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220 last;
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221 }
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222
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223 # Fallback to unlocalized “Name”.
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224 $apps{$base}->{Name} = $names{Name} unless exists($apps{$base}->{Name});
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225 }
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226
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227 # %apps now looks like this:
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228 #
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229 # %apps = {
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230 # 'evince.desktop' => {
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231 # 'Exec' => 'evince %U',
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232 # 'Name' => 'Dokumentenbetrachter',
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233 # '_Location' => '/usr/share/applications/evince.desktop'
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234 # },
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235 # 'gedit.desktop' => {
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236 # 'Exec' => 'gedit %U',
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237 # 'Name' => 'gedit',
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238 # '_Location' => '/usr/share/applications/gedit.desktop'
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239 # }
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240 # };
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241
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242 # ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
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243 # ┃ Turn %apps inside out to provide Name → filename lookup. ┃
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244 # ┃ The Name is what we display in dmenu later. ┃
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245 # ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
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246
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247 for my $app (keys %apps) {
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248 my $name = $apps{$app}->{Name};
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249
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250 # Don’t try to use .desktop files which don’t have Type=application
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251 next if (!exists($apps{$app}->{Type}) ||
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252 $apps{$app}->{Type} ne 'Application');
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253
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254 # Skip broken files (Type=application, but no Exec key).
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255 if (!exists($apps{$app}->{Exec}) ||
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256 $apps{$app}->{Exec} eq '') {
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257 warn 'File ' . $apps{$app}->{_Location} . ' is broken: it contains Type=Application, but no Exec key/value pair.';
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258 next;
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259 }
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260
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261 # Don’t offer apps which have NoDisplay == true or Hidden == true.
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262 # See http://wiki.xfce.org/howto/customize-menu#hide_menu_entries
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263 # for the difference between NoDisplay and Hidden.
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264 next if (exists($apps{$app}->{NoDisplay}) && $apps{$app}->{NoDisplay}) ||
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265 (exists($apps{$app}->{Hidden}) && $apps{$app}->{Hidden});
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266
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267 if (exists($apps{$app}->{TryExec})) {
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268 my $tryexec = $apps{$app}->{TryExec};
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269 if (substr($tryexec, 0, 1) eq '/') {
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270 # Skip if absolute path is not executable.
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271 next unless -x $tryexec;
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272 } else {
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273 # Search in $PATH for the executable.
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274 my $found = 0;
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275 for my $path (split(':', $ENV{PATH})) {
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276 next unless -x "$path/$tryexec";
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277 $found = 1;
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278 last;
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279 }
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280 next unless $found;
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281 }
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282 }
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283
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284 if ('name' ~~ @entry_types) {
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285 if (exists($choices{$name})) {
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286 # There are two .desktop files which contain the same “Name” value.
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287 # I’m not sure if that is allowed to happen, but we disambiguate the
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288 # situation by appending “ (2)”, “ (3)”, etc. to the name.
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289 #
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290 # An example of this happening is exo-file-manager.desktop and
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291 # thunar-settings.desktop, both of which contain “Name=File Manager”.
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292 my $inc = 2;
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293 $inc++ while exists($choices{"$name ($inc)"});
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294 $name = "$name ($inc)";
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295 }
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296
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297 $choices{$name} = $app;
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298 }
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299
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300 if ('command' ~~ @entry_types) {
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301 my ($command) = split(' ', $apps{$app}->{Exec});
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302
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303 # Don’t add “geany” if “Geany” is already present.
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304 my @keys = map { lc } keys %choices;
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305 next if lc(basename($command)) ~~ @keys;
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306
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307 $choices{basename($command)} = $app;
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308 }
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309
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310 if ('filename' ~~ @entry_types) {
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311 my $filename = basename($app, '.desktop');
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312
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313 # Don’t add “geany” if “Geany” is already present.
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314 my @keys = map { lc } keys %choices;
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315 next if lc($filename) ~~ @keys;
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316
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317 $choices{$filename} = $app;
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318 }
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319 }
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320
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321 nstore [ \%apps, \%choices ], $cachefile;
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322 }
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323
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324
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325 # %choices now looks like this:
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326 #
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327 # %choices = {
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328 # 'Dokumentenbetrachter' => 'evince.desktop',
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329 # 'gedit' => 'gedit.desktop'
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330 # };
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331
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332 # ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
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parents:
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333 # ┃ Run dmenu to ask the user for her choice ┃
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334 # ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
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335
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336 # open2 will just make dmenu’s STDERR go to our own STDERR.
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parents:
diff changeset
337 my ($dmenu_out, $dmenu_in);
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338 my $pid = eval {
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339 open2($dmenu_out, $dmenu_in, $dmenu_cmd);
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parents:
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340 } or do {
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341 print STDERR "$@";
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342 say STDERR "Running dmenu failed. Is dmenu installed at all? Try running dmenu -v";
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parents:
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343 exit 1;
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344 };
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345
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346 binmode $dmenu_in, ':utf8';
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347 binmode $dmenu_out, ':utf8';
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348
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349 # Feed dmenu the possible choices.
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350 say $dmenu_in $_ for sort keys %choices;
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351 close($dmenu_in);
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352
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353 waitpid($pid, 0);
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354 my $status = ($? >> 8);
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355
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356 # Pass on dmenu’s exit status if there was an error.
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357 exit $status unless $status == 0;
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parents:
diff changeset
358
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359 my $choice = <$dmenu_out>;
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parents:
diff changeset
360 # dmenu ≥ 4.4 adds a newline after the choice
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parents:
diff changeset
361 chomp($choice);
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362 my $app;
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diff changeset
363 # Exact match: the user chose “Avidemux (GTK+)”
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parents:
diff changeset
364 if (exists($choices{$choice})) {
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diff changeset
365 $app = $apps{$choices{$choice}};
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366 $choice = '';
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367 } else {
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parents:
diff changeset
368 # Not an exact match: the user entered “Avidemux (GTK+) ~/movie.mp4”
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parents:
diff changeset
369 for my $possibility (keys %choices) {
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parents:
diff changeset
370 next unless substr($choice, 0, length($possibility)) eq $possibility;
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parents:
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371 $app = $apps{$choices{$possibility}};
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parents:
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372 substr($choice, 0, length($possibility)) = '';
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parents:
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373 # Remove whitespace separating the entry and arguments.
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parents:
diff changeset
374 $choice =~ s/^\s//g;
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parents:
diff changeset
375 last;
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parents:
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376 }
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Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
377 if (!defined($app)) {
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parents:
diff changeset
378 warn "Invalid input: “$choice” does not match any application. Trying to execute nevertheless.";
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parents:
diff changeset
379 $app->{Name} = '';
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diff changeset
380 $app->{Exec} = $choice;
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diff changeset
381 # We assume that the app is old and does not support startup
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Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
382 # notifications because it doesn’t ship a desktop file.
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Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
383 $app->{StartupNotify} = 0;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
384 $app->{_Location} = '';
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
385 }
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
386 }
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
387
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
388 # ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
389 # ┃ Make i3 start the chosen application. ┃
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
390 # ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
391
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
392 my $name = $app->{Name};
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
393 my $exec = $app->{Exec};
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
394 my $location = $app->{_Location};
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
395
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
396 # Quote as described by “The Exec key”:
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
397 # http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s06.html
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
398 sub quote {
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
399 my ($str) = @_;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
400 $str =~ s/("|`|\$|\\)/\\$1/g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
401 $str = qq|"$str"| if $str ne "";
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
402 return $str;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
403 }
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
404
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
405 $choice = quote($choice);
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
406 $location = quote($location);
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
407
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
408 # Remove deprecated field codes, as the spec dictates.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
409 $exec =~ s/%[dDnNvm]//g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
410
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
411 # Replace filename field codes with the rest of the command line.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
412 # Note that we assume the user uses precisely one file name,
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
413 # not multiple file names.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
414 $exec =~ s/%[fF]/$choice/g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
415
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
416 # If the program works with URLs,
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
417 # we assume the user provided a URL instead of a filename.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
418 # As per the spec, there must be at most one of %f, %u, %F or %U present.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
419 $exec =~ s/%[uU]/$choice/g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
420
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
421 # The translated name of the application.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
422 $exec =~ s/%c/$name/g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
423
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
424 # XXX: Icons are not implemented. Is the complexity (looking up the path if
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
425 # only a name is given) actually worth it?
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
426 #$exec =~ s/%i/--icon $icon/g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
427 $exec =~ s/%i//g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
428
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
429 # location of .desktop file
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
430 $exec =~ s/%k/$location/g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
431
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
432 # Literal % characters are represented as %%.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
433 $exec =~ s/%%/%/g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
434
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
435 if (exists($app->{Path}) && $app->{Path} ne '') {
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
436 $exec = 'cd ' . $app->{Path} . ' && ' . $exec;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
437 }
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
438
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
439 my $nosn = '';
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
440 my $cmd;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
441 if (exists($app->{Terminal}) && $app->{Terminal}) {
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
442 # For applications which specify “Terminal=true” (e.g. htop.desktop),
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
443 # we need to create a temporary script that contains the full command line
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
444 # as the syntax for starting commands with arguments varies from terminal
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
445 # emulator to terminal emulator.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
446 # Then, we launch that script with i3-sensible-terminal.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
447 my ($fh, $filename) = tempfile();
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
448 binmode($fh, ':utf8');
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
449 say $fh <<EOT;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
450 #!/bin/sh
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
451 rm $filename
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
452 exec $exec
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
453 EOT
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
454 close($fh);
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
455 chmod 0755, $filename;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
456
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
457 $cmd = qq|exec i3-sensible-terminal -e "$filename"|;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
458 } else {
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
459 # i3 executes applications by passing the argument to i3’s “exec” command
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
460 # as-is to $SHELL -c. The i3 parser supports quoted strings: When a string
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
461 # starts with a double quote ("), everything is parsed as-is until the next
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
462 # double quote which is NOT preceded by a backslash (\).
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
463 #
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
464 # Therefore, we escape all double quotes (") by replacing them with \"
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
465 $exec =~ s/"/\\"/g;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
466
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
467 if (exists($app->{StartupNotify}) && !$app->{StartupNotify}) {
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
468 $nosn = '--no-startup-id';
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
469 }
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
470 $cmd = qq|exec $nosn "$exec"|;
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
471 }
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
472
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
473 system('i3-msg', $cmd) == 0 or die "Could not launch i3-msg: $?";
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
474
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
475 =encoding utf-8
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
476
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
477 =head1 NAME
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
478
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
479 i3-dmenu-desktop - run .desktop files with dmenu
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
480
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
481 =head1 SYNOPSIS
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
482
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
483 i3-dmenu-desktop [--dmenu='dmenu -i'] [--entry-type=name]
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
484
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
485 =head1 DESCRIPTION
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
486
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
487 i3-dmenu-desktop is a script which extracts the (localized) name from
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
488 application .desktop files, offers the user a choice via dmenu(1) and then
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
489 starts the chosen application via i3 (for startup notification support).
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
490 The advantage of using .desktop files instead of dmenu_run(1) is that dmenu_run
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
491 offers B<all> binaries in your $PATH, including non-interactive utilities like
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
492 "sed". Also, .desktop files contain a proper name, information about whether
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
493 the application runs in a terminal and whether it supports startup
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
494 notifications.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
495
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
496 The .desktop files are searched in $XDG_DATA_HOME/applications (by default
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
497 $HOME/.local/share/applications) and in the "applications" subdirectory of each
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
498 entry of $XDG_DATA_DIRS (by default /usr/local/share/:/usr/share/).
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
499
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
500 Files with the same name in $XDG_DATA_HOME/applications take precedence over
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
501 files in $XDG_DATA_DIRS, so that you can overwrite parts of the system-wide
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
502 .desktop files by copying them to your local directory and making changes.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
503
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
504 i3-dmenu-desktop displays the "Name" value in the localized version depending
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
505 on LC_MESSAGES as specified in the Desktop Entry Specification.
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
506
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
507 You can pass a filename or URL (%f/%F and %u/%U field codes in the .desktop
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
508 file respectively) by appending it to the name of the application. E.g., if you
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
509 want to launch "GNU Emacs 24" with the patch /tmp/foobar.txt, you would type
aa620cdf1022 i3: add customized i3-dmenu-desktop that caches menu data
Meredith Howard <mhoward@roomag.org>
parents:
diff changeset
510 "emacs", press TAB, type " /tmp/foobar.txt" and press ENTER.
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511
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512 .desktop files with Terminal=true are started using i3-sensible-terminal(1).
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513
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514 .desktop files with NoDisplay=true or Hidden=true are skipped.
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515
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516 UTF-8 is supported, of course, but dmenu does not support displaying all
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517 glyphs. E.g., xfce4-terminal.desktop's Name[fi]=Pääte will be displayed just
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518 fine, but not its Name[ru]=Терминал.
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519
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520 =head1 OPTIONS
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521
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522 =over
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523
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524 =item B<--dmenu=command>
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525
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526 Execute command instead of 'dmenu -i'. This option can be used to pass custom
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527 parameters to dmenu, or to make i3-dmenu-desktop start a custom (patched?)
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528 version of dmenu.
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529
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530 =item B<--entry-type=type>
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531
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532 Display the (localized) "Name" (type = name), the command (type = command) or
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533 the (*.desktop) filename (type = filename) in dmenu. This option can be
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534 specified multiple times.
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535
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536 Examples are "GNU Image Manipulation Program" (type = name), "gimp" (type =
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537 command), and "libreoffice-writer" (type = filename).
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538
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539 =back
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540
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541 =head1 VERSION
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542
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543 Version 1.5
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544
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545 =head1 AUTHOR
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546
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547 Michael Stapelberg, C<< <michael at i3wm.org> >>
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548
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549 =head1 LICENSE AND COPYRIGHT
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550
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551 Copyright 2012 Michael Stapelberg.
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552
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553 This program is free software; you can redistribute it and/or modify it
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554 under the terms of the BSD license.
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555
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556 =cut

mercurial