libview/ev-jobs.c

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2008 Carlos Garcia Campos <carlosgc@gnome.org>
   4  *  Copyright (C) 2005 Red Hat, Inc
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <config.h>
  22
  23 #include "ev-jobs.h"
  24 #include "ev-document-thumbnails.h"
  25 #include "ev-document-links.h"
  26 #include "ev-document-images.h"
  27 #include "ev-document-forms.h"
  28 #include "ev-file-exporter.h"
  29 #include "ev-document-factory.h"
  30 #include "ev-document-misc.h"
  31 #include "ev-file-helpers.h"
  32 #include "ev-document-fonts.h"
  33 #include "ev-document-security.h"
  34 #include "ev-document-find.h"
  35 #include "ev-document-layers.h"
  36 #include "ev-document-print.h"
  37 #include "ev-document-annotations.h"
  38 #include "ev-document-attachments.h"
  39 #include "ev-debug.h"
  40
  41 #include <errno.h>
  42 #include <glib/gstdio.h>
  43 #include <glib/gi18n-lib.h>
  44 #include <unistd.h>
  45
  46 static void ev_job_init                   (EvJob                 *job);
  47 static void ev_job_class_init             (EvJobClass            *class);
  48 static void ev_job_links_init             (EvJobLinks            *job);
  49 static void ev_job_links_class_init       (EvJobLinksClass       *class);
  50 static void ev_job_attachments_init       (EvJobAttachments      *job);
  51 static void ev_job_attachments_class_init (EvJobAttachmentsClass *class);
  52 static void ev_job_render_init            (EvJobRender           *job);
  53 static void ev_job_render_class_init      (EvJobRenderClass      *class);
  54 static void ev_job_page_data_init         (EvJobPageData         *job);
  55 static void ev_job_page_data_class_init   (EvJobPageDataClass    *class);
  56 static void ev_job_thumbnail_init         (EvJobThumbnail        *job);
  57 static void ev_job_thumbnail_class_init   (EvJobThumbnailClass   *class);
  58 static void ev_job_load_init              (EvJobLoad             *job);
  59 static void ev_job_load_class_init        (EvJobLoadClass        *class);
  60 static void ev_job_save_init              (EvJobSave             *job);
  61 static void ev_job_save_class_init        (EvJobSaveClass        *class);
  62 static void ev_job_find_init              (EvJobFind             *job);
  63 static void ev_job_find_class_init        (EvJobFindClass        *class);
  64 static void ev_job_layers_init            (EvJobLayers           *job);
  65 static void ev_job_layers_class_init      (EvJobLayersClass      *class);
  66 static void ev_job_export_init            (EvJobExport           *job);
  67 static void ev_job_export_class_init      (EvJobExportClass      *class);
  68 static void ev_job_print_init             (EvJobPrint            *job);
  69 static void ev_job_print_class_init       (EvJobPrintClass       *class);
  70
  71 enum {
  72         CANCELLED,
  73         FINISHED,
  74         LAST_SIGNAL
  75 };
  76
  77 enum {
  78         FONTS_UPDATED,
  79         FONTS_LAST_SIGNAL
  80 };
  81
  82 enum {
  83         FIND_UPDATED,
  84         FIND_LAST_SIGNAL
  85 };
  86
  87 static guint job_signals[LAST_SIGNAL] = { 0 };
  88 static guint job_fonts_signals[FONTS_LAST_SIGNAL] = { 0 };
  89 static guint job_find_signals[FIND_LAST_SIGNAL] = { 0 };
  90
  91 G_DEFINE_ABSTRACT_TYPE (EvJob, ev_job, G_TYPE_OBJECT)
  92 G_DEFINE_TYPE (EvJobLinks, ev_job_links, EV_TYPE_JOB)
  93 G_DEFINE_TYPE (EvJobAttachments, ev_job_attachments, EV_TYPE_JOB)
  94 G_DEFINE_TYPE (EvJobRender, ev_job_render, EV_TYPE_JOB)
  95 G_DEFINE_TYPE (EvJobPageData, ev_job_page_data, EV_TYPE_JOB)
  96 G_DEFINE_TYPE (EvJobThumbnail, ev_job_thumbnail, EV_TYPE_JOB)
  97 G_DEFINE_TYPE (EvJobFonts, ev_job_fonts, EV_TYPE_JOB)
  98 G_DEFINE_TYPE (EvJobLoad, ev_job_load, EV_TYPE_JOB)
  99 G_DEFINE_TYPE (EvJobSave, ev_job_save, EV_TYPE_JOB)
 100 G_DEFINE_TYPE (EvJobFind, ev_job_find, EV_TYPE_JOB)
 101 G_DEFINE_TYPE (EvJobLayers, ev_job_layers, EV_TYPE_JOB)
 102 G_DEFINE_TYPE (EvJobExport, ev_job_export, EV_TYPE_JOB)
 103 G_DEFINE_TYPE (EvJobPrint, ev_job_print, EV_TYPE_JOB)
 104
 105 /* EvJob */
 106 static void
 107 ev_job_init (EvJob *job)
 108 {
 109         job->cancellable = g_cancellable_new ();
 110 }
 111
 112 static void
 113 ev_job_dispose (GObject *object)
 114 {
 115         EvJob *job;
 116
 117         job = EV_JOB (object);
 118
 119         if (job->document) {
 120                 g_object_unref (job->document);
 121                 job->document = NULL;
 122         }
 123
 124         if (job->cancellable) {
 125                 g_object_unref (job->cancellable);
 126                 job->cancellable = NULL;
 127         }
 128
 129         if (job->error) {
 130                 g_error_free (job->error);
 131                 job->error = NULL;
 132         }
 133
 134         (* G_OBJECT_CLASS (ev_job_parent_class)->dispose) (object);
 135 }
 136
 137 static void
 138 ev_job_class_init (EvJobClass *class)
 139 {
 140         GObjectClass *oclass;
 141
 142         oclass = G_OBJECT_CLASS (class);
 143
 144         oclass->dispose = ev_job_dispose;
 145
 146         job_signals[CANCELLED] =
 147                 g_signal_new ("cancelled",
 148                               EV_TYPE_JOB,
 149                               G_SIGNAL_RUN_LAST,
 150                               G_STRUCT_OFFSET (EvJobClass, cancelled),
 151                               NULL, NULL,
 152                               g_cclosure_marshal_VOID__VOID,
 153                               G_TYPE_NONE, 0);
 154         job_signals [FINISHED] =
 155                 g_signal_new ("finished",
 156                               EV_TYPE_JOB,
 157                               G_SIGNAL_RUN_FIRST,
 158                               G_STRUCT_OFFSET (EvJobClass, finished),
 159                               NULL, NULL,
 160                               g_cclosure_marshal_VOID__VOID,
 161                               G_TYPE_NONE, 0);
 162 }
 163
 164 static gboolean
 165 emit_finished (EvJob *job)
 166 {
 167         ev_debug_message (DEBUG_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 168
 169         job->idle_finished_id = 0;
 170
 171         if (job->cancelled) {
 172                 ev_debug_message (DEBUG_JOBS, "%s (%p) job was cancelled, do not emit finished", EV_GET_TYPE_NAME (job), job);
 173         } else {
 174                 ev_profiler_stop (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 175                 g_signal_emit (job, job_signals[FINISHED], 0);
 176         }
 177
 178         return FALSE;
 179 }
 180
 181 static void
 182 ev_job_emit_finished (EvJob *job)
 183 {
 184         ev_debug_message (DEBUG_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 185
 186         if (g_cancellable_is_cancelled (job->cancellable)) {
 187                 ev_debug_message (DEBUG_JOBS, "%s (%p) job was cancelled, returning", EV_GET_TYPE_NAME (job), job);
 188                 return;
 189         }
 190
 191         job->finished = TRUE;
 192
 193         if (job->run_mode == EV_JOB_RUN_THREAD) {
 194                 job->idle_finished_id =
 195                         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 196                                          (GSourceFunc)emit_finished,
 197                                          g_object_ref (job),
 198                                          (GDestroyNotify)g_object_unref);
 199         } else {
 200                 ev_profiler_stop (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 201                 g_signal_emit (job, job_signals[FINISHED], 0);
 202         }
 203 }
 204
 205 gboolean
 206 ev_job_run (EvJob *job)
 207 {
 208         EvJobClass *class = EV_JOB_GET_CLASS (job);
 209
 210         return class->run (job);
 211 }
 212
 213 void
 214 ev_job_cancel (EvJob *job)
 215 {
 216         if (job->cancelled || (job->finished && job->idle_finished_id == 0))
 217                 return;
 218
 219         ev_debug_message (DEBUG_JOBS, "job %s (%p) cancelled", EV_GET_TYPE_NAME (job), job);
 220         ev_profiler_stop (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 221
 222         /* This should never be called from a thread */
 223         job->cancelled = TRUE;
 224         g_cancellable_cancel (job->cancellable);
 225         g_signal_emit (job, job_signals[CANCELLED], 0);
 226 }
 227
 228 void
 229 ev_job_failed (EvJob       *job,
 230                GQuark       domain,
 231                gint         code,
 232                const gchar *format,
 233                ...)
 234 {
 235         va_list args;
 236         gchar  *message;
 237
 238         if (job->failed || job->finished)
 239                 return;
 240
 241         ev_debug_message (DEBUG_JOBS, "job %s (%p) failed", EV_GET_TYPE_NAME (job), job);
 242
 243         job->failed = TRUE;
 244
 245         va_start (args, format);
 246         message = g_strdup_vprintf (format, args);
 247         va_end (args);
 248
 249         job->error = g_error_new_literal (domain, code, message);
 250         g_free (message);
 251
 252         ev_job_emit_finished (job);
 253 }
 254
 255 void
 256 ev_job_failed_from_error (EvJob  *job,
 257                           GError *error)
 258 {
 259         if (job->failed || job->finished)
 260                 return;
 261
 262         ev_debug_message (DEBUG_JOBS, "job %s (%p) failed", EV_GET_TYPE_NAME (job), job);
 263
 264         job->failed = TRUE;
 265         job->error = g_error_copy (error);
 266
 267         ev_job_emit_finished (job);
 268 }
 269
 270 void
 271 ev_job_succeeded (EvJob *job)
 272 {
 273         if (job->finished)
 274                 return;
 275
 276         ev_debug_message (DEBUG_JOBS, "job %s (%p) succeeded", EV_GET_TYPE_NAME (job), job);
 277
 278         job->failed = FALSE;
 279         ev_job_emit_finished (job);
 280 }
 281
 282 gboolean
 283 ev_job_is_finished (EvJob *job)
 284 {
 285         return job->finished;
 286 }
 287
 288 gboolean
 289 ev_job_is_failed (EvJob *job)
 290 {
 291         return job->failed;
 292 }
 293
 294 EvJobRunMode
 295 ev_job_get_run_mode (EvJob *job)
 296 {
 297         return job->run_mode;
 298 }
 299
 300 void
 301 ev_job_set_run_mode (EvJob       *job,
 302                      EvJobRunMode run_mode)
 303 {
 304         job->run_mode = run_mode;
 305 }
 306
 307 /* EvJobLinks */
 308 static void
 309 ev_job_links_init (EvJobLinks *job)
 310 {
 311         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 312 }
 313
 314 static void
 315 ev_job_links_dispose (GObject *object)
 316 {
 317         EvJobLinks *job;
 318
 319         ev_debug_message (DEBUG_JOBS, NULL);
 320
 321         job = EV_JOB_LINKS (object);
 322
 323         if (job->model) {
 324                 g_object_unref (job->model);
 325                 job->model = NULL;
 326         }
 327
 328         (* G_OBJECT_CLASS (ev_job_links_parent_class)->dispose) (object);
 329 }
 330
 331 static gboolean
 332 ev_job_links_run (EvJob *job)
 333 {
 334         EvJobLinks *job_links = EV_JOB_LINKS (job);
 335
 336         ev_debug_message (DEBUG_JOBS, NULL);
 337         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 338
 339         ev_document_doc_mutex_lock ();
 340         job_links->model = ev_document_links_get_links_model (EV_DOCUMENT_LINKS (job->document));
 341         ev_document_doc_mutex_unlock ();
 342
 343         ev_job_succeeded (job);
 344
 345         return FALSE;
 346 }
 347
 348 static void
 349 ev_job_links_class_init (EvJobLinksClass *class)
 350 {
 351         GObjectClass *oclass = G_OBJECT_CLASS (class);
 352         EvJobClass   *job_class = EV_JOB_CLASS (class);
 353
 354         oclass->dispose = ev_job_links_dispose;
 355         job_class->run = ev_job_links_run;
 356 }
 357
 358 EvJob *
 359 ev_job_links_new (EvDocument *document)
 360 {
 361         EvJob *job;
 362
 363         ev_debug_message (DEBUG_JOBS, NULL);
 364
 365         job = g_object_new (EV_TYPE_JOB_LINKS, NULL);
 366         job->document = g_object_ref (document);
 367
 368         return job;
 369 }
 370
 371 /* EvJobAttachments */
 372 static void
 373 ev_job_attachments_init (EvJobAttachments *job)
 374 {
 375         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 376 }
 377
 378 static void
 379 ev_job_attachments_dispose (GObject *object)
 380 {
 381         EvJobAttachments *job;
 382
 383         ev_debug_message (DEBUG_JOBS, NULL);
 384
 385         job = EV_JOB_ATTACHMENTS (object);
 386
 387         if (job->attachments) {
 388                 g_list_foreach (job->attachments, (GFunc)g_object_unref, NULL);
 389                 g_list_free (job->attachments);
 390                 job->attachments = NULL;
 391         }
 392
 393         (* G_OBJECT_CLASS (ev_job_attachments_parent_class)->dispose) (object);
 394 }
 395
 396 static gboolean
 397 ev_job_attachments_run (EvJob *job)
 398 {
 399         EvJobAttachments *job_attachments = EV_JOB_ATTACHMENTS (job);
 400
 401         ev_debug_message (DEBUG_JOBS, NULL);
 402         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 403
 404         ev_document_doc_mutex_lock ();
 405         job_attachments->attachments =
 406                 ev_document_attachments_get_attachments (EV_DOCUMENT_ATTACHMENTS (job->document));
 407         ev_document_doc_mutex_unlock ();
 408
 409         ev_job_succeeded (job);
 410
 411         return FALSE;
 412 }
 413
 414 static void
 415 ev_job_attachments_class_init (EvJobAttachmentsClass *class)
 416 {
 417         GObjectClass *oclass = G_OBJECT_CLASS (class);
 418         EvJobClass   *job_class = EV_JOB_CLASS (class);
 419
 420         oclass->dispose = ev_job_attachments_dispose;
 421         job_class->run = ev_job_attachments_run;
 422 }
 423
 424 EvJob *
 425 ev_job_attachments_new (EvDocument *document)
 426 {
 427         EvJob *job;
 428
 429         ev_debug_message (DEBUG_JOBS, NULL);
 430
 431         job = g_object_new (EV_TYPE_JOB_ATTACHMENTS, NULL);
 432         job->document = g_object_ref (document);
 433
 434         return job;
 435 }
 436
 437 /* EvJobRender */
 438 static void
 439 ev_job_render_init (EvJobRender *job)
 440 {
 441         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 442 }
 443
 444 static void
 445 ev_job_render_dispose (GObject *object)
 446 {
 447         EvJobRender *job;
 448
 449         job = EV_JOB_RENDER (object);
 450
 451         if (job->ev_page) {
 452                 ev_debug_message (DEBUG_JOBS, "page: %d (%p)", job->ev_page->index, job);
 453                 g_object_unref (job->ev_page);
 454                 job->ev_page = NULL;
 455         }
 456
 457         if (job->surface) {
 458                 cairo_surface_destroy (job->surface);
 459                 job->surface = NULL;
 460         }
 461
 462         if (job->selection) {
 463                 cairo_surface_destroy (job->selection);
 464                 job->selection = NULL;
 465         }
 466
 467         if (job->selection_region) {
 468                 gdk_region_destroy (job->selection_region);
 469                 job->selection_region = NULL;
 470         }
 471
 472         (* G_OBJECT_CLASS (ev_job_render_parent_class)->dispose) (object);
 473 }
 474
 475 static gboolean
 476 ev_job_render_run (EvJob *job)
 477 {
 478         EvJobRender     *job_render = EV_JOB_RENDER (job);
 479         EvRenderContext *rc;
 480
 481         ev_debug_message (DEBUG_JOBS, "page: %d (%p)", job_render->page, job);
 482         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 483
 484         ev_document_doc_mutex_lock ();
 485
 486         ev_profiler_start (EV_PROFILE_JOBS, "Rendering page %d", job_render->page);
 487
 488         ev_document_fc_mutex_lock ();
 489
 490         job_render->ev_page = ev_document_get_page (job->document, job_render->page);
 491         rc = ev_render_context_new (job_render->ev_page, job_render->rotation, job_render->scale);
 492
 493         job_render->surface = ev_document_render (job->document, rc);
 494         /* If job was cancelled during the page rendering,
 495          * we return now, so that the thread is finished ASAP
 496          */
 497         if (g_cancellable_is_cancelled (job->cancellable)) {
 498                 ev_document_fc_mutex_unlock ();
 499                 ev_document_doc_mutex_unlock ();
 500                 g_object_unref (rc);
 501
 502                 return FALSE;
 503         }
 504
 505         if (job_render->include_selection && EV_IS_SELECTION (job->document)) {
 506                 ev_selection_render_selection (EV_SELECTION (job->document),
 507                                                rc,
 508                                                &(job_render->selection),
 509                                                &(job_render->selection_points),
 510                                                NULL,
 511                                                job_render->selection_style,
 512                                                &(job_render->text), &(job_render->base));
 513                 job_render->selection_region =
 514                         ev_selection_get_selection_region (EV_SELECTION (job->document),
 515                                                            rc,
 516                                                            job_render->selection_style,
 517                                                            &(job_render->selection_points));
 518         }
 519
 520         g_object_unref (rc);
 521
 522         ev_document_fc_mutex_unlock ();
 523         ev_document_doc_mutex_unlock ();
 524
 525         ev_job_succeeded (job);
 526
 527         return FALSE;
 528 }
 529
 530 static void
 531 ev_job_render_class_init (EvJobRenderClass *class)
 532 {
 533         GObjectClass *oclass = G_OBJECT_CLASS (class);
 534         EvJobClass   *job_class = EV_JOB_CLASS (class);
 535
 536         oclass->dispose = ev_job_render_dispose;
 537         job_class->run = ev_job_render_run;
 538 }
 539
 540 EvJob *
 541 ev_job_render_new (EvDocument   *document,
 542                    gint          page,
 543                    gint          rotation,
 544                    gdouble       scale,
 545                    gint          width,
 546                    gint          height)
 547 {
 548         EvJobRender *job;
 549
 550         ev_debug_message (DEBUG_JOBS, "page: %d", page);
 551
 552         job = g_object_new (EV_TYPE_JOB_RENDER, NULL);
 553
 554         EV_JOB (job)->document = g_object_ref (document);
 555         job->page = page;
 556         job->rotation = rotation;
 557         job->scale = scale;
 558         job->target_width = width;
 559         job->target_height = height;
 560
 561         return EV_JOB (job);
 562 }
 563
 564 void
 565 ev_job_render_set_selection_info (EvJobRender     *job,
 566                                   EvRectangle     *selection_points,
 567                                   EvSelectionStyle selection_style,
 568                                   GdkColor        *text,
 569                                   GdkColor        *base)
 570 {
 571         job->include_selection = TRUE;
 572
 573         job->selection_points = *selection_points;
 574         job->selection_style = selection_style;
 575         job->text = *text;
 576         job->base = *base;
 577 }
 578
 579 /* EvJobPageData */
 580 static void
 581 ev_job_page_data_init (EvJobPageData *job)
 582 {
 583         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 584 }
 585
 586 static gboolean
 587 ev_job_page_data_run (EvJob *job)
 588 {
 589         EvJobPageData *job_pd = EV_JOB_PAGE_DATA (job);
 590         EvPage        *ev_page;
 591
 592         ev_debug_message (DEBUG_JOBS, "page: %d (%p)", job_pd->page, job);
 593         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 594
 595         ev_document_doc_mutex_lock ();
 596         ev_page = ev_document_get_page (job->document, job_pd->page);
 597
 598         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_TEXT) && EV_IS_SELECTION (job->document))
 599                 job_pd->text_mapping =
 600                         ev_selection_get_selection_map (EV_SELECTION (job->document), ev_page);
 601         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_LINKS) && EV_IS_DOCUMENT_LINKS (job->document))
 602                 job_pd->link_mapping =
 603                         ev_document_links_get_links (EV_DOCUMENT_LINKS (job->document), job_pd->page);
 604         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_FORMS) && EV_IS_DOCUMENT_FORMS (job->document))
 605                 job_pd->form_field_mapping =
 606                         ev_document_forms_get_form_fields (EV_DOCUMENT_FORMS (job->document),
 607                                                            ev_page);
 608         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_IMAGES) && EV_IS_DOCUMENT_IMAGES (job->document))
 609                 job_pd->image_mapping =
 610                         ev_document_images_get_image_mapping (EV_DOCUMENT_IMAGES (job->document),
 611                                                               job_pd->page);
 612         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_ANNOTS) && EV_IS_DOCUMENT_ANNOTATIONS (job->document))
 613                 job_pd->annot_mapping =
 614                         ev_document_annotations_get_annotations (EV_DOCUMENT_ANNOTATIONS (job->document),
 615                                                                  ev_page);
 616         g_object_unref (ev_page);
 617         ev_document_doc_mutex_unlock ();
 618
 619         ev_job_succeeded (job);
 620
 621         return FALSE;
 622 }
 623
 624 static void
 625 ev_job_page_data_class_init (EvJobPageDataClass *class)
 626 {
 627         EvJobClass *job_class = EV_JOB_CLASS (class);
 628
 629         job_class->run = ev_job_page_data_run;
 630 }
 631
 632 EvJob *
 633 ev_job_page_data_new (EvDocument        *document,
 634                       gint               page,
 635                       EvJobPageDataFlags flags)
 636 {
 637         EvJobPageData *job;
 638
 639         ev_debug_message (DEBUG_JOBS, "%d", page);
 640
 641         job = g_object_new (EV_TYPE_JOB_PAGE_DATA, NULL);
 642
 643         EV_JOB (job)->document = g_object_ref (document);
 644         job->page = page;
 645         job->flags = flags;
 646
 647         return EV_JOB (job);
 648 }
 649
 650 /* EvJobThumbnail */
 651 static void
 652 ev_job_thumbnail_init (EvJobThumbnail *job)
 653 {
 654         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 655 }
 656
 657 static void
 658 ev_job_thumbnail_dispose (GObject *object)
 659 {
 660         EvJobThumbnail *job;
 661
 662         job = EV_JOB_THUMBNAIL (object);
 663
 664         ev_debug_message (DEBUG_JOBS, "%d (%p)", job->page, job);
 665
 666         if (job->thumbnail) {
 667                 g_object_unref (job->thumbnail);
 668                 job->thumbnail = NULL;
 669         }
 670
 671         (* G_OBJECT_CLASS (ev_job_thumbnail_parent_class)->dispose) (object);
 672 }
 673
 674 static gboolean
 675 ev_job_thumbnail_run (EvJob *job)
 676 {
 677         EvJobThumbnail  *job_thumb = EV_JOB_THUMBNAIL (job);
 678         EvRenderContext *rc;
 679         EvPage          *page;
 680
 681         ev_debug_message (DEBUG_JOBS, "%d (%p)", job_thumb->page, job);
 682         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 683
 684         ev_document_doc_mutex_lock ();
 685
 686         page = ev_document_get_page (job->document, job_thumb->page);
 687         rc = ev_render_context_new (page, job_thumb->rotation, job_thumb->scale);
 688         g_object_unref (page);
 689
 690         job_thumb->thumbnail = ev_document_thumbnails_get_thumbnail (EV_DOCUMENT_THUMBNAILS (job->document),
 691                                                                      rc, TRUE);
 692         g_object_unref (rc);
 693         ev_document_doc_mutex_unlock ();
 694
 695         ev_job_succeeded (job);
 696
 697         return FALSE;
 698 }
 699
 700 static void
 701 ev_job_thumbnail_class_init (EvJobThumbnailClass *class)
 702 {
 703         GObjectClass *oclass = G_OBJECT_CLASS (class);
 704         EvJobClass   *job_class = EV_JOB_CLASS (class);
 705
 706         oclass->dispose = ev_job_thumbnail_dispose;
 707         job_class->run = ev_job_thumbnail_run;
 708 }
 709
 710 EvJob *
 711 ev_job_thumbnail_new (EvDocument *document,
 712                       gint        page,
 713                       gint        rotation,
 714                       gdouble     scale)
 715 {
 716         EvJobThumbnail *job;
 717
 718         ev_debug_message (DEBUG_JOBS, "%d", page);
 719
 720         job = g_object_new (EV_TYPE_JOB_THUMBNAIL, NULL);
 721
 722         EV_JOB (job)->document = g_object_ref (document);
 723         job->page = page;
 724         job->rotation = rotation;
 725         job->scale = scale;
 726
 727         return EV_JOB (job);
 728 }
 729
 730 /* EvJobFonts */
 731 static void
 732 ev_job_fonts_init (EvJobFonts *job)
 733 {
 734         EV_JOB (job)->run_mode = EV_JOB_RUN_MAIN_LOOP;
 735 }
 736
 737 static gboolean
 738 ev_job_fonts_run (EvJob *job)
 739 {
 740         EvJobFonts      *job_fonts = EV_JOB_FONTS (job);
 741         EvDocumentFonts *fonts = EV_DOCUMENT_FONTS (job->document);
 742
 743         ev_debug_message (DEBUG_JOBS, NULL);
 744
 745         /* Do not block the main loop */
 746         if (!ev_document_doc_mutex_trylock ())
 747                 return TRUE;
 748
 749         if (!ev_document_fc_mutex_trylock ())
 750                 return TRUE;
 751
 752 #ifdef EV_ENABLE_DEBUG
 753         /* We use the #ifdef in this case because of the if */
 754         if (ev_document_fonts_get_progress (fonts) == 0)
 755                 ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 756 #endif
 757
 758         job_fonts->scan_completed = !ev_document_fonts_scan (fonts, 20);
 759         g_signal_emit (job_fonts, job_fonts_signals[FONTS_UPDATED], 0,
 760                        ev_document_fonts_get_progress (fonts));
 761
 762         ev_document_fc_mutex_unlock ();
 763         ev_document_doc_mutex_unlock ();
 764
 765         if (job_fonts->scan_completed)
 766                 ev_job_succeeded (job);
 767
 768         return !job_fonts->scan_completed;
 769 }
 770
 771 static void
 772 ev_job_fonts_class_init (EvJobFontsClass *class)
 773 {
 774         EvJobClass *job_class = EV_JOB_CLASS (class);
 775
 776         job_class->run = ev_job_fonts_run;
 777
 778         job_fonts_signals[FONTS_UPDATED] =
 779                 g_signal_new ("updated",
 780                               EV_TYPE_JOB_FONTS,
 781                               G_SIGNAL_RUN_LAST,
 782                               G_STRUCT_OFFSET (EvJobFontsClass, updated),
 783                               NULL, NULL,
 784                               g_cclosure_marshal_VOID__DOUBLE,
 785                               G_TYPE_NONE,
 786                               1, G_TYPE_DOUBLE);
 787 }
 788
 789 EvJob *
 790 ev_job_fonts_new (EvDocument *document)
 791 {
 792         EvJobFonts *job;
 793
 794         ev_debug_message (DEBUG_JOBS, NULL);
 795
 796         job = g_object_new (EV_TYPE_JOB_FONTS, NULL);
 797
 798         EV_JOB (job)->document = g_object_ref (document);
 799
 800         return EV_JOB (job);
 801 }
 802
 803 /* EvJobLoad */
 804 static void
 805 ev_job_load_init (EvJobLoad *job)
 806 {
 807         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 808 }
 809
 810 static void
 811 ev_job_load_dispose (GObject *object)
 812 {
 813         EvJobLoad *job = EV_JOB_LOAD (object);
 814
 815         ev_debug_message (DEBUG_JOBS, "%s", job->uri);
 816
 817         if (job->uri) {
 818                 g_free (job->uri);
 819                 job->uri = NULL;
 820         }
 821
 822         if (job->password) {
 823                 g_free (job->password);
 824                 job->password = NULL;
 825         }
 826
 827         (* G_OBJECT_CLASS (ev_job_load_parent_class)->dispose) (object);
 828 }
 829
 830 static gboolean
 831 ev_job_load_run (EvJob *job)
 832 {
 833         EvJobLoad *job_load = EV_JOB_LOAD (job);
 834         GError    *error = NULL;
 835
 836         ev_debug_message (DEBUG_JOBS, "%s", job_load->uri);
 837         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 838
 839         ev_document_fc_mutex_lock ();
 840
 841         /* This job may already have a document even if the job didn't complete
 842            because, e.g., a password is required - if so, just reload rather than
 843            creating a new instance */
 844         if (job->document) {
 845                 if (job_load->password) {
 846                         ev_document_security_set_password (EV_DOCUMENT_SECURITY (job->document),
 847                                                            job_load->password);
 848                 }
 849
 850                 job->failed = FALSE;
 851                 job->finished = FALSE;
 852                 g_clear_error (&job->error);
 853
 854                 ev_document_load (job->document,
 855                                   job_load->uri,
 856                                   &error);
 857         } else {
 858                 job->document = ev_document_factory_get_document (job_load->uri,
 859                                                                   &error);
 860         }
 861
 862         ev_document_fc_mutex_unlock ();
 863
 864         if (error) {
 865                 ev_job_failed_from_error (job, error);
 866                 g_error_free (error);
 867         } else {
 868                 ev_job_succeeded (job);
 869         }
 870
 871         return FALSE;
 872 }
 873
 874 static void
 875 ev_job_load_class_init (EvJobLoadClass *class)
 876 {
 877         GObjectClass *oclass = G_OBJECT_CLASS (class);
 878         EvJobClass   *job_class = EV_JOB_CLASS (class);
 879
 880         oclass->dispose = ev_job_load_dispose;
 881         job_class->run = ev_job_load_run;
 882 }
 883
 884 EvJob *
 885 ev_job_load_new (const gchar *uri)
 886 {
 887         EvJobLoad *job;
 888
 889         ev_debug_message (DEBUG_JOBS, "%s", uri);
 890
 891         job = g_object_new (EV_TYPE_JOB_LOAD, NULL);
 892         job->uri = g_strdup (uri);
 893
 894         return EV_JOB (job);
 895 }
 896
 897 void
 898 ev_job_load_set_uri (EvJobLoad *job, const gchar *uri)
 899 {
 900         ev_debug_message (DEBUG_JOBS, "%s", uri);
 901
 902         if (job->uri)
 903                 g_free (job->uri);
 904         job->uri = g_strdup (uri);
 905 }
 906
 907 void
 908 ev_job_load_set_password (EvJobLoad *job, const gchar *password)
 909 {
 910         ev_debug_message (DEBUG_JOBS, NULL);
 911
 912         if (job->password)
 913                 g_free (job->password);
 914         job->password = password ? g_strdup (password) : NULL;
 915 }
 916
 917 /* EvJobSave */
 918 static void
 919 ev_job_save_init (EvJobSave *job)
 920 {
 921         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 922 }
 923
 924 static void
 925 ev_job_save_dispose (GObject *object)
 926 {
 927         EvJobSave *job = EV_JOB_SAVE (object);
 928
 929         ev_debug_message (DEBUG_JOBS, "%s", job->uri);
 930
 931         if (job->uri) {
 932                 g_free (job->uri);
 933                 job->uri = NULL;
 934         }
 935
 936         if (job->document_uri) {
 937                 g_free (job->document_uri);
 938                 job->document_uri = NULL;
 939         }
 940
 941         (* G_OBJECT_CLASS (ev_job_save_parent_class)->dispose) (object);
 942 }
 943
 944 static gboolean
 945 ev_job_save_run (EvJob *job)
 946 {
 947         EvJobSave *job_save = EV_JOB_SAVE (job);
 948         gint       fd;
 949         gchar     *tmp_filename = NULL;
 950         gchar     *local_uri;
 951         GError    *error = NULL;
 952
 953         ev_debug_message (DEBUG_JOBS, "uri: %s, document_uri: %s", job_save->uri, job_save->document_uri);
 954         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 955
 956         fd = ev_mkstemp ("saveacopy.XXXXXX", &tmp_filename, &error);
 957         if (fd == -1) {
 958                 ev_job_failed_from_error (job, error);
 959                 g_error_free (error);
 960
 961                 return FALSE;
 962         }
 963
 964         ev_document_doc_mutex_lock ();
 965
 966         /* Save document to temp filename */
 967         local_uri = g_filename_to_uri (tmp_filename, NULL, &error);
 968         if (local_uri != NULL) {
 969                 ev_document_save (job->document, local_uri, &error);
 970         }
 971
 972         close (fd);
 973
 974         ev_document_doc_mutex_unlock ();
 975
 976         if (error) {
 977                 g_free (local_uri);
 978                 ev_job_failed_from_error (job, error);
 979                 g_error_free (error);
 980
 981                 return FALSE;
 982         }
 983
 984         /* If original document was compressed,
 985          * compress it again before saving
 986          */
 987         if (g_object_get_data (G_OBJECT (job->document), "uri-uncompressed")) {
 988                 EvCompressionType ctype = EV_COMPRESSION_NONE;
 989                 const gchar      *ext;
 990                 gchar            *uri_comp;
 991
 992                 ext = g_strrstr (job_save->document_uri, ".gz");
 993                 if (ext && g_ascii_strcasecmp (ext, ".gz") == 0)
 994                         ctype = EV_COMPRESSION_GZIP;
 995
 996                 ext = g_strrstr (job_save->document_uri, ".bz2");
 997                 if (ext && g_ascii_strcasecmp (ext, ".bz2") == 0)
 998                         ctype = EV_COMPRESSION_BZIP2;
 999
1000                 uri_comp = ev_file_compress (local_uri, ctype, &error);
1001                 g_free (local_uri);
1002                 g_unlink (tmp_filename);
1003
1004                 if (!uri_comp || error) {
1005                         local_uri = NULL;
1006                 } else {
1007                         local_uri = uri_comp;
1008                 }
1009         }
1010
1011         g_free (tmp_filename);
1012
1013         if (error) {
1014                 g_free (local_uri);
1015                 ev_job_failed_from_error (job, error);
1016                 g_error_free (error);
1017
1018                 return FALSE;
1019         }
1020
1021         if (!local_uri)
1022                 return FALSE;
1023
1024         ev_xfer_uri_simple (local_uri, job_save->uri, &error);
1025         ev_tmp_uri_unlink (local_uri);
1026
1027         if (error) {
1028                 ev_job_failed_from_error (job, error);
1029                 g_error_free (error);
1030         } else {
1031                 ev_job_succeeded (job);
1032         }
1033
1034         return FALSE;
1035 }
1036
1037 static void
1038 ev_job_save_class_init (EvJobSaveClass *class)
1039 {
1040         GObjectClass *oclass = G_OBJECT_CLASS (class);
1041         EvJobClass   *job_class = EV_JOB_CLASS (class);
1042
1043         oclass->dispose = ev_job_save_dispose;
1044         job_class->run = ev_job_save_run;
1045 }
1046
1047 EvJob *
1048 ev_job_save_new (EvDocument  *document,
1049                  const gchar *uri,
1050                  const gchar *document_uri)
1051 {
1052         EvJobSave *job;
1053
1054         ev_debug_message (DEBUG_JOBS, "uri: %s, document_uri: %s", uri, document_uri);
1055
1056         job = g_object_new (EV_TYPE_JOB_SAVE, NULL);
1057
1058         EV_JOB (job)->document = g_object_ref (document);
1059         job->uri = g_strdup (uri);
1060         job->document_uri = g_strdup (document_uri);
1061
1062         return EV_JOB (job);
1063 }
1064
1065 /* EvJobFind */
1066 static void
1067 ev_job_find_init (EvJobFind *job)
1068 {
1069         EV_JOB (job)->run_mode = EV_JOB_RUN_MAIN_LOOP;
1070 }
1071
1072 static void
1073 ev_job_find_dispose (GObject *object)
1074 {
1075         EvJobFind *job = EV_JOB_FIND (object);
1076
1077         ev_debug_message (DEBUG_JOBS, NULL);
1078
1079         if (job->text) {
1080                 g_free (job->text);
1081                 job->text = NULL;
1082         }
1083
1084         if (job->pages) {
1085                 gint i;
1086
1087                 for (i = 0; i < job->n_pages; i++) {
1088                         g_list_foreach (job->pages[i], (GFunc)g_free, NULL);
1089                         g_list_free (job->pages[i]);
1090                 }
1091
1092                 g_free (job->pages);
1093                 job->pages = NULL;
1094         }
1095
1096         (* G_OBJECT_CLASS (ev_job_find_parent_class)->dispose) (object);
1097 }
1098
1099 static gboolean
1100 ev_job_find_run (EvJob *job)
1101 {
1102         EvJobFind      *job_find = EV_JOB_FIND (job);
1103         EvDocumentFind *find = EV_DOCUMENT_FIND (job->document);
1104         EvPage         *ev_page;
1105         GList          *matches;
1106
1107         ev_debug_message (DEBUG_JOBS, NULL);
1108
1109         /* Do not block the main loop */
1110         if (!ev_document_doc_mutex_trylock ())
1111                 return TRUE;
1112
1113 #ifdef EV_ENABLE_DEBUG
1114         /* We use the #ifdef in this case because of the if */
1115         if (job_find->current_page == job_find->start_page)
1116                 ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
1117 #endif
1118
1119         ev_page = ev_document_get_page (job->document, job_find->current_page);
1120         matches = ev_document_find_find_text (find, ev_page, job_find->text,
1121                                               job_find->case_sensitive);
1122         g_object_unref (ev_page);
1123
1124         ev_document_doc_mutex_unlock ();
1125
1126         if (!job_find->has_results)
1127                 job_find->has_results = (matches != NULL);
1128
1129         job_find->pages[job_find->current_page] = matches;
1130         g_signal_emit (job_find, job_find_signals[FIND_UPDATED], 0, job_find->current_page);
1131
1132         job_find->current_page = (job_find->current_page + 1) % job_find->n_pages;
1133         if (job_find->current_page == job_find->start_page) {
1134                 ev_job_succeeded (job);
1135
1136                 return FALSE;
1137         }
1138
1139         return TRUE;
1140 }
1141
1142 static void
1143 ev_job_find_class_init (EvJobFindClass *class)
1144 {
1145         EvJobClass   *job_class = EV_JOB_CLASS (class);
1146         GObjectClass *gobject_class = G_OBJECT_CLASS (class);
1147
1148         job_class->run = ev_job_find_run;
1149         gobject_class->dispose = ev_job_find_dispose;
1150
1151         job_find_signals[FIND_UPDATED] =
1152                 g_signal_new ("updated",
1153                               EV_TYPE_JOB_FIND,
1154                               G_SIGNAL_RUN_LAST,
1155                               G_STRUCT_OFFSET (EvJobFindClass, updated),
1156                               NULL, NULL,
1157                               g_cclosure_marshal_VOID__INT,
1158                               G_TYPE_NONE,
1159                               1, G_TYPE_INT);
1160 }
1161
1162 EvJob *
1163 ev_job_find_new (EvDocument  *document,
1164                  gint         start_page,
1165                  gint         n_pages,
1166                  const gchar *text,
1167                  gboolean     case_sensitive)
1168 {
1169         EvJobFind *job;
1170
1171         ev_debug_message (DEBUG_JOBS, NULL);
1172
1173         job = g_object_new (EV_TYPE_JOB_FIND, NULL);
1174
1175         EV_JOB (job)->document = g_object_ref (document);
1176         job->start_page = start_page;
1177         job->current_page = start_page;
1178         job->n_pages = n_pages;
1179         job->pages = g_new0 (GList *, n_pages);
1180         job->text = g_strdup (text);
1181         job->case_sensitive = case_sensitive;
1182         job->has_results = FALSE;
1183
1184         return EV_JOB (job);
1185 }
1186
1187 gint
1188 ev_job_find_get_n_results (EvJobFind *job,
1189                            gint       page)
1190 {
1191         return g_list_length (job->pages[page]);
1192 }
1193
1194 gdouble
1195 ev_job_find_get_progress (EvJobFind *job)
1196 {
1197         gint pages_done;
1198
1199         if (ev_job_is_finished (EV_JOB (job)))
1200                 return 1.0;
1201
1202         if (job->current_page > job->start_page) {
1203                 pages_done = job->current_page - job->start_page + 1;
1204         } else if (job->current_page == job->start_page) {
1205                 pages_done = job->n_pages;
1206         } else {
1207                 pages_done = job->n_pages - job->start_page + job->current_page;
1208         }
1209
1210         return pages_done / (gdouble) job->n_pages;
1211 }
1212
1213 gboolean
1214 ev_job_find_has_results (EvJobFind *job)
1215 {
1216         return job->has_results;
1217 }
1218
1219 GList **
1220 ev_job_find_get_results (EvJobFind *job)
1221 {
1222         return job->pages;
1223 }
1224
1225 /* EvJobLayers */
1226 static void
1227 ev_job_layers_init (EvJobLayers *job)
1228 {
1229         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
1230 }
1231
1232 static void
1233 ev_job_layers_dispose (GObject *object)
1234 {
1235         EvJobLayers *job;
1236
1237         ev_debug_message (DEBUG_JOBS, NULL);
1238
1239         job = EV_JOB_LAYERS (object);
1240
1241         if (job->model) {
1242                 g_object_unref (job->model);
1243                 job->model = NULL;
1244         }
1245
1246         (* G_OBJECT_CLASS (ev_job_layers_parent_class)->dispose) (object);
1247 }
1248
1249 static gboolean
1250 ev_job_layers_run (EvJob *job)
1251 {
1252         EvJobLayers *job_layers = EV_JOB_LAYERS (job);
1253
1254         ev_debug_message (DEBUG_JOBS, NULL);
1255         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
1256
1257         ev_document_doc_mutex_lock ();
1258         job_layers->model = ev_document_layers_get_layers (EV_DOCUMENT_LAYERS (job->document));
1259         ev_document_doc_mutex_unlock ();
1260
1261         ev_job_succeeded (job);
1262
1263         return FALSE;
1264 }
1265
1266 static void
1267 ev_job_layers_class_init (EvJobLayersClass *class)
1268 {
1269         GObjectClass *oclass = G_OBJECT_CLASS (class);
1270         EvJobClass   *job_class = EV_JOB_CLASS (class);
1271
1272         oclass->dispose = ev_job_layers_dispose;
1273         job_class->run = ev_job_layers_run;
1274 }
1275
1276 EvJob *
1277 ev_job_layers_new (EvDocument *document)
1278 {
1279         EvJob *job;
1280
1281         ev_debug_message (DEBUG_JOBS, NULL);
1282
1283         job = g_object_new (EV_TYPE_JOB_LAYERS, NULL);
1284         job->document = g_object_ref (document);
1285
1286         return job;
1287 }
1288
1289 /* EvJobExport */
1290 static void
1291 ev_job_export_init (EvJobExport *job)
1292 {
1293         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
1294         job->page = -1;
1295 }
1296
1297 static void
1298 ev_job_export_dispose (GObject *object)
1299 {
1300         EvJobExport *job;
1301
1302         ev_debug_message (DEBUG_JOBS, NULL);
1303
1304         job = EV_JOB_EXPORT (object);
1305
1306         if (job->rc) {
1307                 g_object_unref (job->rc);
1308                 job->rc = NULL;
1309         }
1310
1311         (* G_OBJECT_CLASS (ev_job_export_parent_class)->dispose) (object);
1312 }
1313
1314 static gboolean
1315 ev_job_export_run (EvJob *job)
1316 {
1317         EvJobExport *job_export = EV_JOB_EXPORT (job);
1318         EvPage      *ev_page;
1319
1320         g_assert (job_export->page != -1);
1321
1322         ev_debug_message (DEBUG_JOBS, NULL);
1323         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
1324
1325         ev_document_doc_mutex_lock ();
1326
1327         ev_page = ev_document_get_page (job->document, job_export->page);
1328         if (job_export->rc) {
1329                 job->failed = FALSE;
1330                 job->finished = FALSE;
1331                 g_clear_error (&job->error);
1332
1333                 ev_render_context_set_page (job_export->rc, ev_page);
1334         } else {
1335                 job_export->rc = ev_render_context_new (ev_page, 0, 1.0);
1336         }
1337         g_object_unref (ev_page);
1338
1339         ev_file_exporter_do_page (EV_FILE_EXPORTER (job->document), job_export->rc);
1340
1341         ev_document_doc_mutex_unlock ();
1342
1343         ev_job_succeeded (job);
1344
1345         return FALSE;
1346 }
1347
1348 static void
1349 ev_job_export_class_init (EvJobExportClass *class)
1350 {
1351         GObjectClass *oclass = G_OBJECT_CLASS (class);
1352         EvJobClass   *job_class = EV_JOB_CLASS (class);
1353
1354         oclass->dispose = ev_job_export_dispose;
1355         job_class->run = ev_job_export_run;
1356 }
1357
1358 EvJob *
1359 ev_job_export_new (EvDocument *document)
1360 {
1361         EvJob *job;
1362
1363         ev_debug_message (DEBUG_JOBS, NULL);
1364
1365         job = g_object_new (EV_TYPE_JOB_EXPORT, NULL);
1366         job->document = g_object_ref (document);
1367
1368         return job;
1369 }
1370
1371 void
1372 ev_job_export_set_page (EvJobExport *job,
1373                         gint         page)
1374 {
1375         job->page = page;
1376 }
1377
1378 /* EvJobPrint */
1379 static void
1380 ev_job_print_init (EvJobPrint *job)
1381 {
1382         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
1383         job->page = -1;
1384 }
1385
1386 static void
1387 ev_job_print_dispose (GObject *object)
1388 {
1389         EvJobPrint *job;
1390
1391         ev_debug_message (DEBUG_JOBS, NULL);
1392
1393         job = EV_JOB_PRINT (object);
1394
1395         if (job->cr) {
1396                 cairo_destroy (job->cr);
1397                 job->cr = NULL;
1398         }
1399
1400         (* G_OBJECT_CLASS (ev_job_print_parent_class)->dispose) (object);
1401 }
1402
1403 static gboolean
1404 ev_job_print_run (EvJob *job)
1405 {
1406         EvJobPrint     *job_print = EV_JOB_PRINT (job);
1407         EvPage         *ev_page;
1408         cairo_status_t  cr_status;
1409
1410         g_assert (job_print->page != -1);
1411         g_assert (job_print->cr != NULL);
1412
1413         ev_debug_message (DEBUG_JOBS, NULL);
1414         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
1415
1416         job->failed = FALSE;
1417         job->finished = FALSE;
1418         g_clear_error (&job->error);
1419
1420         ev_document_doc_mutex_lock ();
1421
1422         ev_page = ev_document_get_page (job->document, job_print->page);
1423         ev_document_print_print_page (EV_DOCUMENT_PRINT (job->document),
1424                                       ev_page, job_print->cr);
1425         g_object_unref (ev_page);
1426
1427         ev_document_doc_mutex_unlock ();
1428
1429         cr_status = cairo_status (job_print->cr);
1430         if (cr_status == CAIRO_STATUS_SUCCESS) {
1431                 ev_job_succeeded (job);
1432         } else {
1433                 ev_job_failed (job,
1434                                GTK_PRINT_ERROR,
1435                                GTK_PRINT_ERROR_GENERAL,
1436                                _("Failed to print page %d: %s"),
1437                                job_print->page,
1438                                cairo_status_to_string (cr_status));
1439         }
1440
1441         return FALSE;
1442 }
1443
1444 static void
1445 ev_job_print_class_init (EvJobPrintClass *class)
1446 {
1447         GObjectClass *oclass = G_OBJECT_CLASS (class);
1448         EvJobClass   *job_class = EV_JOB_CLASS (class);
1449
1450         oclass->dispose = ev_job_print_dispose;
1451         job_class->run = ev_job_print_run;
1452 }
1453
1454 EvJob *
1455 ev_job_print_new (EvDocument *document)
1456 {
1457         EvJob *job;
1458
1459         ev_debug_message (DEBUG_JOBS, NULL);
1460
1461         job = g_object_new (EV_TYPE_JOB_PRINT, NULL);
1462         job->document = g_object_ref (document);
1463
1464         return job;
1465 }
1466
1467 void
1468 ev_job_print_set_page (EvJobPrint *job,
1469                        gint        page)
1470 {
1471         job->page = page;
1472 }
1473
1474 void
1475 ev_job_print_set_cairo (EvJobPrint *job,
1476                         cairo_t    *cr)
1477 {
1478         if (job->cr == cr)
1479                 return;
1480
1481         if (job->cr)
1482                 cairo_destroy (job->cr);
1483         job->cr = cr ? cairo_reference (cr) : NULL;
1484 }