[ee183be] | 1 | use strict; |
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| 2 | use warnings; |
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| 3 | |
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| 4 | package BarnOwl; |
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| 5 | |
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[2be605a] | 6 | use base qw(Exporter); |
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[b303ba2] | 7 | our @EXPORT_OK = qw(command getcurmsg getnumcols getnumlines getidletime |
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[ecd4edf] | 8 | register_idle_watcher unregister_idle_watcher |
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[2be605a] | 9 | zephyr_getsender zephyr_getrealm zephyr_zwrite |
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| 10 | zephyr_stylestrip zephyr_smartstrip_user zephyr_getsubs |
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| 11 | queue_message admin_message |
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[e89ec48] | 12 | start_edit |
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[2be605a] | 13 | start_question start_password start_edit_win |
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| 14 | get_data_dir get_config_dir popless_text popless_ztext |
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[eede1bf] | 15 | error debug |
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[2be605a] | 16 | create_style getnumcolors wordwrap |
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[1ced34f] | 17 | message_matches_filter |
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[ffc4df6] | 18 | add_dispatch remove_dispatch |
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| 19 | add_io_dispatch remove_io_dispatch |
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[2be605a] | 20 | new_command |
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| 21 | new_variable_int new_variable_bool new_variable_string |
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[e26abb6] | 22 | new_variable_enum |
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[4df918b] | 23 | quote redisplay); |
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[2be605a] | 24 | our %EXPORT_TAGS = (all => \@EXPORT_OK); |
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| 25 | |
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[fd8dfe7] | 26 | BEGIN { |
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| 27 | # bootstrap in C bindings and glue |
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| 28 | *owl:: = \*BarnOwl::; |
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| 29 | bootstrap BarnOwl 1.2; |
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| 30 | }; |
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| 31 | |
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| 32 | use lib(get_data_dir() . "/lib"); |
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| 33 | use lib(get_config_dir() . "/lib"); |
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| 34 | |
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[9179fd7] | 35 | use Glib; |
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| 36 | use AnyEvent; |
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| 37 | |
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[fd8dfe7] | 38 | use BarnOwl::Hook; |
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| 39 | use BarnOwl::Hooks; |
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| 40 | use BarnOwl::Message; |
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| 41 | use BarnOwl::Style; |
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[df569c5] | 42 | use BarnOwl::Zephyr; |
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[fd8dfe7] | 43 | use BarnOwl::Timer; |
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[cf26b72] | 44 | use BarnOwl::Editwin; |
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[8eac1a5] | 45 | use BarnOwl::Completion; |
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[b30c256] | 46 | use BarnOwl::Help; |
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[fd8dfe7] | 47 | |
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[6700c605] | 48 | use List::Util qw(max); |
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[ecd4edf] | 49 | use Tie::RefHash; |
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[6700c605] | 50 | |
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[ee183be] | 51 | =head1 NAME |
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| 52 | |
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| 53 | BarnOwl |
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| 54 | |
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| 55 | =head1 DESCRIPTION |
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| 56 | |
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| 57 | The BarnOwl module contains the core of BarnOwl's perl |
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| 58 | bindings. Source in this module is also run at startup to bootstrap |
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[b8a3e00] | 59 | BarnOwl by defining things like the default style. |
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[ee183be] | 60 | |
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| 61 | =for NOTE |
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| 62 | These following functions are defined in perlglue.xs. Keep the |
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| 63 | documentation here in sync with the user-visible commands defined |
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| 64 | there! |
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| 65 | |
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| 66 | =head2 command STRING |
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| 67 | |
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| 68 | Executes a BarnOwl command in the same manner as if the user had |
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| 69 | executed it at the BarnOwl command prompt. If the command returns a |
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| 70 | value, return it as a string, otherwise return undef. |
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| 71 | |
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| 72 | =head2 getcurmsg |
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| 73 | |
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| 74 | Returns the current message as a C<BarnOwl::Message> subclass, or |
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| 75 | undef if there is no message selected |
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| 76 | =head2 getnumcols |
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| 77 | |
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| 78 | Returns the width of the display window BarnOwl is currently using |
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| 79 | |
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| 80 | =head2 getidletime |
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| 81 | |
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| 82 | Returns the length of time since the user has pressed a key, in |
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| 83 | seconds. |
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| 84 | |
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| 85 | =head2 zephyr_getrealm |
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| 86 | |
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[b8a3e00] | 87 | Returns the zephyr realm BarnOwl is running in |
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[ee183be] | 88 | |
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| 89 | =head2 zephyr_getsender |
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| 90 | |
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[b8a3e00] | 91 | Returns the fully-qualified name of the zephyr sender BarnOwl is |
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[ee183be] | 92 | running as, e.g. C<nelhage@ATHENA.MIT.EDU> |
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| 93 | |
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| 94 | =head2 zephyr_zwrite COMMAND MESSAGE |
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| 95 | |
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| 96 | Sends a zephyr programmatically. C<COMMAND> should be a C<zwrite> |
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| 97 | command line, and C<MESSAGE> is the zephyr body to send. |
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| 98 | |
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[374089a] | 99 | =cut |
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| 100 | |
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| 101 | sub zephyr_zwrite { |
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| 102 | my ($command, $message) = @_; |
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| 103 | my $ret = BarnOwl::Internal::zephyr_zwrite($command, $message); |
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| 104 | die "Error sending zephyr" unless $ret == 0; |
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| 105 | } |
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| 106 | |
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[ee183be] | 107 | =head2 ztext_stylestrip STRING |
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| 108 | |
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| 109 | Strips zephyr formatting from a string and returns the result |
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| 110 | |
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| 111 | =head2 zephyr_getsubs |
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| 112 | |
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| 113 | Returns the list of subscription triples <class,instance,recipient>, |
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| 114 | separated by newlines. |
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| 115 | |
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| 116 | =head2 queue_message MESSAGE |
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| 117 | |
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| 118 | Enqueue a message in the BarnOwl message list, logging it and |
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| 119 | processing it appropriately. C<MESSAGE> should be an instance of |
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[e89ec48] | 120 | BarnOwl::Message or a subclass. |
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[ee183be] | 121 | |
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| 122 | =head2 admin_message HEADER BODY |
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| 123 | |
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| 124 | Display a BarnOwl B<Admin> message, with the given header and body. |
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| 125 | |
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[e89ec48] | 126 | =head2 start_edit %ARGS |
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[ee183be] | 127 | |
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[e89ec48] | 128 | Displays a prompt on the screen and lets the user enter text, |
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| 129 | and calls a callback when the editwin is closed. |
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[ee183be] | 130 | |
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[e89ec48] | 131 | C<%ARGS> must contain the following keys: |
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| 132 | |
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| 133 | =over 4 |
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| 134 | |
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| 135 | =item prompt |
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| 136 | |
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| 137 | The line to display on the screen |
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| 138 | |
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| 139 | =item type |
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| 140 | |
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| 141 | One of: |
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| 142 | |
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| 143 | =over 4 |
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| 144 | |
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| 145 | =item edit_win |
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| 146 | |
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| 147 | Displays the prompt on a line of its own and opens the edit_win. |
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| 148 | |
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| 149 | =item question |
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| 150 | |
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| 151 | Displays prompt on the screen and lets the user enter a line of |
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| 152 | text. |
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| 153 | |
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| 154 | =item password |
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[ee183be] | 155 | |
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[e89ec48] | 156 | Like question, but echoes the user's input as C<*>s when they |
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[ee183be] | 157 | input. |
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| 158 | |
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[e89ec48] | 159 | =back |
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| 160 | |
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| 161 | =item callback |
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| 162 | |
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| 163 | A Perl subroutine that is called when the user closes the edit_win. |
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[7803326] | 164 | C<CALLBACK> gets called with two parameters: the text the user entered, |
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| 165 | and a C<SUCCESS> boolean parameter which is false if the user canceled |
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| 166 | the edit_win and true otherwise. |
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[e89ec48] | 167 | |
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| 168 | =back |
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| 169 | |
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| 170 | =head2 start_question PROMPT CALLBACK |
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| 171 | |
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| 172 | =head2 start_password PROMPT CALLBACK |
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| 173 | |
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[ee183be] | 174 | =head2 start_edit_win PROMPT CALLBACK |
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| 175 | |
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[7803326] | 176 | Roughly equivalent to C<start_edit> called with the appropriate parameters. |
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| 177 | C<CALLBACK> is only called on success, for compatibility. |
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| 178 | |
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| 179 | These are deprecated wrappers around L<BarnOwl::start_edit>, and should not |
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| 180 | be uesd in new code. |
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[e89ec48] | 181 | |
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| 182 | =cut |
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| 183 | |
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| 184 | sub start_edit { |
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| 185 | my %args = (@_); |
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| 186 | BarnOwl::Internal::start_edit($args{type}, $args{prompt}, $args{callback}); |
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| 187 | } |
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| 188 | |
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| 189 | sub start_question { |
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| 190 | my ($prompt, $callback) = @_; |
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[7803326] | 191 | BarnOwl::start_edit(type => 'question', prompt => $prompt, callback => sub { |
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| 192 | my ($text, $success) = @_; |
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| 193 | $callback->($text) if $success; |
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| 194 | }); |
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[e89ec48] | 195 | } |
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| 196 | |
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| 197 | sub start_password { |
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| 198 | my ($prompt, $callback) = @_; |
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[7803326] | 199 | BarnOwl::start_edit(type => 'password', prompt => $prompt, callback => sub { |
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| 200 | my ($text, $success) = @_; |
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| 201 | $callback->($text) if $success; |
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| 202 | }); |
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[e89ec48] | 203 | } |
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| 204 | |
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| 205 | sub start_edit_win { |
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| 206 | my ($prompt, $callback) = @_; |
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[7803326] | 207 | BarnOwl::start_edit(type => 'edit_win', prompt => $prompt, callback => sub { |
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| 208 | my ($text, $success) = @_; |
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| 209 | $callback->($text) if $success; |
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| 210 | }); |
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[e89ec48] | 211 | } |
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[ee183be] | 212 | |
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| 213 | =head2 get_data_dir |
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| 214 | |
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| 215 | Returns the BarnOwl system data directory, where system libraries and |
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| 216 | modules are stored |
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| 217 | |
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| 218 | =head2 get_config_dir |
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| 219 | |
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| 220 | Returns the BarnOwl user configuration directory, where user modules |
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| 221 | and configuration are stored (by default, C<$HOME/.owl>) |
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| 222 | |
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| 223 | =head2 popless_text TEXT |
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| 224 | |
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| 225 | Show a popup window containing the given C<TEXT> |
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| 226 | |
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| 227 | =head2 popless_ztext TEXT |
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| 228 | |
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| 229 | Show a popup window containing the provided zephyr-formatted C<TEXT> |
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| 230 | |
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| 231 | =head2 error STRING |
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| 232 | |
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| 233 | Reports an error and log it in `show errors'. Note that in any |
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| 234 | callback or hook called in perl code from BarnOwl, a C<die> will be |
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| 235 | caught and passed to C<error>. |
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| 236 | |
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[eede1bf] | 237 | =head2 debug STRING |
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| 238 | |
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| 239 | Logs a debugging message to BarnOwl's debug log |
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| 240 | |
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[ee183be] | 241 | =head2 getnumcolors |
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| 242 | |
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| 243 | Returns the number of colors this BarnOwl is capable of displaying |
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| 244 | |
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[1ced34f] | 245 | =head2 message_matches_filter MESSAGE FILTER_NAME [QUIET = 0] |
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| 246 | |
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| 247 | Returns 1 if C<FILTER_NAME> is the name of a valid filter, and |
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| 248 | C<MESSAGE> matches that filter. Returns 0 otherwise. If |
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| 249 | C<QUIET> is false, this method displays an error message if |
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| 250 | if C<FILTER_NAME> does not name a valid filter. |
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| 251 | |
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[ee183be] | 252 | =head2 add_dispatch FD CALLBACK |
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| 253 | |
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| 254 | Adds a file descriptor to C<BarnOwl>'s internal C<select()> |
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| 255 | loop. C<CALLBACK> will be invoked whenever data is available to be |
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| 256 | read from C<FD>. |
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| 257 | |
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[bcde7926] | 258 | C<add_dispatch> has been deprecated in favor of C<AnyEvent>, and is |
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| 259 | now a wrapper for C<add_io_dispatch> called with C<mode> set to |
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| 260 | C<'r'>. |
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[ffc4df6] | 261 | |
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| 262 | =cut |
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| 263 | |
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| 264 | sub add_dispatch { |
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| 265 | my $fd = shift; |
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| 266 | my $cb = shift; |
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| 267 | add_io_dispatch($fd, 'r', $cb); |
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| 268 | } |
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| 269 | |
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[ee183be] | 270 | =head2 remove_dispatch FD |
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| 271 | |
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| 272 | Remove a file descriptor previously registered via C<add_dispatch> |
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| 273 | |
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[bcde7926] | 274 | C<remove_dispatch> has been deprecated in favor of C<AnyEvent>. |
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[ffc4df6] | 275 | |
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| 276 | =cut |
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| 277 | |
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| 278 | *remove_dispatch = \&remove_io_dispatch; |
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| 279 | |
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| 280 | =head2 add_io_dispatch FD MODE CB |
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| 281 | |
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| 282 | Adds a file descriptor to C<BarnOwl>'s internal C<select()> |
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| 283 | loop. <MODE> can be 'r', 'w', or 'rw'. C<CALLBACK> will be invoked |
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| 284 | whenever C<FD> becomes ready, as specified by <MODE>. |
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| 285 | |
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| 286 | Only one callback can be registered per FD. If a new callback is |
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| 287 | registered, the old one is removed. |
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| 288 | |
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[bcde7926] | 289 | C<add_io_dispatch> has been deprecated in favor of C<AnyEvent>. |
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| 290 | |
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[ffc4df6] | 291 | =cut |
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| 292 | |
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[bcde7926] | 293 | our %_io_dispatches; |
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| 294 | |
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[ffc4df6] | 295 | sub add_io_dispatch { |
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| 296 | my $fd = shift; |
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| 297 | my $modeStr = shift; |
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| 298 | my $cb = shift; |
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[bcde7926] | 299 | my @modes; |
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| 300 | |
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| 301 | push @modes, 'r' if $modeStr =~ /r/i; # Read |
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| 302 | push @modes, 'w' if $modeStr =~ /w/i; # Write |
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| 303 | if (@modes) { |
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| 304 | BarnOwl::remove_io_dispatch($fd); |
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| 305 | for my $mode (@modes) { |
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| 306 | push @{$_io_dispatches{$fd}}, AnyEvent->io(fh => $fd, |
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| 307 | poll => $mode, |
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| 308 | cb => $cb); |
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| 309 | } |
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[ffc4df6] | 310 | } else { |
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| 311 | die("Invalid I/O Dispatch mode: $modeStr"); |
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| 312 | } |
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| 313 | } |
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| 314 | |
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| 315 | =head2 remove_io_dispatch FD |
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| 316 | |
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| 317 | Remove a file descriptor previously registered via C<add_io_dispatch> |
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| 318 | |
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[bcde7926] | 319 | C<remove_io_dispatch> has been deprecated in favor of C<AnyEvent>. |
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| 320 | |
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| 321 | =cut |
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| 322 | |
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| 323 | sub remove_io_dispatch { |
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| 324 | my $fd = shift; |
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| 325 | undef $_ foreach @{$_io_dispatches{$fd}}; |
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| 326 | delete $_io_dispatches{$fd}; |
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| 327 | } |
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| 328 | |
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[ee183be] | 329 | =head2 create_style NAME OBJECT |
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| 330 | |
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[b8a3e00] | 331 | Creates a new BarnOwl style with the given NAME defined by the given |
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[ee183be] | 332 | object. The object must have a C<description> method which returns a |
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| 333 | string description of the style, and a and C<format_message> method |
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| 334 | which accepts a C<BarnOwl::Message> object and returns a string that |
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| 335 | is the result of formatting the message for display. |
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| 336 | |
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[4df918b] | 337 | =head2 redisplay |
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| 338 | |
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| 339 | Redraw all of the messages on screen. This is useful if you've just |
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| 340 | changed how a style renders messages. |
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| 341 | |
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[ee183be] | 342 | =cut |
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| 343 | |
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| 344 | # perlconfig.c will set this to the value of the -c command-line |
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| 345 | # switch, if present. |
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| 346 | our $configfile; |
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| 347 | |
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[d7bcff8] | 348 | our @all_commands; |
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| 349 | |
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[8135737] | 350 | if(!$configfile) { |
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| 351 | if (-f get_config_dir() . "/init.pl") { |
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| 352 | $configfile = get_config_dir() . "/init.pl"; |
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| 353 | } elsif (-f $ENV{HOME} . "/.barnowlconf") { |
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| 354 | $configfile = $ENV{HOME} . "/.barnowlconf"; |
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| 355 | } else { |
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| 356 | $configfile = $ENV{HOME}."/.owlconf"; |
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| 357 | } |
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[ee183be] | 358 | } |
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| 359 | |
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| 360 | # populate global variable space for legacy owlconf files |
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| 361 | sub _receive_msg_legacy_wrap { |
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| 362 | my ($m) = @_; |
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| 363 | $m->legacy_populate_global(); |
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| 364 | return &BarnOwl::Hooks::_receive_msg($m); |
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| 365 | } |
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| 366 | |
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| 367 | =head2 new_command NAME FUNC [{ARGS}] |
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| 368 | |
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| 369 | Add a new owl command. When owl executes the command NAME, FUNC will |
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| 370 | be called with the arguments passed to the command, with NAME as the |
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| 371 | first argument. |
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| 372 | |
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| 373 | ARGS should be a hashref containing any or all of C<summary>, |
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| 374 | C<usage>, or C<description> keys: |
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| 375 | |
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| 376 | =over 4 |
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| 377 | |
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| 378 | =item summary |
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| 379 | |
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| 380 | A one-line summary of the purpose of the command |
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| 381 | |
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| 382 | =item usage |
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| 383 | |
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| 384 | A one-line usage synopsis, showing available options and syntax |
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| 385 | |
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| 386 | =item description |
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| 387 | |
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| 388 | A longer description of the syntax and semantics of the command, |
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| 389 | explaining usage and options |
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| 390 | |
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| 391 | =back |
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| 392 | |
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| 393 | =cut |
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| 394 | |
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| 395 | sub new_command { |
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| 396 | my $name = shift; |
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| 397 | my $func = shift; |
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| 398 | my $args = shift || {}; |
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| 399 | my %args = ( |
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| 400 | summary => "", |
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| 401 | usage => "", |
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| 402 | description => "", |
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| 403 | %{$args} |
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| 404 | ); |
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| 405 | |
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| 406 | BarnOwl::Internal::new_command($name, $func, $args{summary}, $args{usage}, $args{description}); |
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| 407 | } |
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| 408 | |
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| 409 | =head2 new_variable_int NAME [{ARGS}] |
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| 410 | |
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| 411 | =head2 new_variable_bool NAME [{ARGS}] |
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| 412 | |
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| 413 | =head2 new_variable_string NAME [{ARGS}] |
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| 414 | |
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[e26abb6] | 415 | =head2 new_variable_enum NAME [{ARGS}] |
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| 416 | |
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| 417 | Add a new owl variable, either an int, a bool, a string, or an enum with the |
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[ee183be] | 418 | specified name. |
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| 419 | |
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[e26abb6] | 420 | For new_variable_enum, ARGS is required to contain a validsettings key pointing |
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| 421 | to an array reference. For all four, it can optionally contain the following |
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| 422 | keys: |
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[ee183be] | 423 | |
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| 424 | =over 4 |
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| 425 | |
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| 426 | =item default |
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| 427 | |
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| 428 | The default and initial value for the variable |
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| 429 | |
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| 430 | =item summary |
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| 431 | |
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| 432 | A one-line summary of the variable's purpose |
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| 433 | |
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| 434 | =item description |
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| 435 | |
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| 436 | A longer description of the function of the variable |
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| 437 | |
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| 438 | =back |
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| 439 | |
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[104a4eb] | 440 | In addition, new_variable_string optionally accepts a string validsettings |
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| 441 | parameter, in case people want to set it to "<path>". |
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| 442 | |
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[ee183be] | 443 | =cut |
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| 444 | |
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| 445 | sub new_variable_int { |
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[523146b] | 446 | my ($name, $args) = @_; |
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| 447 | my $storage = defined($args->{default}) ? $args->{default} : 0; |
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| 448 | BarnOwl::new_variable_full($name, { |
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| 449 | %{$args}, |
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| 450 | get_tostring => sub { "$storage" }, |
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| 451 | set_fromstring => sub { |
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[4953c44] | 452 | die "Expected integer" unless $_[0] =~ /^-?[0-9]+$/; |
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[523146b] | 453 | $storage = 0 + $_[0]; |
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| 454 | }, |
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| 455 | validsettings => "<int>", |
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| 456 | takes_on_off => 0, |
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| 457 | }); |
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[ee183be] | 458 | } |
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| 459 | |
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| 460 | sub new_variable_bool { |
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[523146b] | 461 | my ($name, $args) = @_; |
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| 462 | my $storage = defined($args->{default}) ? $args->{default} : 0; |
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| 463 | BarnOwl::new_variable_full($name, { |
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| 464 | %{$args}, |
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| 465 | get_tostring => sub { $storage ? "on" : "off" }, |
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| 466 | set_fromstring => sub { |
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[4953c44] | 467 | die "Valid settings are on/off" unless $_[0] eq "on" || $_[0] eq "off"; |
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[523146b] | 468 | $storage = $_[0] eq "on"; |
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| 469 | }, |
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| 470 | validsettings => "on,off", |
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| 471 | takes_on_off => 1, |
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| 472 | }); |
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[ee183be] | 473 | } |
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| 474 | |
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| 475 | sub new_variable_string { |
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[523146b] | 476 | my ($name, $args) = @_; |
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| 477 | my $storage = defined($args->{default}) ? $args->{default} : ""; |
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| 478 | BarnOwl::new_variable_full($name, { |
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[104a4eb] | 479 | # Allow people to override this one if they /reaaally/ want to for |
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| 480 | # some reason. Though we still reserve the right to interpret this |
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| 481 | # value in interesting ways for tab-completion purposes. |
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| 482 | validsettings => "<string>", |
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[523146b] | 483 | %{$args}, |
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| 484 | get_tostring => sub { $storage }, |
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[4953c44] | 485 | set_fromstring => sub { $storage = $_[0]; }, |
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[523146b] | 486 | takes_on_off => 0, |
---|
| 487 | }); |
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[ee183be] | 488 | } |
---|
| 489 | |
---|
[e26abb6] | 490 | sub new_variable_enum { |
---|
| 491 | my ($name, $args) = @_; |
---|
| 492 | |
---|
| 493 | # Gather the valid settings. |
---|
| 494 | die "validsettings is required" unless defined($args->{validsettings}); |
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| 495 | my %valid; |
---|
| 496 | map { $valid{$_} = 1 } @{$args->{validsettings}}; |
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| 497 | |
---|
| 498 | my $storage = (defined($args->{default}) ? |
---|
| 499 | $args->{default} : |
---|
| 500 | $args->{validsettings}->[0]); |
---|
| 501 | BarnOwl::new_variable_full($name, { |
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| 502 | %{$args}, |
---|
| 503 | get_tostring => sub { $storage }, |
---|
| 504 | set_fromstring => sub { |
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[4953c44] | 505 | die "Invalid input" unless $valid{$_[0]}; |
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[e26abb6] | 506 | $storage = $_[0]; |
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| 507 | }, |
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| 508 | validsettings => join(",", @{$args->{validsettings}}) |
---|
| 509 | }); |
---|
| 510 | } |
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| 511 | |
---|
[523146b] | 512 | =head2 new_variable_full NAME {ARGS} |
---|
| 513 | |
---|
| 514 | Create a variable, in full generality. The keyword arguments have types below: |
---|
| 515 | |
---|
| 516 | get_tostring : () -> string |
---|
| 517 | set_fromstring : string -> int |
---|
| 518 | -- optional -- |
---|
| 519 | summary : string |
---|
| 520 | description : string |
---|
| 521 | validsettings : string |
---|
| 522 | takes_on_off : int |
---|
[69f74c2] | 523 | |
---|
[523146b] | 524 | The get/set functions are required. Note that the caller manages storage for the |
---|
| 525 | variable. get_tostring/set_fromstring both convert AND store the value. |
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[4953c44] | 526 | set_fromstring dies on failure. |
---|
[523146b] | 527 | |
---|
| 528 | If the variable takes parameters 'on' and 'off' (i.e. is boolean-looking), set |
---|
| 529 | takes_on_off to 1. This makes :set VAR and :unset VAR work. set_fromstring will |
---|
| 530 | be called with those arguments. |
---|
| 531 | |
---|
| 532 | =cut |
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| 533 | |
---|
| 534 | sub new_variable_full { |
---|
[ee183be] | 535 | my $name = shift; |
---|
| 536 | my $args = shift || {}; |
---|
| 537 | my %args = ( |
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[523146b] | 538 | summary => "", |
---|
[ee183be] | 539 | description => "", |
---|
[523146b] | 540 | takes_on_off => 0, |
---|
| 541 | validsettings => "<string>", |
---|
[ee183be] | 542 | %{$args}); |
---|
[69f74c2] | 543 | |
---|
[523146b] | 544 | die "get_tostring required" unless $args{get_tostring}; |
---|
| 545 | die "set_fromstring required" unless $args{set_fromstring}; |
---|
[69f74c2] | 546 | |
---|
[523146b] | 547 | # Strip off the bogus dummy argument. Aargh perl-Glib. |
---|
| 548 | my $get_tostring_fn = sub { $args{get_tostring}->() }; |
---|
[69f74c2] | 549 | my $set_fromstring_fn = sub { |
---|
[523146b] | 550 | my ($dummy, $val) = @_; |
---|
[4953c44] | 551 | # Translate from user-supplied die-on-failure callback to expected |
---|
| 552 | # non-zero on error. Less of a nuisance than interacting with ERRSV. |
---|
| 553 | eval { $args{set_fromstring}->($val) }; |
---|
| 554 | # TODO: Consider changing B::I::new_variable to expect string|NULL with |
---|
| 555 | # string as the error message. That can then be translated to a GError in |
---|
| 556 | # owl_variable_set_fromstring. For now the string is ignored. |
---|
| 557 | return ($@ ? -1 : 0); |
---|
[69f74c2] | 558 | }; |
---|
| 559 | |
---|
[523146b] | 560 | BarnOwl::Internal::new_variable($name, $args{summary}, $args{description}, $args{validsettings}, |
---|
| 561 | $args{takes_on_off}, $get_tostring_fn, $set_fromstring_fn, undef); |
---|
[ee183be] | 562 | } |
---|
| 563 | |
---|
[fc92e6e2] | 564 | =head2 quote LIST |
---|
[ee183be] | 565 | |
---|
[fc92e6e2] | 566 | Quotes each of the strings in LIST and returns a string that will be |
---|
| 567 | correctly decoded to LIST by the BarnOwl command parser. For example: |
---|
| 568 | |
---|
| 569 | quote('zwrite', 'andersk', '-m', 'Hello, world!') |
---|
| 570 | # returns "zwrite andersk -m 'Hello, world!'" |
---|
[ee183be] | 571 | |
---|
| 572 | =cut |
---|
| 573 | |
---|
| 574 | sub quote { |
---|
[fc92e6e2] | 575 | my @quoted; |
---|
| 576 | for my $str (@_) { |
---|
| 577 | if ($str eq '') { |
---|
| 578 | push @quoted, "''"; |
---|
[ef4700c] | 579 | } elsif ($str !~ /['" \n\t]/) { |
---|
[fc92e6e2] | 580 | push @quoted, "$str"; |
---|
| 581 | } elsif ($str !~ /'/) { |
---|
| 582 | push @quoted, "'$str'"; |
---|
| 583 | } else { |
---|
| 584 | (my $qstr = $str) =~ s/"/"'"'"/g; |
---|
| 585 | push @quoted, '"' . $qstr . '"'; |
---|
| 586 | } |
---|
[ee183be] | 587 | } |
---|
[fc92e6e2] | 588 | return join(' ', @quoted); |
---|
[ee183be] | 589 | } |
---|
| 590 | |
---|
[22b54a7] | 591 | =head2 Modify filters by appending text |
---|
| 592 | |
---|
| 593 | =cut |
---|
| 594 | |
---|
[cff58b4] | 595 | sub register_builtin_commands { |
---|
[0b2afba] | 596 | # Filter modification |
---|
[cff58b4] | 597 | BarnOwl::new_command("filterappend", |
---|
| 598 | sub { filter_append_helper('appending', '', @_); }, |
---|
| 599 | { |
---|
| 600 | summary => "append '<text>' to filter", |
---|
| 601 | usage => "filterappend <filter> <text>", |
---|
| 602 | }); |
---|
| 603 | |
---|
| 604 | BarnOwl::new_command("filterand", |
---|
| 605 | sub { filter_append_helper('and-ing', 'and', @_); }, |
---|
| 606 | { |
---|
| 607 | summary => "append 'and <text>' to filter", |
---|
| 608 | usage => "filterand <filter> <text>", |
---|
| 609 | }); |
---|
| 610 | |
---|
| 611 | BarnOwl::new_command("filteror", |
---|
| 612 | sub { filter_append_helper('or-ing', 'or', @_); }, |
---|
| 613 | { |
---|
| 614 | summary => "append 'or <text>' to filter", |
---|
| 615 | usage => "filteror <filter> <text>", |
---|
| 616 | }); |
---|
| 617 | |
---|
[0b2afba] | 618 | # Date formatting |
---|
| 619 | BarnOwl::new_command("showdate", |
---|
| 620 | sub { BarnOwl::time_format('showdate', '%Y-%m-%d %H:%M'); }, |
---|
| 621 | { |
---|
| 622 | summary => "Show date in timestamps for supporting styles.", |
---|
| 623 | usage => "showdate", |
---|
| 624 | }); |
---|
| 625 | |
---|
| 626 | BarnOwl::new_command("hidedate", |
---|
| 627 | sub { BarnOwl::time_format('hidedate', '%H:%M'); }, |
---|
| 628 | { |
---|
| 629 | summary => "Don't show date in timestamps for supporting styles.", |
---|
| 630 | usage => "hidedate", |
---|
| 631 | }); |
---|
| 632 | |
---|
| 633 | BarnOwl::new_command("timeformat", |
---|
| 634 | \&BarnOwl::time_format, |
---|
| 635 | { |
---|
| 636 | summary => "Set the format for timestamps and re-display messages", |
---|
| 637 | usage => "timeformat <format>", |
---|
| 638 | }); |
---|
| 639 | |
---|
[6700c605] | 640 | # Receive window scrolling |
---|
| 641 | BarnOwl::new_command("recv:shiftleft", |
---|
| 642 | \&BarnOwl::recv_shift_left, |
---|
| 643 | { |
---|
| 644 | summary => "scrolls receive window to the left", |
---|
| 645 | usage => "recv:shiftleft [<amount>]", |
---|
| 646 | description => <<END_DESCR |
---|
| 647 | By default, scroll left by 10 columns. Passing no arguments or 0 activates this default behavior. |
---|
| 648 | Otherwise, scroll by the number of columns specified as the argument. |
---|
| 649 | END_DESCR |
---|
| 650 | }); |
---|
| 651 | |
---|
| 652 | BarnOwl::new_command("recv:shiftright", |
---|
| 653 | \&BarnOwl::recv_shift_right, |
---|
| 654 | { |
---|
| 655 | summary => "scrolls receive window to the right", |
---|
| 656 | usage => "recv:shiftright [<amount>]", |
---|
| 657 | description => <<END_DESCR |
---|
| 658 | By default, scroll right by 10 columns. Passing no arguments or 0 activates this default behavior. |
---|
| 659 | Otherwise, scroll by the number of columns specified as the argument. |
---|
| 660 | END_DESCR |
---|
| 661 | }); |
---|
| 662 | |
---|
[cff58b4] | 663 | } |
---|
| 664 | |
---|
| 665 | $BarnOwl::Hooks::startup->add("BarnOwl::register_builtin_commands"); |
---|
[22b54a7] | 666 | |
---|
| 667 | =head3 filter_append_helper ACTION SEP FUNC FILTER APPEND_TEXT |
---|
| 668 | |
---|
| 669 | Helper to append to filters. |
---|
| 670 | |
---|
| 671 | =cut |
---|
| 672 | |
---|
| 673 | sub filter_append_helper |
---|
| 674 | { |
---|
| 675 | my $action = shift; |
---|
| 676 | my $sep = shift; |
---|
| 677 | my $func = shift; |
---|
| 678 | my $filter = shift; |
---|
| 679 | my @append = @_; |
---|
| 680 | my $oldfilter = BarnOwl::getfilter($filter); |
---|
| 681 | chomp $oldfilter; |
---|
[0b5168d] | 682 | my $newfilter = "$oldfilter $sep " . quote(@append); |
---|
| 683 | my $msgtext = "To filter " . quote($filter) . " $action\n" . quote(@append) . "\nto get\n$newfilter"; |
---|
[22b54a7] | 684 | if (BarnOwl::getvar('showfilterchange') eq 'on') { |
---|
| 685 | BarnOwl::admin_message("Filter", $msgtext); |
---|
| 686 | } |
---|
[1b9a163] | 687 | set_filter($filter, $newfilter); |
---|
[22b54a7] | 688 | return; |
---|
| 689 | } |
---|
| 690 | BarnOwl::new_variable_bool("showfilterchange", |
---|
| 691 | { default => 1, |
---|
| 692 | summary => 'Show modifications to filters by filterappend and friends.'}); |
---|
[ee183be] | 693 | |
---|
[1b9a163] | 694 | sub set_filter |
---|
| 695 | { |
---|
| 696 | my $filtername = shift; |
---|
| 697 | my $filtertext = shift; |
---|
| 698 | my $cmd = 'filter ' . BarnOwl::quote($filtername) . ' ' . $filtertext; |
---|
| 699 | BarnOwl::command($cmd); |
---|
| 700 | } |
---|
| 701 | |
---|
[0b2afba] | 702 | =head3 time_format FORMAT |
---|
| 703 | |
---|
| 704 | Set the format for displaying times (variable timeformat) and redisplay |
---|
| 705 | messages. |
---|
| 706 | |
---|
| 707 | =cut |
---|
| 708 | |
---|
[d694c55] | 709 | my $timeformat = '%H:%M'; |
---|
[0b2afba] | 710 | |
---|
| 711 | sub time_format |
---|
| 712 | { |
---|
| 713 | my $function = shift; |
---|
| 714 | my $format = shift; |
---|
| 715 | if(!$format) |
---|
| 716 | { |
---|
| 717 | return $timeformat; |
---|
| 718 | } |
---|
| 719 | if(shift) |
---|
| 720 | { |
---|
| 721 | return "Wrong number of arguments for command"; |
---|
| 722 | } |
---|
| 723 | $timeformat = $format; |
---|
| 724 | redisplay(); |
---|
| 725 | } |
---|
| 726 | |
---|
[6700c605] | 727 | =head3 Receive window scrolling |
---|
| 728 | |
---|
| 729 | Permit scrolling the receive window left or right by arbitrary |
---|
| 730 | amounts (with a default of 10 characters). |
---|
| 731 | |
---|
| 732 | =cut |
---|
| 733 | |
---|
| 734 | sub recv_shift_left |
---|
| 735 | { |
---|
| 736 | my $func = shift; |
---|
| 737 | my $delta = shift; |
---|
[365950b] | 738 | $delta = 10 unless defined($delta) && int($delta) > 0; |
---|
[6700c605] | 739 | my $shift = BarnOwl::recv_getshift(); |
---|
| 740 | if($shift > 0) { |
---|
| 741 | BarnOwl::recv_setshift(max(0, $shift-$delta)); |
---|
| 742 | } else { |
---|
| 743 | return "Already full left"; |
---|
| 744 | } |
---|
| 745 | } |
---|
| 746 | |
---|
| 747 | sub recv_shift_right |
---|
| 748 | { |
---|
| 749 | my $func = shift; |
---|
| 750 | my $delta = shift; |
---|
[675a998] | 751 | $delta = 10 unless defined($delta) && int($delta) > 0; |
---|
[6700c605] | 752 | my $shift = BarnOwl::recv_getshift(); |
---|
| 753 | BarnOwl::recv_setshift($shift+$delta); |
---|
| 754 | } |
---|
| 755 | |
---|
[de3f641] | 756 | =head3 default_zephyr_signature |
---|
| 757 | |
---|
| 758 | Compute the default zephyr signature. |
---|
| 759 | |
---|
| 760 | =cut |
---|
| 761 | |
---|
| 762 | sub default_zephyr_signature |
---|
| 763 | { |
---|
[77c87b2] | 764 | my $zsig = getvar('zsig'); |
---|
[785ee77] | 765 | if (!defined($zsig) || $zsig eq '') { |
---|
| 766 | my $zsigproc = getvar('zsigproc'); |
---|
| 767 | if (defined($zsigproc) && $zsigproc ne '') { |
---|
[3c428d4] | 768 | $zsig = `$zsigproc`; |
---|
| 769 | } elsif (!defined($zsig = get_zephyr_variable('zwrite-signature'))) { |
---|
| 770 | $zsig = ((getpwuid($<))[6]); |
---|
| 771 | $zsig =~ s/,.*//; |
---|
| 772 | } |
---|
[de3f641] | 773 | } |
---|
[77c87b2] | 774 | chomp($zsig); |
---|
| 775 | return $zsig; |
---|
[de3f641] | 776 | } |
---|
| 777 | |
---|
[b120bd3] | 778 | =head3 random_zephyr_signature |
---|
| 779 | |
---|
| 780 | Retrieve a random line from ~/.zsigs (except those beginning with '#') |
---|
| 781 | and use it as the zephyr signature. |
---|
| 782 | |
---|
| 783 | =cut |
---|
| 784 | |
---|
| 785 | sub random_zephyr_signature |
---|
| 786 | { |
---|
| 787 | my $zsigfile = "$ENV{'HOME'}/.zsigs"; |
---|
| 788 | open my $file, '<', $zsigfile or die "Error opening file $zsigfile: $!"; |
---|
| 789 | my @lines = grep !(/^#/ || /^\s*$/), <$file>; |
---|
| 790 | close $file; |
---|
| 791 | return '' if !@lines; |
---|
| 792 | my $zsig = "$lines[int(rand(scalar @lines))]"; |
---|
| 793 | chomp $zsig; |
---|
| 794 | return $zsig; |
---|
| 795 | } |
---|
| 796 | |
---|
[ecd4edf] | 797 | =head3 register_idle_watcher %ARGS |
---|
| 798 | |
---|
| 799 | Call a callback whenever the amount of time the user becomes idle or comes |
---|
| 800 | back from being idle. |
---|
| 801 | |
---|
| 802 | You must include the following parameters: |
---|
| 803 | |
---|
| 804 | =over 4 |
---|
| 805 | |
---|
| 806 | =item name |
---|
| 807 | |
---|
| 808 | The name given to the idle watcher |
---|
| 809 | |
---|
| 810 | =item after |
---|
| 811 | |
---|
| 812 | How long the user must be idle, in seconds, before the callback is called. |
---|
| 813 | If the value is too small, you may have spurious or inaccurate calls. |
---|
| 814 | (The current lower limit is about 1 second.) |
---|
| 815 | |
---|
| 816 | =item callback |
---|
| 817 | |
---|
| 818 | The Perl subroutine that gets called when the user has been idle for C<AFTER> |
---|
| 819 | seconds, or comes back from being idle. The subroutine is passed one parameter, |
---|
| 820 | which is true if the user is currently idle, and false otherwise. |
---|
| 821 | |
---|
| 822 | =back |
---|
| 823 | |
---|
| 824 | This method returns a unique identifier which may be passed to |
---|
| 825 | L<BarnOwl::unregister_idle_watcher>. |
---|
| 826 | |
---|
| 827 | =cut |
---|
| 828 | |
---|
| 829 | =head3 unregister_idle_watcher UNIQUE_ID [...] |
---|
| 830 | |
---|
| 831 | Removed and returns the idle watcher specified by C<UNIQUE_ID>. |
---|
| 832 | You may specify multiple unique ids. |
---|
| 833 | |
---|
| 834 | =cut |
---|
| 835 | |
---|
| 836 | my %idle_watchers; |
---|
| 837 | tie %idle_watchers, 'Tie::RefHash'; |
---|
| 838 | |
---|
| 839 | $BarnOwl::Hooks::wakeup->add(sub { |
---|
| 840 | foreach my $idle_watcher (values %idle_watchers) { |
---|
| 841 | _wakeup_idle_watcher($idle_watcher); |
---|
| 842 | } |
---|
| 843 | }); |
---|
| 844 | |
---|
| 845 | sub _wakeup_idle_watcher { |
---|
| 846 | my ($idle_watcher, $offset) = @_; |
---|
| 847 | $offset = 0 unless defined $offset; |
---|
| 848 | # go unidle |
---|
| 849 | $idle_watcher->{idle_timer}->stop if $idle_watcher->{idle_timer}; |
---|
| 850 | undef $idle_watcher->{idle_timer}; |
---|
| 851 | $idle_watcher->{callback}->(0) if $idle_watcher->{is_idle}; |
---|
| 852 | $idle_watcher->{is_idle} = 0; |
---|
| 853 | |
---|
| 854 | # queue going idle |
---|
| 855 | $idle_watcher->{idle_timer} = BarnOwl::Timer->new({ |
---|
| 856 | name => $idle_watcher->{name}, |
---|
| 857 | after => $idle_watcher->{after} - $offset, |
---|
| 858 | cb => sub { |
---|
| 859 | $idle_watcher->{is_idle} = 1; |
---|
| 860 | $idle_watcher->{callback}->(1); |
---|
| 861 | } |
---|
| 862 | }); |
---|
| 863 | } |
---|
| 864 | |
---|
| 865 | sub register_idle_watcher { |
---|
| 866 | my %args = (@_); |
---|
| 867 | $idle_watchers{\%args} = \%args; |
---|
| 868 | _wakeup_idle_watcher(\%args, BarnOwl::getidletime); # make sure to queue up the idle/unidle events from this idle watcher |
---|
| 869 | return \%args; |
---|
| 870 | } |
---|
| 871 | |
---|
| 872 | sub unregister_idle_watcher { |
---|
| 873 | my ($id) = @_; |
---|
| 874 | $idle_watchers{$id}->{idle_timer}->stop if $idle_watchers{$id}->{idle_timer}; |
---|
| 875 | return delete $idle_watchers{$id}; |
---|
| 876 | } |
---|
| 877 | |
---|
[7589f0a] | 878 | # Stub for owl::startup / BarnOwl::startup, so it isn't bound to the |
---|
| 879 | # startup command. This may be redefined in a user's configfile. |
---|
| 880 | sub startup |
---|
| 881 | { |
---|
| 882 | } |
---|
| 883 | |
---|
[ee183be] | 884 | 1; |
---|