shell/ev-jobs.c

   1 #include "ev-jobs.h"
   2 #include "ev-job-queue.h"
   3 #include "ev-document-thumbnails.h"
   4 #include "ev-document-links.h"
   5 #include "ev-async-renderer.h"
   6
   7 static void ev_job_init                 (EvJob               *job);
   8 static void ev_job_class_init           (EvJobClass          *class);
   9 static void ev_job_links_init           (EvJobLinks          *job);
  10 static void ev_job_links_class_init     (EvJobLinksClass     *class);
  11 static void ev_job_render_init          (EvJobRender         *job);
  12 static void ev_job_render_class_init    (EvJobRenderClass    *class);
  13 static void ev_job_thumbnail_init       (EvJobThumbnail      *job);
  14 static void ev_job_thumbnail_class_init (EvJobThumbnailClass *class);
  15 static void ev_job_load_init            (EvJobLoad           *job);
  16 static void ev_job_load_class_init      (EvJobLoadClass      *class);
  17
  18 enum
  19 {
  20         FINISHED,
  21         LAST_SIGNAL
  22 };
  23
  24 static guint job_signals[LAST_SIGNAL] = { 0 };
  25
  26 G_DEFINE_TYPE (EvJob, ev_job, G_TYPE_OBJECT)
  27 G_DEFINE_TYPE (EvJobLinks, ev_job_links, EV_TYPE_JOB)
  28 G_DEFINE_TYPE (EvJobRender, ev_job_render, EV_TYPE_JOB)
  29 G_DEFINE_TYPE (EvJobThumbnail, ev_job_thumbnail, EV_TYPE_JOB)
  30 G_DEFINE_TYPE (EvJobLoad, ev_job_load, EV_TYPE_JOB)
  31
  32 static void ev_job_init (EvJob *job) { /* Do Nothing */ }
  33
  34 static void
  35 ev_job_dispose (GObject *object)
  36 {
  37         EvJob *job;
  38
  39         job = EV_JOB (object);
  40
  41         if (job->document) {
  42                 g_object_unref (job->document);
  43                 job->document = NULL;
  44         }
  45
  46         (* G_OBJECT_CLASS (ev_job_parent_class)->dispose) (object);
  47 }
  48
  49 static void
  50 ev_job_class_init (EvJobClass *class)
  51 {
  52         GObjectClass *oclass;
  53
  54         oclass = G_OBJECT_CLASS (class);
  55
  56         oclass->dispose = ev_job_dispose;
  57
  58         job_signals [FINISHED] =
  59                 g_signal_new ("finished",
  60                               EV_TYPE_JOB,
  61                               G_SIGNAL_RUN_LAST,
  62                               G_STRUCT_OFFSET (EvJobClass, finished),
  63                               NULL, NULL,
  64                               g_cclosure_marshal_VOID__VOID,
  65                               G_TYPE_NONE, 0);
  66 }
  67
  68
  69 static void ev_job_links_init (EvJobLinks *job) { /* Do Nothing */ }
  70
  71 static void
  72 ev_job_links_dispose (GObject *object)
  73 {
  74         EvJobLinks *job;
  75
  76         job = EV_JOB_LINKS (object);
  77
  78         if (job->model) {
  79                 g_object_unref (job->model);
  80                 job->model = NULL;
  81         }
  82
  83         (* G_OBJECT_CLASS (ev_job_links_parent_class)->dispose) (object);
  84 }
  85
  86 static void
  87 ev_job_links_class_init (EvJobLinksClass *class)
  88 {
  89         GObjectClass *oclass;
  90
  91         oclass = G_OBJECT_CLASS (class);
  92
  93         oclass->dispose = ev_job_links_dispose;
  94 }
  95
  96
  97 static void ev_job_render_init (EvJobRender *job) { /* Do Nothing */ }
  98
  99 static void
 100 ev_job_render_dispose (GObject *object)
 101 {
 102         EvJobRender *job;
 103
 104         job = EV_JOB_RENDER (object);
 105
 106         if (job->pixbuf) {
 107                 g_object_unref (job->pixbuf);
 108                 job->pixbuf = NULL;
 109         }
 110
 111         (* G_OBJECT_CLASS (ev_job_render_parent_class)->dispose) (object);
 112 }
 113
 114 static void
 115 ev_job_render_class_init (EvJobRenderClass *class)
 116 {
 117         GObjectClass *oclass;
 118
 119         oclass = G_OBJECT_CLASS (class);
 120
 121         oclass->dispose = ev_job_render_dispose;
 122 }
 123
 124 static void ev_job_thumbnail_init (EvJobThumbnail *job) { /* Do Nothing */ }
 125
 126 static void
 127 ev_job_thumbnail_dispose (GObject *object)
 128 {
 129         EvJobThumbnail *job;
 130
 131         job = EV_JOB_THUMBNAIL (object);
 132
 133         if (job->thumbnail) {
 134                 g_object_unref (job->thumbnail);
 135                 job->thumbnail = NULL;
 136         }
 137
 138         (* G_OBJECT_CLASS (ev_job_thumbnail_parent_class)->dispose) (object);
 139 }
 140
 141 static void
 142 ev_job_thumbnail_class_init (EvJobThumbnailClass *class)
 143 {
 144         GObjectClass *oclass;
 145
 146         oclass = G_OBJECT_CLASS (class);
 147
 148         oclass->dispose = ev_job_thumbnail_dispose;
 149 }
 150
 151 static void ev_job_load_init (EvJobLoad *job) { /* Do Nothing */ }
 152
 153 static void
 154 ev_job_load_dispose (GObject *object)
 155 {
 156         EvJobLoad *job;
 157
 158         job = EV_JOB_LOAD (object);
 159
 160         if (job->uri) {
 161                 g_free (job->uri);
 162                 job->uri = NULL;
 163         }
 164
 165         if (job->error) {
 166                 g_error_free (job->error);
 167                 job->error = NULL;
 168         }
 169
 170         (* G_OBJECT_CLASS (ev_job_load_parent_class)->dispose) (object);
 171 }
 172
 173 static void
 174 ev_job_load_class_init (EvJobLoadClass *class)
 175 {
 176         GObjectClass *oclass;
 177
 178         oclass = G_OBJECT_CLASS (class);
 179
 180         oclass->dispose = ev_job_load_dispose;
 181 }
 182
 183 /* Public functions */
 184 void
 185 ev_job_finished (EvJob *job)
 186 {
 187         g_return_if_fail (EV_IS_JOB (job));
 188
 189         g_signal_emit (job, job_signals[FINISHED], 0);
 190 }
 191
 192 EvJob *
 193 ev_job_links_new (EvDocument *document)
 194 {
 195         EvJob *job;
 196
 197         job = g_object_new (EV_TYPE_JOB_LINKS, NULL);
 198         job->document = g_object_ref (document);
 199
 200         return job;
 201 }
 202
 203 void
 204 ev_job_links_run (EvJobLinks *job)
 205 {
 206         g_return_if_fail (EV_IS_JOB_LINKS (job));
 207
 208         ev_document_doc_mutex_lock ();
 209         job->model = ev_document_links_get_links_model (EV_DOCUMENT_LINKS (EV_JOB (job)->document));
 210         EV_JOB (job)->finished = TRUE;
 211         ev_document_doc_mutex_unlock ();
 212 }
 213
 214
 215 EvJob *
 216 ev_job_render_new (EvDocument *document,
 217                    gint        page,
 218                    double      scale,
 219                    gint        width,
 220                    gint        height,
 221                    gboolean    include_links)
 222 {
 223         EvJobRender *job;
 224
 225         job = g_object_new (EV_TYPE_JOB_RENDER, NULL);
 226
 227         EV_JOB (job)->document = g_object_ref (document);
 228         job->page = page;
 229         job->scale = scale;
 230         job->target_width = width;
 231         job->target_height = height;
 232         job->include_links = include_links;
 233
 234         if (EV_IS_ASYNC_RENDERER (document)) {
 235                 EV_JOB (job)->async = TRUE;
 236         }
 237
 238         return EV_JOB (job);
 239 }
 240
 241 static void
 242 render_finished_cb (EvDocument *document, GdkPixbuf *pixbuf, EvJobRender *job)
 243 {
 244         g_signal_handlers_disconnect_by_func (EV_JOB (job)->document,
 245                                               render_finished_cb, job);
 246
 247         EV_JOB (job)->finished = TRUE;
 248         job->pixbuf = g_object_ref (pixbuf);
 249         ev_job_finished (EV_JOB (job));
 250 }
 251
 252 void
 253 ev_job_render_run (EvJobRender *job)
 254 {
 255         g_return_if_fail (EV_IS_JOB_RENDER (job));
 256
 257         ev_document_doc_mutex_lock ();
 258
 259         if (EV_JOB (job)->async) {
 260                 EvAsyncRenderer *renderer = EV_ASYNC_RENDERER (EV_JOB (job)->document);
 261                 ev_async_renderer_render_pixbuf (renderer, job->page, job->scale);
 262                 g_signal_connect (EV_JOB (job)->document, "render_finished",
 263                                   G_CALLBACK (render_finished_cb), job);
 264         } else {
 265                 job->pixbuf = ev_document_render_pixbuf (EV_JOB (job)->document,
 266                                                          job->page,
 267                                                          job->scale);
 268                 if (job->include_links)
 269                         job->link_mapping = ev_document_get_links (EV_JOB (job)->document, job->page);
 270
 271                 EV_JOB (job)->finished = TRUE;
 272         }
 273
 274         ev_document_doc_mutex_unlock ();
 275 }
 276
 277 EvJob *
 278 ev_job_thumbnail_new (EvDocument *document,
 279                       gint        page,
 280                       gint        requested_width)
 281 {
 282         EvJobThumbnail *job;
 283
 284         job = g_object_new (EV_TYPE_JOB_THUMBNAIL, NULL);
 285
 286         EV_JOB (job)->document = g_object_ref (document);
 287         job->page = page;
 288         job->requested_width = requested_width;
 289
 290         return EV_JOB (job);
 291 }
 292
 293 void
 294 ev_job_thumbnail_run (EvJobThumbnail *job)
 295 {
 296         g_return_if_fail (EV_IS_JOB_THUMBNAIL (job));
 297
 298         ev_document_doc_mutex_lock ();
 299
 300         job->thumbnail =
 301                 ev_document_thumbnails_get_thumbnail (EV_DOCUMENT_THUMBNAILS (EV_JOB (job)->document),
 302                                                       job->page,
 303                                                       job->requested_width,
 304                                                       TRUE);
 305         EV_JOB (job)->finished = TRUE;
 306
 307         ev_document_doc_mutex_unlock ();
 308 }
 309
 310 EvJob *
 311 ev_job_load_new (EvDocument *document,
 312                  const gchar *uri)
 313 {
 314         EvJobLoad *job;
 315
 316         job = g_object_new (EV_TYPE_JOB_LOAD, NULL);
 317
 318         EV_JOB (job)->document = g_object_ref (document);
 319         job->uri = g_strdup (uri);
 320
 321         return EV_JOB (job);
 322 }
 323
 324 void
 325 ev_job_load_run (EvJobLoad *job)
 326 {
 327         g_return_if_fail (EV_IS_JOB_LOAD (job));
 328
 329         ev_document_doc_mutex_lock ();
 330
 331         if (job->error) {
 332                 g_error_free (job->error);
 333                 job->error = NULL;
 334         }
 335
 336         ev_document_load (EV_JOB(job)->document, job->uri, &job->error);
 337
 338         EV_JOB (job)->finished = TRUE;
 339
 340         ev_document_doc_mutex_unlock ();
 341 }
 342
 343