git.maemo.org Git - cinaest/blob - src/poster/movie-poster-factory.vala

   1 /* This file is part of Cinaest.
   2  *
   3  * Copyright (C) 2009 Philipp Zabel
   4  *
   5  * Cinaest is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * Cinaest is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with Cinaest. If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 using GLib;
  20
  21 namespace MoviePoster {
  22
  23         public delegate void RequestCallback (Gdk.Pixbuf movieposter, Movie movie);
  24
  25         public class Factory : Object {
  26                 private static Factory the_factory = null;
  27                 internal List<Request> requests;
  28                 internal dynamic DBus.Object server;
  29                 internal bool download_posters;
  30                 private GConf.Client gc;
  31                 private uint cxnid;
  32
  33                 construct {
  34                         try {
  35                                 var conn = DBus.Bus.get (DBus.BusType.SESSION);
  36                                 server = conn.get_object ("org.maemo.movieposter.GoogleImages",
  37                                                           "/org/maemo/movieposter/GoogleImages",
  38                                                           "org.maemo.movieposter.Provider");
  39                                 server.Fetched += this.on_poster_fetched;
  40                         } catch (Error e) {
  41                                 warning ("Couldn't connect to Google image downloader: %s\n", e.message);
  42                         }
  43                         gc = GConf.Client.get_default ();
  44
  45                         try {
  46                                 download_posters = gc.get_bool ("/apps/cinaest/download_posters");
  47                                 gc.add_dir ("/apps/cinaest", GConf.ClientPreloadType.ONELEVEL);
  48                                 cxnid = gc.notify_add ("/apps/cinaest/download_posters", on_download_posters_changed);
  49                         } catch (Error e) {
  50                                 stdout.printf ("Error installing GConf notification: %s\n", e.message);
  51                         }
  52                 }
  53
  54                 private static void on_download_posters_changed (GConf.Client gc, uint cxnid, GConf.Entry entry) {
  55                         the_factory.download_posters = entry.get_value ().get_bool ();
  56                 }
  57
  58                 public static Factory get_instance () {
  59                         if (the_factory == null)
  60                                 the_factory = new MoviePoster.Factory ();
  61                         return the_factory;
  62                 }
  63
  64                 public int queue (Movie movie, RequestCallback callback) throws Error {
  65                         string path = get_path (movie);
  66
  67                         if (FileUtils.test (path, FileTest.IS_REGULAR)) {
  68                                 // TODO: make this async?
  69                                 var pixbuf = new Gdk.Pixbuf.from_file_at_size (path, 268, 424);
  70                                 callback (pixbuf, movie);
  71                         } else if (server != null && download_posters) {
  72                                 var request = new Request ();
  73
  74                                 request.handle = server.Fetch (movie.title.down (), movie.year.to_string (), "movie");
  75                                 request.movie = movie;
  76                                 request.callback = callback;
  77                                 request.width = 268;
  78                                 request.height = 424;
  79                                 requests.append (request);
  80                         }
  81                         return 0;
  82                 }
  83
  84                 public int queue_thumbnail (Movie movie, uint width, uint height, bool cropped, RequestCallback callback) throws Error {
  85                         string path = get_path_thumbnail (movie);
  86
  87                         if (FileUtils.test (path, FileTest.IS_REGULAR)) {
  88                                 // TODO: make this async?
  89                                 var pixbuf = new Gdk.Pixbuf.from_file_at_size (path, (int) width, (int) height);
  90                                 callback (pixbuf, movie);
  91                         } else if (server != null && download_posters) {
  92                                 var request = new Request ();
  93
  94                                 request.handle = server.FetchThumbnail (movie.title.down (), movie.year.to_string (), "movie");
  95                                 request.movie = movie;
  96                                 request.callback = callback;
  97                                 request.width = (int) width;
  98                                 request.height = (int) height;
  99                                 requests.append (request);
 100                         }
 101                         return 0;
 102                 }
 103
 104                 private void on_poster_fetched (dynamic DBus.Object server, int handle, string path) {
 105                         Request request = null;
 106                         foreach (Request r in requests) {
 107                                 if (r.handle == handle) {
 108                                         request = r;
 109                                         break;
 110                                 }
 111                         }
 112                         if (request == null)
 113                                 return;
 114                         try {
 115                                 var pixbuf = new Gdk.Pixbuf.from_file_at_size (path, request.width, request.height);
 116
 117                                 requests.remove (request);
 118                                 request.callback (pixbuf, request.movie);
 119                                 return;
 120                         } catch (Error e) {
 121                                 warning ("Failed to open poster: %s\n", e.message);
 122                         }
 123                 }
 124
 125                 public void join () {
 126                 }
 127
 128                 public static void factory_remove (Movie movie) {
 129                 }
 130
 131                 public static void factory_clean_cache (int max_size, time_t min_mtime) {
 132                 }
 133
 134                 public void clear_queue () {
 135                         if (server != null) {
 136                                 foreach (Request r in requests)
 137                                         server.Unqueue (r.handle);
 138                         }
 139                         requests = null;
 140                 }
 141         }
 142
 143         public class Request {
 144                 public int handle;
 145                 public Movie movie;
 146                 public RequestCallback callback;
 147                 public int width;
 148                 public int height;
 149
 150                 public void unqueue () {
 151                         if (Factory.get_instance ().server != null)
 152                                 Factory.get_instance ().server.Unqueue (this.handle);
 153
 154                         Factory.get_instance ().requests.remove (this);
 155                 }
 156
 157                 public void join () {
 158                 }
 159         }
 160
 161         public static bool is_cached (Movie movie) {
 162                 string filename = get_path (movie);
 163                 if (FileUtils.test (filename, FileTest.IS_REGULAR))
 164                         return true;
 165                 else
 166                         return false;
 167         }
 168
 169         public static string get_path (Movie movie) {
 170                 return Path.build_filename (Environment.get_user_cache_dir (), "media-art", "movie-" +
 171                                             Checksum.compute_for_string (ChecksumType.MD5, movie.title.down ()) + "-" +
 172                                             Checksum.compute_for_string (ChecksumType.MD5, movie.year.to_string ()) + ".jpeg");
 173         }
 174
 175         public static string get_path_thumbnail (Movie movie) {
 176                 return Path.build_filename (Environment.get_tmp_dir (), "cinaest-thumbnails", "movie-" +
 177                                             Checksum.compute_for_string (ChecksumType.MD5, movie.title.down ()) + "-" +
 178                                             Checksum.compute_for_string (ChecksumType.MD5, movie.year.to_string ()) + ".jpeg");
 179         }
 180 }
 181