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Diffstat (limited to 'src/familiar-players-db.vala')
| -rw-r--r-- | src/familiar-players-db.vala | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/familiar-players-db.vala b/src/familiar-players-db.vala new file mode 100644 index 0000000..5ed209b --- /dev/null +++ b/src/familiar-players-db.vala @@ -0,0 +1,152 @@ +/* +Copyright 2010 Canonical Ltd. + +Authors: + Conor Curran <conor.curran@canonical.com> + +This program is free software: you can redistribute it and/or modify it +under the terms of the GNU General Public License version 3, as published +by the Free Software Foundation. + +This program is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranties of +MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR +PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along +with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +using Gee; +using GLib.Path; +using GLib.DirUtils; +using GLib.FileUtils; +using GLib.Timeout; +using GLib.Environment; + +// TODO: more refactoring needed here +public class FamiliarPlayersDB : GLib.Object +{ + private const string GROUP_NAME = "Seen Database"; + private const string KEY_NAME = "DesktopFiles"; + private HashMap<string, bool> players_DB; + private string file_name; + private string dir_name; + private KeyFile key_file; + private uint write_id; + + public FamiliarPlayersDB() + { + this.write_id = 0; + this.players_DB = new HashMap<string, bool>(); + this.dir_name = build_filename(get_user_cache_dir(), "indicators", "sound"); + this.file_name = build_filename(this.dir_name, "familiar-players-db.keyfile"); + if(create_key_file() && check_for_keys() && load_data_from_key_file()){ + debug("keyfiles in place and ready for action"); + } + else{ + this.key_file = null; + warning("FamiliarPlayersDB:: problems loading key file - can't go any further"); + } + } + + private bool create_key_file(){ + if (test(this.file_name, GLib.FileTest.EXISTS)) { + this.key_file = new KeyFile(); + try{ + if (this.key_file.load_from_file(this.file_name, KeyFileFlags.NONE) == true) { + return true; + } + } + catch(FileError e){ + warning("FamiliarPlayersDB - error trying to load KeyFile"); + } + } + return false; + } + + private bool check_for_keys(){ + try{ + if(this.key_file.has_key(GROUP_NAME, KEY_NAME) == true){ + return true; + } + } + catch(KeyFileError e){ + return false; + } + warning("Seen DB '%s' does not have key '%s' in group '%s'", this.file_name, KEY_NAME, GROUP_NAME); + return false; + } + + private bool load_data_from_key_file() + { + try{ + string[] desktops = this.key_file.get_string_list(GROUP_NAME, + KEY_NAME); + + int i = 0; + while (desktops[i] != null) { + this.players_DB.set(desktops[i], true); + } + return true; + } + catch(FileError error){ + warning("Error loading the Desktop string list"); + return false; + } + } + + private bool write_db() + { + KeyFile keyfile = new KeyFile(); + string[] desktops = {}; + //Set<string> keys = this.players_DB.keys; + foreach(string key in this.players_DB.keys){ + desktops += key; + } + keyfile.set_string_list(GROUP_NAME, + KEY_NAME, + desktops); + size_t data_length; + string data = null; + try{ + data = keyfile.to_data(out data_length); + } + catch(Error e){ + warning("Problems dumping keyfile to a string"); + return false; + } + + if(create_with_parents(this.dir_name, 0700) != 0){ + warning("Unable to make directory: %s", this.dir_name); + return false; + } + + try{ + if(set_contents(this.file_name, data, (ssize_t)data_length) == false){ + warning("Unable to write out file '%s'", this.file_name); + } + } + catch(FileError err){ + warning("Unable to write out file '%s'", this.file_name); + } + return true; + } + + public void db_add(string desktop) + { + if(already_familiar(desktop) == false){ + if(this.write_id != 0){ + Source.remove(this.write_id); + this.write_id = 0; + } + this.write_id = Timeout.add_seconds(60, write_db); + this.players_DB.set(desktop.dup(), true); + } + } + + public bool already_familiar(string desktop) + { + return this.players_DB.get(desktop); + } +}
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