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                 private Gdk.Pixbuf poster_failed;
  33                 private Gdk.Pixbuf icon_failed;
  34
  35                 construct {
  36                         try {
  37                                 var conn = DBus.Bus.get (DBus.BusType.SESSION);
  38                                 server = conn.get_object ("org.maemo.movieposter.IMDb",
  39                                                           "/org/maemo/movieposter/IMDb",
  40                                                           "org.maemo.movieposter.Provider");
  41                                 server.Fetched.connect (this.on_poster_fetched);
  42                                 server.Failed.connect (this.on_poster_failed);
  43                         } catch (Error e) {
  44                                 warning ("Couldn't connect to IMDb poster downloader: %s\n", e.message);
  45                         }
  46                         gc = GConf.Client.get_default ();
  47
  48                         try {
  49                                 download_posters = gc.get_bool ("/apps/cinaest/download_posters");
  50                                 gc.add_dir ("/apps/cinaest", GConf.ClientPreloadType.ONELEVEL);
  51                                 cxnid = gc.notify_add ("/apps/cinaest/download_posters", on_download_posters_changed);
  52                         } catch (Error e) {
  53                                 stdout.printf ("Error installing GConf notification: %s\n", e.message);
  54                         }
  55                 }
  56
  57                 private static void on_download_posters_changed (GConf.Client gc, uint cxnid, GConf.Entry entry) {
  58                         the_factory.download_posters = entry.get_value ().get_bool ();
  59                 }
  60
  61                 public static Factory get_instance () {
  62                         if (the_factory == null)
  63                                 the_factory = new MoviePoster.Factory ();
  64                         return the_factory;
  65                 }
  66
  67                 public int queue (Movie movie, RequestCallback callback) throws Error {
  68                         string path = get_path (movie);
  69
  70                         foreach (Request request in requests)
  71                                 if (request.movie == movie)
  72                                         return 0;
  73
  74                         if (FileUtils.test (path, FileTest.IS_REGULAR)) {
  75                                 // TODO: make this async?
  76                                 var pixbuf = new Gdk.Pixbuf.from_file_at_scale (path, 288, 400, true);
  77                                 callback (pixbuf, movie);
  78                         } else if (server != null && download_posters) {
  79                                 var request = new Request ();
  80
  81                                 request.handle = server.Fetch (movie.title, movie.year.to_string (), "movie");
  82                                 request.movie = movie;
  83                                 request.callback = callback;
  84                                 request.width = 288;
  85                                 request.height = 400;
  86                                 requests.append (request);
  87                         }
  88                         return 0;
  89                 }
  90
  91                 public int queue_thumbnail (Movie movie, uint width, uint height, bool cropped, RequestCallback callback) throws Error {
  92                         string path = get_path_thumbnail (movie);
  93
  94                         foreach (Request request in requests)
  95                                 if (request.movie == movie)
  96                                         return 0;
  97
  98                         if (FileUtils.test (path, FileTest.IS_REGULAR)) {
  99                                 // TODO: make this async?
 100                                 var pixbuf = new Gdk.Pixbuf.from_file_at_scale (path, (int) width, (int) height, true);
 101
 102                                 callback (pixbuf, movie);
 103                         } else if (server != null && download_posters) {
 104                                 var request = new Request ();
 105
 106                                 request.handle = server.FetchThumbnail (movie.title, movie.year.to_string (), "movie");
 107                                 request.movie = movie;
 108                                 request.callback = callback;
 109                                 request.width = (int) width;
 110                                 request.height = (int) height;
 111                                 requests.append (request);
 112                         }
 113                         return 0;
 114                 }
 115
 116                 private void on_poster_fetched (dynamic DBus.Object server, int handle, string path) {
 117                         Request request = null;
 118                         foreach (Request r in requests) {
 119                                 if (r.handle == handle) {
 120                                         request = r;
 121                                         break;
 122                                 }
 123                         }
 124                         if (request == null)
 125                                 return;
 126                         try {
 127                                 var pixbuf = new Gdk.Pixbuf.from_file_at_size (path, request.width, request.height);
 128
 129                                 requests.remove (request);
 130                                 request.callback (pixbuf, request.movie);
 131                                 return;
 132                         } catch (Error e) {
 133                                 warning ("Failed to open poster: %s\n", e.message);
 134                         }
 135                 }
 136
 137                 private void on_poster_failed (dynamic DBus.Object server, int handle) {
 138                         Request request = null;
 139                         foreach (Request r in requests) {
 140                                 if (r.handle == handle) {
 141                                         request = r;
 142                                         break;
 143                                 }
 144                         }
 145                         if (request == null)
 146                                 return;
 147                         requests.remove (request);
 148                         request.callback (failed_poster (request.width, request.height), request.movie);
 149                 }
 150
 151                 private Gdk.Pixbuf failed_poster (int width, int height) {
 152                         if (width == Poster.ICON_WIDTH && height == Poster.ICON_HEIGHT) {
 153                                 if (icon_failed == null) {
 154                                         // An empty icon for the list view
 155                                         icon_failed = new Gdk.Pixbuf (Gdk.Colorspace.RGB, true, 8, Poster.ICON_WIDTH, Poster.ICON_HEIGHT);
 156                                         icon_failed.fill (0);
 157                                 }
 158                                 return icon_failed;
 159                         }
 160                         if (width == Poster.SMALL_WIDTH && height == Poster.SMALL_HEIGHT) {
 161                                 if (poster_failed == null) try {
 162                                         // Broken image icon for the poster view
 163                                         var no_pic = new Gdk.Pixbuf.from_file ("/usr/share/icons/hicolor/64x64/hildon/imageviewer_no_pic.png");
 164                                         poster_failed = new Gdk.Pixbuf (Gdk.Colorspace.RGB, true, 8, Poster.SMALL_WIDTH, Poster.SMALL_HEIGHT);
 165                                         poster_failed.fill (0);
 166                                         no_pic.copy_area (0, 0, no_pic.width, no_pic.height, poster_failed,
 167                                                           (Poster.SMALL_WIDTH - no_pic.width) / 2, (Poster.SMALL_HEIGHT - no_pic.height) / 2);
 168                                 } catch (Error e) {
 169                                         critical ("Missing imageviewer_no_pic icon: %s\n", e.message);
 170                                 }
 171                                 return poster_failed;
 172                         }
 173                         return null;
 174                 }
 175
 176                 public void join () {
 177                 }
 178
 179                 public static void factory_remove (Movie movie) {
 180                 }
 181
 182                 public static void factory_clean_cache (int max_size, time_t min_mtime) {
 183                 }
 184
 185                 public void clear_queue () {
 186                         if (server != null) {
 187                                 foreach (Request r in requests)
 188                                         server.Unqueue (r.handle);
 189                         }
 190                         requests = null;
 191                 }
 192         }
 193
 194         public class Request {
 195                 public int handle;
 196                 public Movie movie;
 197                 public RequestCallback callback;
 198                 public int width;
 199                 public int height;
 200
 201                 public void unqueue () {
 202                         if (Factory.get_instance ().server != null)
 203                                 Factory.get_instance ().server.Unqueue (this.handle);
 204
 205                         Factory.get_instance ().requests.remove (this);
 206                 }
 207
 208                 public void join () {
 209                 }
 210         }
 211
 212         public static bool is_cached (Movie movie) {
 213                 string filename = get_path (movie);
 214                 if (FileUtils.test (filename, FileTest.IS_REGULAR))
 215                         return true;
 216                 else
 217                         return false;
 218         }
 219
 220         public static string get_path (Movie movie) {
 221                 return Path.build_filename (Environment.get_user_cache_dir (), "media-art", "movie-" +
 222                                             Checksum.compute_for_string (ChecksumType.MD5, movie.title.down ()) + "-" +
 223                                             Checksum.compute_for_string (ChecksumType.MD5, movie.year.to_string ()) + ".jpeg");
 224         }
 225
 226         public static string get_path_thumbnail (Movie movie) {
 227                 return Path.build_filename (Environment.get_tmp_dir (), "cinaest-thumbnails", "movie-" +
 228                                             Checksum.compute_for_string (ChecksumType.MD5, movie.title.down ()) + "-" +
 229                                             Checksum.compute_for_string (ChecksumType.MD5, movie.year.to_string ()) + ".jpeg");
 230         }
 231 }
 232