vcs.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                         download_posters = gc.get_bool ("/apps/cinaest/download_posters");
  46                         gc.add_dir ("/apps/cinaest", GConf.ClientPreloadType.ONELEVEL);
  47                         cxnid = gc.notify_add ("/apps/cinaest/download_posters", on_download_posters_changed);
  48                 }
  49
  50                 private static void on_download_posters_changed (GConf.Client gc, uint cxnid, GConf.Entry entry) {
  51                         the_factory.download_posters = entry.get_value ().get_bool ();
  52                 }
  53
  54                 public static Factory get_instance () {
  55                         if (the_factory == null)
  56                                 the_factory = new MoviePoster.Factory ();
  57                         return the_factory;
  58                 }
  59
  60                 public int queue (Movie movie, RequestCallback callback) throws Error {
  61                         string path = get_path (movie);
  62
  63                         if (FileUtils.test (path, FileTest.IS_REGULAR)) {
  64                                 // TODO: make this async?
  65                                 var pixbuf = new Gdk.Pixbuf.from_file_at_size (path, 268, 424);
  66                                 callback (pixbuf, movie);
  67                         } else if (server != null && download_posters) {
  68                                 var request = new Request ();
  69
  70                                 request.handle = server.fetch (movie.title.down (), movie.year.to_string (), "movie");
  71                                 request.movie = movie;
  72                                 request.callback = callback;
  73                                 request.width = 268;
  74                                 request.height = 424;
  75                                 requests.append (request);
  76                         }
  77                         return 0;
  78                 }
  79
  80                 public int queue_thumbnail (Movie movie, uint width, uint height, bool cropped, RequestCallback callback) throws Error {
  81                         string path = get_path_thumbnail (movie);
  82
  83                         if (FileUtils.test (path, FileTest.IS_REGULAR)) {
  84                                 // TODO: make this async?
  85                                 var pixbuf = new Gdk.Pixbuf.from_file_at_size (path, (int) width, (int) height);
  86                                 callback (pixbuf, movie);
  87                         } else if (server != null && download_posters) {
  88                                 var request = new Request ();
  89
  90                                 request.handle = server.fetch_thumbnail (movie.title.down (), movie.year.to_string (), "movie");
  91                                 request.movie = movie;
  92                                 request.callback = callback;
  93                                 request.width = (int) width;
  94                                 request.height = (int) height;
  95                                 requests.append (request);
  96                         }
  97                         return 0;
  98                 }
  99
 100                 private void on_poster_fetched (dynamic DBus.Object server, int handle, string path) {
 101                         Request request = null;
 102                         foreach (Request r in requests) {
 103                                 if (r.handle == handle) {
 104                                         request = r;
 105                                         break;
 106                                 }
 107                         }
 108                         if (request == null)
 109                                 return;
 110                         try {
 111                                 var pixbuf = new Gdk.Pixbuf.from_file_at_size (path, request.width, request.height);
 112
 113                                 requests.remove (request);
 114                                 request.callback (pixbuf, request.movie);
 115                                 return;
 116                         } catch (Error e) {
 117                                 warning ("Failed to open poster: %s\n", e.message);
 118                         }
 119                 }
 120
 121                 public void join () {
 122                 }
 123
 124                 public static void factory_remove (Movie movie) {
 125                 }
 126
 127                 public static void factory_clean_cache (int max_size, time_t min_mtime) {
 128                 }
 129
 130                 public void clear_queue () {
 131                         if (server != null) {
 132                                 foreach (Request r in requests)
 133                                         server.unqueue (r.handle);
 134                         }
 135                         requests = null;
 136                 }
 137         }
 138
 139         public class Request {
 140                 public int handle;
 141                 public Movie movie;
 142                 public RequestCallback callback;
 143                 public int width;
 144                 public int height;
 145
 146                 public void unqueue () {
 147                         if (Factory.get_instance ().server != null)
 148                                 Factory.get_instance ().server.unqueue (this.handle);
 149
 150                         Factory.get_instance ().requests.remove (this);
 151                 }
 152
 153                 public void join () {
 154                 }
 155         }
 156
 157         public static bool is_cached (Movie movie) {
 158                 string filename = get_path (movie);
 159                 if (FileUtils.test (filename, FileTest.IS_REGULAR))
 160                         return true;
 161                 else
 162                         return false;
 163         }
 164
 165         public static string get_path (Movie movie) {
 166                 return Path.build_filename (Environment.get_user_cache_dir (), "media-art", "movie-" +
 167                                             Checksum.compute_for_string (ChecksumType.MD5, movie.title.down ()) + "-" +
 168                                             Checksum.compute_for_string (ChecksumType.MD5, movie.year.to_string ()) + ".jpeg");
 169         }
 170
 171         public static string get_path_thumbnail (Movie movie) {
 172                 return Path.build_filename (Environment.get_tmp_dir (), "cinaest-thumbnails", "movie-" +
 173                                             Checksum.compute_for_string (ChecksumType.MD5, movie.title.down ()) + "-" +
 174                                             Checksum.compute_for_string (ChecksumType.MD5, movie.year.to_string ()) + ".jpeg");
 175         }
 176 }
 177