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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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         ev_debug_message (DEBUG_JOBS, "page: %d (%p)", job->page, job);
 452
 453         if (job->surface) {
 454                 cairo_surface_destroy (job->surface);
 455                 job->surface = NULL;
 456         }
 457
 458         if (job->selection) {
 459                 cairo_surface_destroy (job->selection);
 460                 job->selection = NULL;
 461         }
 462
 463         if (job->selection_region) {
 464                 gdk_region_destroy (job->selection_region);
 465                 job->selection_region = NULL;
 466         }
 467
 468         (* G_OBJECT_CLASS (ev_job_render_parent_class)->dispose) (object);
 469 }
 470
 471 static gboolean
 472 ev_job_render_run (EvJob *job)
 473 {
 474         EvJobRender     *job_render = EV_JOB_RENDER (job);
 475         EvPage          *ev_page;
 476         EvRenderContext *rc;
 477
 478         ev_debug_message (DEBUG_JOBS, "page: %d (%p)", job_render->page, job);
 479         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 480
 481         ev_document_doc_mutex_lock ();
 482
 483         ev_profiler_start (EV_PROFILE_JOBS, "Rendering page %d", job_render->page);
 484
 485         ev_document_fc_mutex_lock ();
 486
 487         ev_page = ev_document_get_page (job->document, job_render->page);
 488         rc = ev_render_context_new (ev_page, job_render->rotation, job_render->scale);
 489         g_object_unref (ev_page);
 490
 491         job_render->surface = ev_document_render (job->document, rc);
 492         /* If job was cancelled during the page rendering,
 493          * we return now, so that the thread is finished ASAP
 494          */
 495         if (g_cancellable_is_cancelled (job->cancellable)) {
 496                 ev_document_fc_mutex_unlock ();
 497                 ev_document_doc_mutex_unlock ();
 498                 g_object_unref (rc);
 499
 500                 return FALSE;
 501         }
 502
 503         if (job_render->include_selection && EV_IS_SELECTION (job->document)) {
 504                 ev_selection_render_selection (EV_SELECTION (job->document),
 505                                                rc,
 506                                                &(job_render->selection),
 507                                                &(job_render->selection_points),
 508                                                NULL,
 509                                                job_render->selection_style,
 510                                                &(job_render->text), &(job_render->base));
 511                 job_render->selection_region =
 512                         ev_selection_get_selection_region (EV_SELECTION (job->document),
 513                                                            rc,
 514                                                            job_render->selection_style,
 515                                                            &(job_render->selection_points));
 516         }
 517
 518         g_object_unref (rc);
 519
 520         ev_document_fc_mutex_unlock ();
 521         ev_document_doc_mutex_unlock ();
 522
 523         ev_job_succeeded (job);
 524
 525         return FALSE;
 526 }
 527
 528 static void
 529 ev_job_render_class_init (EvJobRenderClass *class)
 530 {
 531         GObjectClass *oclass = G_OBJECT_CLASS (class);
 532         EvJobClass   *job_class = EV_JOB_CLASS (class);
 533
 534         oclass->dispose = ev_job_render_dispose;
 535         job_class->run = ev_job_render_run;
 536 }
 537
 538 EvJob *
 539 ev_job_render_new (EvDocument   *document,
 540                    gint          page,
 541                    gint          rotation,
 542                    gdouble       scale,
 543                    gint          width,
 544                    gint          height)
 545 {
 546         EvJobRender *job;
 547
 548         ev_debug_message (DEBUG_JOBS, "page: %d", page);
 549
 550         job = g_object_new (EV_TYPE_JOB_RENDER, NULL);
 551
 552         EV_JOB (job)->document = g_object_ref (document);
 553         job->page = page;
 554         job->rotation = rotation;
 555         job->scale = scale;
 556         job->target_width = width;
 557         job->target_height = height;
 558
 559         return EV_JOB (job);
 560 }
 561
 562 void
 563 ev_job_render_set_selection_info (EvJobRender     *job,
 564                                   EvRectangle     *selection_points,
 565                                   EvSelectionStyle selection_style,
 566                                   GdkColor        *text,
 567                                   GdkColor        *base)
 568 {
 569         job->include_selection = TRUE;
 570
 571         job->selection_points = *selection_points;
 572         job->selection_style = selection_style;
 573         job->text = *text;
 574         job->base = *base;
 575 }
 576
 577 /* EvJobPageData */
 578 static void
 579 ev_job_page_data_init (EvJobPageData *job)
 580 {
 581         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 582 }
 583
 584 static gboolean
 585 ev_job_page_data_run (EvJob *job)
 586 {
 587         EvJobPageData *job_pd = EV_JOB_PAGE_DATA (job);
 588         EvPage        *ev_page;
 589
 590         ev_debug_message (DEBUG_JOBS, "page: %d (%p)", job_pd->page, job);
 591         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 592
 593         ev_document_doc_mutex_lock ();
 594         ev_page = ev_document_get_page (job->document, job_pd->page);
 595
 596         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_TEXT) && EV_IS_SELECTION (job->document))
 597                 job_pd->text_mapping =
 598                         ev_selection_get_selection_map (EV_SELECTION (job->document), ev_page);
 599         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_LINKS) && EV_IS_DOCUMENT_LINKS (job->document))
 600                 job_pd->link_mapping =
 601                         ev_document_links_get_links (EV_DOCUMENT_LINKS (job->document), ev_page);
 602         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_FORMS) && EV_IS_DOCUMENT_FORMS (job->document))
 603                 job_pd->form_field_mapping =
 604                         ev_document_forms_get_form_fields (EV_DOCUMENT_FORMS (job->document),
 605                                                            ev_page);
 606         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_IMAGES) && EV_IS_DOCUMENT_IMAGES (job->document))
 607                 job_pd->image_mapping =
 608                         ev_document_images_get_image_mapping (EV_DOCUMENT_IMAGES (job->document),
 609                                                               ev_page);
 610         if ((job_pd->flags & EV_PAGE_DATA_INCLUDE_ANNOTS) && EV_IS_DOCUMENT_ANNOTATIONS (job->document))
 611                 job_pd->annot_mapping =
 612                         ev_document_annotations_get_annotations (EV_DOCUMENT_ANNOTATIONS (job->document),
 613                                                                  ev_page);
 614         g_object_unref (ev_page);
 615         ev_document_doc_mutex_unlock ();
 616
 617         ev_job_succeeded (job);
 618
 619         return FALSE;
 620 }
 621
 622 static void
 623 ev_job_page_data_class_init (EvJobPageDataClass *class)
 624 {
 625         EvJobClass *job_class = EV_JOB_CLASS (class);
 626
 627         job_class->run = ev_job_page_data_run;
 628 }
 629
 630 EvJob *
 631 ev_job_page_data_new (EvDocument        *document,
 632                       gint               page,
 633                       EvJobPageDataFlags flags)
 634 {
 635         EvJobPageData *job;
 636
 637         ev_debug_message (DEBUG_JOBS, "%d", page);
 638
 639         job = g_object_new (EV_TYPE_JOB_PAGE_DATA, NULL);
 640
 641         EV_JOB (job)->document = g_object_ref (document);
 642         job->page = page;
 643         job->flags = flags;
 644
 645         return EV_JOB (job);
 646 }
 647
 648 /* EvJobThumbnail */
 649 static void
 650 ev_job_thumbnail_init (EvJobThumbnail *job)
 651 {
 652         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 653 }
 654
 655 static void
 656 ev_job_thumbnail_dispose (GObject *object)
 657 {
 658         EvJobThumbnail *job;
 659
 660         job = EV_JOB_THUMBNAIL (object);
 661
 662         ev_debug_message (DEBUG_JOBS, "%d (%p)", job->page, job);
 663
 664         if (job->thumbnail) {
 665                 g_object_unref (job->thumbnail);
 666                 job->thumbnail = NULL;
 667         }
 668
 669         (* G_OBJECT_CLASS (ev_job_thumbnail_parent_class)->dispose) (object);
 670 }
 671
 672 static gboolean
 673 ev_job_thumbnail_run (EvJob *job)
 674 {
 675         EvJobThumbnail  *job_thumb = EV_JOB_THUMBNAIL (job);
 676         EvRenderContext *rc;
 677         EvPage          *page;
 678
 679         ev_debug_message (DEBUG_JOBS, "%d (%p)", job_thumb->page, job);
 680         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 681
 682         ev_document_doc_mutex_lock ();
 683
 684         page = ev_document_get_page (job->document, job_thumb->page);
 685         rc = ev_render_context_new (page, job_thumb->rotation, job_thumb->scale);
 686         g_object_unref (page);
 687
 688         job_thumb->thumbnail = ev_document_thumbnails_get_thumbnail (EV_DOCUMENT_THUMBNAILS (job->document),
 689                                                                      rc, TRUE);
 690         g_object_unref (rc);
 691         ev_document_doc_mutex_unlock ();
 692
 693         ev_job_succeeded (job);
 694
 695         return FALSE;
 696 }
 697
 698 static void
 699 ev_job_thumbnail_class_init (EvJobThumbnailClass *class)
 700 {
 701         GObjectClass *oclass = G_OBJECT_CLASS (class);
 702         EvJobClass   *job_class = EV_JOB_CLASS (class);
 703
 704         oclass->dispose = ev_job_thumbnail_dispose;
 705         job_class->run = ev_job_thumbnail_run;
 706 }
 707
 708 EvJob *
 709 ev_job_thumbnail_new (EvDocument *document,
 710                       gint        page,
 711                       gint        rotation,
 712                       gdouble     scale)
 713 {
 714         EvJobThumbnail *job;
 715
 716         ev_debug_message (DEBUG_JOBS, "%d", page);
 717
 718         job = g_object_new (EV_TYPE_JOB_THUMBNAIL, NULL);
 719
 720         EV_JOB (job)->document = g_object_ref (document);
 721         job->page = page;
 722         job->rotation = rotation;
 723         job->scale = scale;
 724
 725         return EV_JOB (job);
 726 }
 727
 728 /* EvJobFonts */
 729 static void
 730 ev_job_fonts_init (EvJobFonts *job)
 731 {
 732         EV_JOB (job)->run_mode = EV_JOB_RUN_MAIN_LOOP;
 733 }
 734
 735 static gboolean
 736 ev_job_fonts_run (EvJob *job)
 737 {
 738         EvJobFonts      *job_fonts = EV_JOB_FONTS (job);
 739         EvDocumentFonts *fonts = EV_DOCUMENT_FONTS (job->document);
 740
 741         ev_debug_message (DEBUG_JOBS, NULL);
 742
 743         /* Do not block the main loop */
 744         if (!ev_document_doc_mutex_trylock ())
 745                 return TRUE;
 746
 747         if (!ev_document_fc_mutex_trylock ())
 748                 return TRUE;
 749
 750 #ifdef EV_ENABLE_DEBUG
 751         /* We use the #ifdef in this case because of the if */
 752         if (ev_document_fonts_get_progress (fonts) == 0)
 753                 ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 754 #endif
 755
 756         job_fonts->scan_completed = !ev_document_fonts_scan (fonts, 20);
 757         g_signal_emit (job_fonts, job_fonts_signals[FONTS_UPDATED], 0,
 758                        ev_document_fonts_get_progress (fonts));
 759
 760         ev_document_fc_mutex_unlock ();
 761         ev_document_doc_mutex_unlock ();
 762
 763         if (job_fonts->scan_completed)
 764                 ev_job_succeeded (job);
 765
 766         return !job_fonts->scan_completed;
 767 }
 768
 769 static void
 770 ev_job_fonts_class_init (EvJobFontsClass *class)
 771 {
 772         EvJobClass *job_class = EV_JOB_CLASS (class);
 773
 774         job_class->run = ev_job_fonts_run;
 775
 776         job_fonts_signals[FONTS_UPDATED] =
 777                 g_signal_new ("updated",
 778                               EV_TYPE_JOB_FONTS,
 779                               G_SIGNAL_RUN_LAST,
 780                               G_STRUCT_OFFSET (EvJobFontsClass, updated),
 781                               NULL, NULL,
 782                               g_cclosure_marshal_VOID__DOUBLE,
 783                               G_TYPE_NONE,
 784                               1, G_TYPE_DOUBLE);
 785 }
 786
 787 EvJob *
 788 ev_job_fonts_new (EvDocument *document)
 789 {
 790         EvJobFonts *job;
 791
 792         ev_debug_message (DEBUG_JOBS, NULL);
 793
 794         job = g_object_new (EV_TYPE_JOB_FONTS, NULL);
 795
 796         EV_JOB (job)->document = g_object_ref (document);
 797
 798         return EV_JOB (job);
 799 }
 800
 801 /* EvJobLoad */
 802 static void
 803 ev_job_load_init (EvJobLoad *job)
 804 {
 805         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 806 }
 807
 808 static void
 809 ev_job_load_dispose (GObject *object)
 810 {
 811         EvJobLoad *job = EV_JOB_LOAD (object);
 812
 813         ev_debug_message (DEBUG_JOBS, "%s", job->uri);
 814
 815         if (job->uri) {
 816                 g_free (job->uri);
 817                 job->uri = NULL;
 818         }
 819
 820         if (job->password) {
 821                 g_free (job->password);
 822                 job->password = NULL;
 823         }
 824
 825         (* G_OBJECT_CLASS (ev_job_load_parent_class)->dispose) (object);
 826 }
 827
 828 static gboolean
 829 ev_job_load_run (EvJob *job)
 830 {
 831         EvJobLoad *job_load = EV_JOB_LOAD (job);
 832         GError    *error = NULL;
 833
 834         ev_debug_message (DEBUG_JOBS, "%s", job_load->uri);
 835         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 836
 837         ev_document_fc_mutex_lock ();
 838
 839         /* This job may already have a document even if the job didn't complete
 840            because, e.g., a password is required - if so, just reload rather than
 841            creating a new instance */
 842         if (job->document) {
 843                 const gchar *uncompressed_uri;
 844
 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                 uncompressed_uri = g_object_get_data (G_OBJECT (job->document),
 855                                                       "uri-uncompressed");
 856                 ev_document_load (job->document,
 857                                   uncompressed_uri ? uncompressed_uri : job_load->uri,
 858                                   &error);
 859         } else {
 860                 job->document = ev_document_factory_get_document (job_load->uri,
 861                                                                   &error);
 862         }
 863
 864         ev_document_fc_mutex_unlock ();
 865
 866         if (error) {
 867                 ev_job_failed_from_error (job, error);
 868                 g_error_free (error);
 869         } else {
 870                 ev_job_succeeded (job);
 871         }
 872
 873         return FALSE;
 874 }
 875
 876 static void
 877 ev_job_load_class_init (EvJobLoadClass *class)
 878 {
 879         GObjectClass *oclass = G_OBJECT_CLASS (class);
 880         EvJobClass   *job_class = EV_JOB_CLASS (class);
 881
 882         oclass->dispose = ev_job_load_dispose;
 883         job_class->run = ev_job_load_run;
 884 }
 885
 886 EvJob *
 887 ev_job_load_new (const gchar *uri)
 888 {
 889         EvJobLoad *job;
 890
 891         ev_debug_message (DEBUG_JOBS, "%s", uri);
 892
 893         job = g_object_new (EV_TYPE_JOB_LOAD, NULL);
 894         job->uri = g_strdup (uri);
 895
 896         return EV_JOB (job);
 897 }
 898
 899 void
 900 ev_job_load_set_uri (EvJobLoad *job, const gchar *uri)
 901 {
 902         ev_debug_message (DEBUG_JOBS, "%s", uri);
 903
 904         if (job->uri)
 905                 g_free (job->uri);
 906         job->uri = g_strdup (uri);
 907 }
 908
 909 void
 910 ev_job_load_set_password (EvJobLoad *job, const gchar *password)
 911 {
 912         ev_debug_message (DEBUG_JOBS, NULL);
 913
 914         if (job->password)
 915                 g_free (job->password);
 916         job->password = password ? g_strdup (password) : NULL;
 917 }
 918
 919 /* EvJobSave */
 920 static void
 921 ev_job_save_init (EvJobSave *job)
 922 {
 923         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
 924 }
 925
 926 static void
 927 ev_job_save_dispose (GObject *object)
 928 {
 929         EvJobSave *job = EV_JOB_SAVE (object);
 930
 931         ev_debug_message (DEBUG_JOBS, "%s", job->uri);
 932
 933         if (job->uri) {
 934                 g_free (job->uri);
 935                 job->uri = NULL;
 936         }
 937
 938         if (job->document_uri) {
 939                 g_free (job->document_uri);
 940                 job->document_uri = NULL;
 941         }
 942
 943         (* G_OBJECT_CLASS (ev_job_save_parent_class)->dispose) (object);
 944 }
 945
 946 static gboolean
 947 ev_job_save_run (EvJob *job)
 948 {
 949         EvJobSave *job_save = EV_JOB_SAVE (job);
 950         gint       fd;
 951         gchar     *tmp_filename = NULL;
 952         gchar     *local_uri;
 953         GError    *error = NULL;
 954
 955         ev_debug_message (DEBUG_JOBS, "uri: %s, document_uri: %s", job_save->uri, job_save->document_uri);
 956         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
 957
 958         fd = ev_mkstemp ("saveacopy.XXXXXX", &tmp_filename, &error);
 959         if (fd == -1) {
 960                 ev_job_failed_from_error (job, error);
 961                 g_error_free (error);
 962
 963                 return FALSE;
 964         }
 965
 966         ev_document_doc_mutex_lock ();
 967
 968         /* Save document to temp filename */
 969         local_uri = g_filename_to_uri (tmp_filename, NULL, &error);
 970         if (local_uri != NULL) {
 971                 ev_document_save (job->document, local_uri, &error);
 972         }
 973
 974         close (fd);
 975
 976         ev_document_doc_mutex_unlock ();
 977
 978         if (error) {
 979                 g_free (local_uri);
 980                 ev_job_failed_from_error (job, error);
 981                 g_error_free (error);
 982
 983                 return FALSE;
 984         }
 985
 986         /* If original document was compressed,
 987          * compress it again before saving
 988          */
 989         if (g_object_get_data (G_OBJECT (job->document), "uri-uncompressed")) {
 990                 EvCompressionType ctype = EV_COMPRESSION_NONE;
 991                 const gchar      *ext;
 992                 gchar            *uri_comp;
 993
 994                 ext = g_strrstr (job_save->document_uri, ".gz");
 995                 if (ext && g_ascii_strcasecmp (ext, ".gz") == 0)
 996                         ctype = EV_COMPRESSION_GZIP;
 997
 998                 ext = g_strrstr (job_save->document_uri, ".bz2");
 999                 if (ext && g_ascii_strcasecmp (ext, ".bz2") == 0)
1000                         ctype = EV_COMPRESSION_BZIP2;
1001
1002                 uri_comp = ev_file_compress (local_uri, ctype, &error);
1003                 g_free (local_uri);
1004                 g_unlink (tmp_filename);
1005
1006                 if (!uri_comp || error) {
1007                         local_uri = NULL;
1008                 } else {
1009                         local_uri = uri_comp;
1010                 }
1011         }
1012
1013         g_free (tmp_filename);
1014
1015         if (error) {
1016                 g_free (local_uri);
1017                 ev_job_failed_from_error (job, error);
1018                 g_error_free (error);
1019
1020                 return FALSE;
1021         }
1022
1023         if (!local_uri)
1024                 return FALSE;
1025
1026         ev_xfer_uri_simple (local_uri, job_save->uri, &error);
1027         ev_tmp_uri_unlink (local_uri);
1028
1029         if (error) {
1030                 ev_job_failed_from_error (job, error);
1031                 g_error_free (error);
1032         } else {
1033                 ev_job_succeeded (job);
1034         }
1035
1036         return FALSE;
1037 }
1038
1039 static void
1040 ev_job_save_class_init (EvJobSaveClass *class)
1041 {
1042         GObjectClass *oclass = G_OBJECT_CLASS (class);
1043         EvJobClass   *job_class = EV_JOB_CLASS (class);
1044
1045         oclass->dispose = ev_job_save_dispose;
1046         job_class->run = ev_job_save_run;
1047 }
1048
1049 EvJob *
1050 ev_job_save_new (EvDocument  *document,
1051                  const gchar *uri,
1052                  const gchar *document_uri)
1053 {
1054         EvJobSave *job;
1055
1056         ev_debug_message (DEBUG_JOBS, "uri: %s, document_uri: %s", uri, document_uri);
1057
1058         job = g_object_new (EV_TYPE_JOB_SAVE, NULL);
1059
1060         EV_JOB (job)->document = g_object_ref (document);
1061         job->uri = g_strdup (uri);
1062         job->document_uri = g_strdup (document_uri);
1063
1064         return EV_JOB (job);
1065 }
1066
1067 /* EvJobFind */
1068 static void
1069 ev_job_find_init (EvJobFind *job)
1070 {
1071         EV_JOB (job)->run_mode = EV_JOB_RUN_MAIN_LOOP;
1072 }
1073
1074 static void
1075 ev_job_find_dispose (GObject *object)
1076 {
1077         EvJobFind *job = EV_JOB_FIND (object);
1078
1079         ev_debug_message (DEBUG_JOBS, NULL);
1080
1081         if (job->text) {
1082                 g_free (job->text);
1083                 job->text = NULL;
1084         }
1085
1086         if (job->pages) {
1087                 gint i;
1088
1089                 for (i = 0; i < job->n_pages; i++) {
1090                         g_list_foreach (job->pages[i], (GFunc)g_free, NULL);
1091                         g_list_free (job->pages[i]);
1092                 }
1093
1094                 g_free (job->pages);
1095                 job->pages = NULL;
1096         }
1097
1098         (* G_OBJECT_CLASS (ev_job_find_parent_class)->dispose) (object);
1099 }
1100
1101 static gboolean
1102 ev_job_find_run (EvJob *job)
1103 {
1104         EvJobFind      *job_find = EV_JOB_FIND (job);
1105         EvDocumentFind *find = EV_DOCUMENT_FIND (job->document);
1106         EvPage         *ev_page;
1107         GList          *matches;
1108
1109         ev_debug_message (DEBUG_JOBS, NULL);
1110
1111         /* Do not block the main loop */
1112         if (!ev_document_doc_mutex_trylock ())
1113                 return TRUE;
1114
1115 #ifdef EV_ENABLE_DEBUG
1116         /* We use the #ifdef in this case because of the if */
1117         if (job_find->current_page == job_find->start_page)
1118                 ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
1119 #endif
1120
1121         ev_page = ev_document_get_page (job->document, job_find->current_page);
1122         matches = ev_document_find_find_text (find, ev_page, job_find->text,
1123                                               job_find->case_sensitive);
1124         g_object_unref (ev_page);
1125
1126         ev_document_doc_mutex_unlock ();
1127
1128         if (!job_find->has_results)
1129                 job_find->has_results = (matches != NULL);
1130
1131         job_find->pages[job_find->current_page] = matches;
1132         g_signal_emit (job_find, job_find_signals[FIND_UPDATED], 0, job_find->current_page);
1133
1134         job_find->current_page = (job_find->current_page + 1) % job_find->n_pages;
1135         if (job_find->current_page == job_find->start_page) {
1136                 ev_job_succeeded (job);
1137
1138                 return FALSE;
1139         }
1140
1141         return TRUE;
1142 }
1143
1144 static void
1145 ev_job_find_class_init (EvJobFindClass *class)
1146 {
1147         EvJobClass   *job_class = EV_JOB_CLASS (class);
1148         GObjectClass *gobject_class = G_OBJECT_CLASS (class);
1149
1150         job_class->run = ev_job_find_run;
1151         gobject_class->dispose = ev_job_find_dispose;
1152
1153         job_find_signals[FIND_UPDATED] =
1154                 g_signal_new ("updated",
1155                               EV_TYPE_JOB_FIND,
1156                               G_SIGNAL_RUN_LAST,
1157                               G_STRUCT_OFFSET (EvJobFindClass, updated),
1158                               NULL, NULL,
1159                               g_cclosure_marshal_VOID__INT,
1160                               G_TYPE_NONE,
1161                               1, G_TYPE_INT);
1162 }
1163
1164 EvJob *
1165 ev_job_find_new (EvDocument  *document,
1166                  gint         start_page,
1167                  gint         n_pages,
1168                  const gchar *text,
1169                  gboolean     case_sensitive)
1170 {
1171         EvJobFind *job;
1172
1173         ev_debug_message (DEBUG_JOBS, NULL);
1174
1175         job = g_object_new (EV_TYPE_JOB_FIND, NULL);
1176
1177         EV_JOB (job)->document = g_object_ref (document);
1178         job->start_page = start_page;
1179         job->current_page = start_page;
1180         job->n_pages = n_pages;
1181         job->pages = g_new0 (GList *, n_pages);
1182         job->text = g_strdup (text);
1183         job->case_sensitive = case_sensitive;
1184         job->has_results = FALSE;
1185
1186         return EV_JOB (job);
1187 }
1188
1189 gint
1190 ev_job_find_get_n_results (EvJobFind *job,
1191                            gint       page)
1192 {
1193         return g_list_length (job->pages[page]);
1194 }
1195
1196 gdouble
1197 ev_job_find_get_progress (EvJobFind *job)
1198 {
1199         gint pages_done;
1200
1201         if (ev_job_is_finished (EV_JOB (job)))
1202                 return 1.0;
1203
1204         if (job->current_page > job->start_page) {
1205                 pages_done = job->current_page - job->start_page + 1;
1206         } else if (job->current_page == job->start_page) {
1207                 pages_done = job->n_pages;
1208         } else {
1209                 pages_done = job->n_pages - job->start_page + job->current_page;
1210         }
1211
1212         return pages_done / (gdouble) job->n_pages;
1213 }
1214
1215 gboolean
1216 ev_job_find_has_results (EvJobFind *job)
1217 {
1218         return job->has_results;
1219 }
1220
1221 GList **
1222 ev_job_find_get_results (EvJobFind *job)
1223 {
1224         return job->pages;
1225 }
1226
1227 /* EvJobLayers */
1228 static void
1229 ev_job_layers_init (EvJobLayers *job)
1230 {
1231         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
1232 }
1233
1234 static void
1235 ev_job_layers_dispose (GObject *object)
1236 {
1237         EvJobLayers *job;
1238
1239         ev_debug_message (DEBUG_JOBS, NULL);
1240
1241         job = EV_JOB_LAYERS (object);
1242
1243         if (job->model) {
1244                 g_object_unref (job->model);
1245                 job->model = NULL;
1246         }
1247
1248         (* G_OBJECT_CLASS (ev_job_layers_parent_class)->dispose) (object);
1249 }
1250
1251 static gboolean
1252 ev_job_layers_run (EvJob *job)
1253 {
1254         EvJobLayers *job_layers = EV_JOB_LAYERS (job);
1255
1256         ev_debug_message (DEBUG_JOBS, NULL);
1257         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
1258
1259         ev_document_doc_mutex_lock ();
1260         job_layers->model = ev_document_layers_get_layers (EV_DOCUMENT_LAYERS (job->document));
1261         ev_document_doc_mutex_unlock ();
1262
1263         ev_job_succeeded (job);
1264
1265         return FALSE;
1266 }
1267
1268 static void
1269 ev_job_layers_class_init (EvJobLayersClass *class)
1270 {
1271         GObjectClass *oclass = G_OBJECT_CLASS (class);
1272         EvJobClass   *job_class = EV_JOB_CLASS (class);
1273
1274         oclass->dispose = ev_job_layers_dispose;
1275         job_class->run = ev_job_layers_run;
1276 }
1277
1278 EvJob *
1279 ev_job_layers_new (EvDocument *document)
1280 {
1281         EvJob *job;
1282
1283         ev_debug_message (DEBUG_JOBS, NULL);
1284
1285         job = g_object_new (EV_TYPE_JOB_LAYERS, NULL);
1286         job->document = g_object_ref (document);
1287
1288         return job;
1289 }
1290
1291 /* EvJobExport */
1292 static void
1293 ev_job_export_init (EvJobExport *job)
1294 {
1295         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
1296         job->page = -1;
1297 }
1298
1299 static void
1300 ev_job_export_dispose (GObject *object)
1301 {
1302         EvJobExport *job;
1303
1304         ev_debug_message (DEBUG_JOBS, NULL);
1305
1306         job = EV_JOB_EXPORT (object);
1307
1308         if (job->rc) {
1309                 g_object_unref (job->rc);
1310                 job->rc = NULL;
1311         }
1312
1313         (* G_OBJECT_CLASS (ev_job_export_parent_class)->dispose) (object);
1314 }
1315
1316 static gboolean
1317 ev_job_export_run (EvJob *job)
1318 {
1319         EvJobExport *job_export = EV_JOB_EXPORT (job);
1320         EvPage      *ev_page;
1321
1322         g_assert (job_export->page != -1);
1323
1324         ev_debug_message (DEBUG_JOBS, NULL);
1325         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
1326
1327         ev_document_doc_mutex_lock ();
1328
1329         ev_page = ev_document_get_page (job->document, job_export->page);
1330         if (job_export->rc) {
1331                 job->failed = FALSE;
1332                 job->finished = FALSE;
1333                 g_clear_error (&job->error);
1334
1335                 ev_render_context_set_page (job_export->rc, ev_page);
1336         } else {
1337                 job_export->rc = ev_render_context_new (ev_page, 0, 1.0);
1338         }
1339         g_object_unref (ev_page);
1340
1341         ev_file_exporter_do_page (EV_FILE_EXPORTER (job->document), job_export->rc);
1342
1343         ev_document_doc_mutex_unlock ();
1344
1345         ev_job_succeeded (job);
1346
1347         return FALSE;
1348 }
1349
1350 static void
1351 ev_job_export_class_init (EvJobExportClass *class)
1352 {
1353         GObjectClass *oclass = G_OBJECT_CLASS (class);
1354         EvJobClass   *job_class = EV_JOB_CLASS (class);
1355
1356         oclass->dispose = ev_job_export_dispose;
1357         job_class->run = ev_job_export_run;
1358 }
1359
1360 EvJob *
1361 ev_job_export_new (EvDocument *document)
1362 {
1363         EvJob *job;
1364
1365         ev_debug_message (DEBUG_JOBS, NULL);
1366
1367         job = g_object_new (EV_TYPE_JOB_EXPORT, NULL);
1368         job->document = g_object_ref (document);
1369
1370         return job;
1371 }
1372
1373 void
1374 ev_job_export_set_page (EvJobExport *job,
1375                         gint         page)
1376 {
1377         job->page = page;
1378 }
1379
1380 /* EvJobPrint */
1381 static void
1382 ev_job_print_init (EvJobPrint *job)
1383 {
1384         EV_JOB (job)->run_mode = EV_JOB_RUN_THREAD;
1385         job->page = -1;
1386 }
1387
1388 static void
1389 ev_job_print_dispose (GObject *object)
1390 {
1391         EvJobPrint *job;
1392
1393         ev_debug_message (DEBUG_JOBS, NULL);
1394
1395         job = EV_JOB_PRINT (object);
1396
1397         if (job->cr) {
1398                 cairo_destroy (job->cr);
1399                 job->cr = NULL;
1400         }
1401
1402         (* G_OBJECT_CLASS (ev_job_print_parent_class)->dispose) (object);
1403 }
1404
1405 static gboolean
1406 ev_job_print_run (EvJob *job)
1407 {
1408         EvJobPrint     *job_print = EV_JOB_PRINT (job);
1409         EvPage         *ev_page;
1410         cairo_status_t  cr_status;
1411
1412         g_assert (job_print->page != -1);
1413         g_assert (job_print->cr != NULL);
1414
1415         ev_debug_message (DEBUG_JOBS, NULL);
1416         ev_profiler_start (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
1417
1418         job->failed = FALSE;
1419         job->finished = FALSE;
1420         g_clear_error (&job->error);
1421
1422         ev_document_doc_mutex_lock ();
1423
1424         ev_page = ev_document_get_page (job->document, job_print->page);
1425         ev_document_print_print_page (EV_DOCUMENT_PRINT (job->document),
1426                                       ev_page, job_print->cr);
1427         g_object_unref (ev_page);
1428
1429         ev_document_doc_mutex_unlock ();
1430
1431         cr_status = cairo_status (job_print->cr);
1432         if (cr_status == CAIRO_STATUS_SUCCESS) {
1433                 ev_job_succeeded (job);
1434         } else {
1435                 ev_job_failed (job,
1436                                GTK_PRINT_ERROR,
1437                                GTK_PRINT_ERROR_GENERAL,
1438                                _("Failed to print page %d: %s"),
1439                                job_print->page,
1440                                cairo_status_to_string (cr_status));
1441         }
1442
1443         return FALSE;
1444 }
1445
1446 static void
1447 ev_job_print_class_init (EvJobPrintClass *class)
1448 {
1449         GObjectClass *oclass = G_OBJECT_CLASS (class);
1450         EvJobClass   *job_class = EV_JOB_CLASS (class);
1451
1452         oclass->dispose = ev_job_print_dispose;
1453         job_class->run = ev_job_print_run;
1454 }
1455
1456 EvJob *
1457 ev_job_print_new (EvDocument *document)
1458 {
1459         EvJob *job;
1460
1461         ev_debug_message (DEBUG_JOBS, NULL);
1462
1463         job = g_object_new (EV_TYPE_JOB_PRINT, NULL);
1464         job->document = g_object_ref (document);
1465
1466         return job;
1467 }
1468
1469 void
1470 ev_job_print_set_page (EvJobPrint *job,
1471                        gint        page)
1472 {
1473         job->page = page;
1474 }
1475
1476 void
1477 ev_job_print_set_cairo (EvJobPrint *job,
1478                         cairo_t    *cr)
1479 {
1480         if (job->cr == cr)
1481                 return;
1482
1483         if (job->cr)
1484                 cairo_destroy (job->cr);
1485         job->cr = cr ? cairo_reference (cr) : NULL;
1486 }