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