backend/pdf/ev-poppler.cc

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* this file is part of evince, a gnome document viewer
   3  *
   4  * Copyright (C) 2009, Juanjo Marín <juanj.marin@juntadeandalucia.es>
   5  * Copyright (C) 2004, Red Hat, Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include "config.h"
  23
  24 #include <math.h>
  25 #include <string.h>
  26 #include <gtk/gtk.h>
  27 #include <poppler.h>
  28 #include <poppler-document.h>
  29 #include <poppler-page.h>
  30 #ifdef HAVE_CAIRO_PDF
  31 #include <cairo-pdf.h>
  32 #endif
  33 #ifdef HAVE_CAIRO_PS
  34 #include <cairo-ps.h>
  35 #endif
  36 #include <glib/gi18n-lib.h>
  37
  38 #include "ev-poppler.h"
  39 #include "ev-file-exporter.h"
  40 #include "ev-mapping.h"
  41 #include "ev-document-find.h"
  42 #include "ev-document-misc.h"
  43 #include "ev-document-links.h"
  44 #include "ev-document-images.h"
  45 #include "ev-document-fonts.h"
  46 #include "ev-document-security.h"
  47 #include "ev-document-thumbnails.h"
  48 #include "ev-document-transition.h"
  49 #include "ev-document-forms.h"
  50 #include "ev-document-layers.h"
  51 #include "ev-document-print.h"
  52 #include "ev-document-annotations.h"
  53 #include "ev-document-attachments.h"
  54 #include "ev-selection.h"
  55 #include "ev-transition-effect.h"
  56 #include "ev-attachment.h"
  57 #include "ev-image.h"
  58
  59 #include <libxml/tree.h>
  60 #include <libxml/parser.h>
  61 #include <libxml/xpath.h>
  62 #include <libxml/xpathInternals.h>
  63
  64 #if (defined (HAVE_POPPLER_PAGE_RENDER)) && (defined (HAVE_CAIRO_PDF) || defined (HAVE_CAIRO_PS))
  65 #define HAVE_CAIRO_PRINT
  66 #endif
  67
  68 /* fields from the XMP Rights Management Schema, XMP Specification Sept 2005, pag. 45 */
  69 #define LICENSE_MARKED "/x:xmpmeta/rdf:RDF/rdf:Description/xmpRights:Marked"
  70 #define LICENSE_TEXT "/x:xmpmeta/rdf:RDF/rdf:Description/dc:rights/rdf:Alt/rdf:li[lang('%s')]"
  71 #define LICENSE_WEB_STATEMENT "/x:xmpmeta/rdf:RDF/rdf:Description/xmpRights:WebStatement"
  72 /* license field from Creative Commons schema, http://creativecommons.org/ns */
  73 #define LICENSE_URI "/x:xmpmeta/rdf:RDF/rdf:Description/cc:license/@rdf:resource"
  74
  75 typedef struct {
  76         PdfDocument *document;
  77         char *text;
  78         GList **pages;
  79         guint idle;
  80         int start_page;
  81         int search_page;
  82 } PdfDocumentSearch;
  83
  84 typedef struct {
  85         EvFileExporterFormat format;
  86
  87         /* Pages per sheet */
  88         gint pages_per_sheet;
  89         gint pages_printed;
  90         gint pages_x;
  91         gint pages_y;
  92         gdouble paper_width;
  93         gdouble paper_height;
  94
  95 #ifdef HAVE_CAIRO_PRINT
  96         cairo_t *cr;
  97 #else
  98         PopplerPSFile *ps_file;
  99 #endif
 100 } PdfPrintContext;
 101
 102 struct _PdfDocumentClass
 103 {
 104         EvDocumentClass parent_class;
 105 };
 106
 107 struct _PdfDocument
 108 {
 109         EvDocument parent_instance;
 110
 111         PopplerDocument *document;
 112         gchar *password;
 113         gboolean modified;
 114
 115         PopplerFontInfo *font_info;
 116         PopplerFontsIter *fonts_iter;
 117         int fonts_scanned_pages;
 118
 119         PdfDocumentSearch *search;
 120         PdfPrintContext *print_ctx;
 121
 122         GList *layers;
 123 };
 124
 125 static void pdf_document_security_iface_init             (EvDocumentSecurityIface    *iface);
 126 static void pdf_document_document_thumbnails_iface_init  (EvDocumentThumbnailsIface  *iface);
 127 static void pdf_document_document_links_iface_init       (EvDocumentLinksIface       *iface);
 128 static void pdf_document_document_images_iface_init      (EvDocumentImagesIface      *iface);
 129 static void pdf_document_document_forms_iface_init       (EvDocumentFormsIface       *iface);
 130 static void pdf_document_document_fonts_iface_init       (EvDocumentFontsIface       *iface);
 131 static void pdf_document_document_layers_iface_init      (EvDocumentLayersIface      *iface);
 132 #ifdef HAVE_POPPLER_PAGE_RENDER
 133 static void pdf_document_document_print_iface_init       (EvDocumentPrintIface       *iface);
 134 #endif
 135 static void pdf_document_document_annotations_iface_init (EvDocumentAnnotationsIface *iface);
 136 static void pdf_document_document_attachments_iface_init (EvDocumentAttachmentsIface *iface);
 137 static void pdf_document_find_iface_init                 (EvDocumentFindIface        *iface);
 138 static void pdf_document_file_exporter_iface_init        (EvFileExporterIface        *iface);
 139 static void pdf_selection_iface_init                     (EvSelectionIface           *iface);
 140 static void pdf_document_page_transition_iface_init      (EvDocumentTransitionIface  *iface);
 141 static void pdf_document_thumbnails_get_dimensions       (EvDocumentThumbnails       *document_thumbnails,
 142                                                           EvRenderContext            *rc,
 143                                                           gint                       *width,
 144                                                           gint                       *height);
 145 static int  pdf_document_get_n_pages                     (EvDocument                 *document);
 146
 147 static EvLinkDest *ev_link_dest_from_dest    (PdfDocument       *pdf_document,
 148                                               PopplerDest       *dest);
 149 static EvLink     *ev_link_from_action       (PdfDocument       *pdf_document,
 150                                               PopplerAction     *action);
 151 static void        pdf_document_search_free  (PdfDocumentSearch *search);
 152 static void        pdf_print_context_free    (PdfPrintContext   *ctx);
 153 static gboolean    attachment_save_to_buffer (PopplerAttachment *attachment,
 154                                               gchar            **buffer,
 155                                               gsize             *buffer_size,
 156                                               GError           **error);
 157
 158 EV_BACKEND_REGISTER_WITH_CODE (PdfDocument, pdf_document,
 159                          {
 160                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
 161                                                                  pdf_document_security_iface_init);
 162                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
 163                                                                  pdf_document_document_thumbnails_iface_init);
 164                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
 165                                                                  pdf_document_document_links_iface_init);
 166                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_IMAGES,
 167                                                                  pdf_document_document_images_iface_init);
 168                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FORMS,
 169                                                                  pdf_document_document_forms_iface_init);
 170                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
 171                                                                  pdf_document_document_fonts_iface_init);
 172                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LAYERS,
 173                                                                  pdf_document_document_layers_iface_init);
 174 #ifdef HAVE_POPPLER_PAGE_RENDER
 175                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_PRINT,
 176                                                                  pdf_document_document_print_iface_init);
 177 #endif
 178                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_ANNOTATIONS,
 179                                                                  pdf_document_document_annotations_iface_init);
 180                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_ATTACHMENTS,
 181                                                                  pdf_document_document_attachments_iface_init);
 182                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
 183                                                                  pdf_document_find_iface_init);
 184                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER,
 185                                                                  pdf_document_file_exporter_iface_init);
 186                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_SELECTION,
 187                                                                  pdf_selection_iface_init);
 188                                  EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_TRANSITION,
 189                                                                  pdf_document_page_transition_iface_init);
 190                          });
 191
 192 static void
 193 pdf_document_search_free (PdfDocumentSearch   *search)
 194 {
 195         PdfDocument *pdf_document = search->document;
 196         int n_pages;
 197         int i;
 198
 199         if (search->idle != 0)
 200                 g_source_remove (search->idle);
 201
 202         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 203         for (i = 0; i < n_pages; i++) {
 204                 g_list_foreach (search->pages[i], (GFunc) g_free, NULL);
 205                 g_list_free (search->pages[i]);
 206         }
 207         g_free (search->pages);
 208
 209         g_free (search->text);
 210         g_free (search);
 211 }
 212
 213 static void
 214 pdf_document_dispose (GObject *object)
 215 {
 216         PdfDocument *pdf_document = PDF_DOCUMENT(object);
 217
 218         if (pdf_document->print_ctx) {
 219                 pdf_print_context_free (pdf_document->print_ctx);
 220                 pdf_document->print_ctx = NULL;
 221         }
 222
 223         if (pdf_document->search) {
 224                 pdf_document_search_free (pdf_document->search);
 225                 pdf_document->search = NULL;
 226         }
 227
 228         if (pdf_document->document) {
 229                 g_object_unref (pdf_document->document);
 230         }
 231
 232         if (pdf_document->font_info) {
 233                 poppler_font_info_free (pdf_document->font_info);
 234         }
 235
 236         if (pdf_document->fonts_iter) {
 237                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 238         }
 239
 240         if (pdf_document->layers) {
 241                 g_list_foreach (pdf_document->layers, (GFunc)g_object_unref, NULL);
 242                 g_list_free (pdf_document->layers);
 243         }
 244
 245         G_OBJECT_CLASS (pdf_document_parent_class)->dispose (object);
 246 }
 247
 248 static void
 249 pdf_document_init (PdfDocument *pdf_document)
 250 {
 251         pdf_document->password = NULL;
 252 }
 253
 254 static void
 255 convert_error (GError  *poppler_error,
 256                GError **error)
 257 {
 258         if (poppler_error == NULL)
 259                 return;
 260
 261         if (poppler_error->domain == POPPLER_ERROR) {
 262                 /* convert poppler errors into EvDocument errors */
 263                 gint code = EV_DOCUMENT_ERROR_INVALID;
 264                 if (poppler_error->code == POPPLER_ERROR_INVALID)
 265                         code = EV_DOCUMENT_ERROR_INVALID;
 266                 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
 267                         code = EV_DOCUMENT_ERROR_ENCRYPTED;
 268
 269                 g_set_error_literal (error,
 270                                      EV_DOCUMENT_ERROR,
 271                                      code,
 272                                      poppler_error->message);
 273
 274                 g_error_free (poppler_error);
 275         } else {
 276                 g_propagate_error (error, poppler_error);
 277         }
 278 }
 279
 280
 281 /* EvDocument */
 282 static gboolean
 283 pdf_document_save (EvDocument  *document,
 284                    const char  *uri,
 285                    GError     **error)
 286 {
 287         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 288         gboolean retval;
 289         GError *poppler_error = NULL;
 290
 291         if (pdf_document->modified) {
 292                 retval = poppler_document_save (pdf_document->document,
 293                                                 uri, &poppler_error);
 294         } else {
 295                 retval = poppler_document_save_a_copy (pdf_document->document,
 296                                                        uri, &poppler_error);
 297         }
 298
 299         if (! retval)
 300                 convert_error (poppler_error, error);
 301
 302         return retval;
 303 }
 304
 305 static gboolean
 306 pdf_document_load (EvDocument   *document,
 307                    const char   *uri,
 308                    GError      **error)
 309 {
 310         GError *poppler_error = NULL;
 311         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 312
 313         pdf_document->document =
 314                 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
 315
 316         if (pdf_document->document == NULL) {
 317                 convert_error (poppler_error, error);
 318                 return FALSE;
 319         }
 320
 321         return TRUE;
 322 }
 323
 324 static int
 325 pdf_document_get_n_pages (EvDocument *document)
 326 {
 327         return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
 328 }
 329
 330 static EvPage *
 331 pdf_document_get_page (EvDocument *document,
 332                        gint        index)
 333 {
 334         PdfDocument *pdf_document = PDF_DOCUMENT (document);
 335         PopplerPage *poppler_page;
 336         EvPage      *page;
 337
 338         poppler_page = poppler_document_get_page (pdf_document->document, index);
 339         page = ev_page_new (index);
 340         page->backend_page = (EvBackendPage)g_object_ref (poppler_page);
 341         page->backend_destroy_func = (EvBackendPageDestroyFunc)g_object_unref;
 342         g_object_unref (poppler_page);
 343
 344         return page;
 345 }
 346
 347 static void
 348 pdf_document_get_page_size (EvDocument *document,
 349                             EvPage     *page,
 350                             double     *width,
 351                             double     *height)
 352 {
 353         g_return_if_fail (POPPLER_IS_PAGE (page->backend_page));
 354
 355         poppler_page_get_size (POPPLER_PAGE (page->backend_page), width, height);
 356 }
 357
 358 static char *
 359 pdf_document_get_page_label (EvDocument *document,
 360                              EvPage     *page)
 361 {
 362         char *label = NULL;
 363
 364         g_return_val_if_fail (POPPLER_IS_PAGE (page->backend_page), NULL);
 365
 366         g_object_get (G_OBJECT (page->backend_page),
 367                       "label", &label,
 368                       NULL);
 369         return label;
 370 }
 371
 372 static cairo_surface_t *
 373 pdf_page_render (PopplerPage     *page,
 374                  gint             width,
 375                  gint             height,
 376                  EvRenderContext *rc)
 377 {
 378         cairo_surface_t *surface;
 379
 380 #ifdef HAVE_POPPLER_PAGE_RENDER
 381         cairo_t *cr;
 382
 383         surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
 384                                               width, height);
 385         cr = cairo_create (surface);
 386
 387         switch (rc->rotation) {
 388                 case 90:
 389                         cairo_translate (cr, width, 0);
 390                         break;
 391                 case 180:
 392                         cairo_translate (cr, width, height);
 393                         break;
 394                 case 270:
 395                         cairo_translate (cr, 0, height);
 396                         break;
 397                 default:
 398                         cairo_translate (cr, 0, 0);
 399         }
 400         cairo_scale (cr, rc->scale, rc->scale);
 401         cairo_rotate (cr, rc->rotation * G_PI / 180.0);
 402         poppler_page_render (page, cr);
 403
 404         cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OVER);
 405         cairo_set_source_rgb (cr, 1., 1., 1.);
 406         cairo_paint (cr);
 407
 408         cairo_destroy (cr);
 409 #else /* HAVE_POPPLER_PAGE_RENDER */
 410         GdkPixbuf *pixbuf;
 411
 412         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
 413                                  FALSE, 8,
 414                                  width, height);
 415
 416         poppler_page_render_to_pixbuf (page,
 417                                        0, 0,
 418                                        width, height,
 419                                        rc->scale,
 420                                        rc->rotation,
 421                                        pixbuf);
 422         surface = ev_document_misc_surface_from_pixbuf (pixbuf);
 423         g_object_unref (pixbuf);
 424 #endif /* HAVE_POPPLER_PAGE_RENDER */
 425
 426         return surface;
 427 }
 428
 429 static cairo_surface_t *
 430 pdf_document_render (EvDocument      *document,
 431                      EvRenderContext *rc)
 432 {
 433         PdfDocument *pdf_document;
 434         PopplerPage *poppler_page;
 435         double width_points, height_points;
 436         gint width, height;
 437
 438         poppler_page = POPPLER_PAGE (rc->page->backend_page);
 439
 440         poppler_page_get_size (poppler_page,
 441                                &width_points, &height_points);
 442
 443         if (rc->rotation == 90 || rc->rotation == 270) {
 444                 width = (int) ((height_points * rc->scale) + 0.5);
 445                 height = (int) ((width_points * rc->scale) + 0.5);
 446         } else {
 447                 width = (int) ((width_points * rc->scale) + 0.5);
 448                 height = (int) ((height_points * rc->scale) + 0.5);
 449         }
 450
 451         return pdf_page_render (poppler_page,
 452                                 width, height, rc);
 453 }
 454
 455 /* reference:
 456 http://www.pdfa.org/lib/exe/fetch.php?id=pdfa%3Aen%3Atechdoc&cache=cache&media=pdfa:techdoc:tn0001_pdfa-1_and_namespaces_2008-03-18.pdf */
 457 static char *
 458 pdf_document_get_format_from_metadata (xmlDocPtr          doc,
 459                                        xmlXPathContextPtr xpathCtx)
 460 {
 461         xmlXPathObjectPtr xpathObj;
 462         xmlChar *part = NULL;
 463         xmlChar *conf = NULL;
 464         char *result = NULL;
 465         int i;
 466
 467         /* add pdf/a namespaces */
 468         xmlXPathRegisterNs (xpathCtx, BAD_CAST "x", BAD_CAST "adobe:ns:meta/");
 469         xmlXPathRegisterNs (xpathCtx, BAD_CAST "rdf", BAD_CAST "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
 470         xmlXPathRegisterNs (xpathCtx, BAD_CAST "pdfaid", BAD_CAST "http://www.aiim.org/pdfa/ns/id/");
 471
 472         /* reads pdf/a part */
 473         /* first syntax: child node */
 474         xpathObj = xmlXPathEvalExpression (BAD_CAST "/x:xmpmeta/rdf:RDF/rdf:Description/pdfaid:part", xpathCtx);
 475         if (xpathObj != NULL) {
 476                 if (xpathObj->nodesetval != NULL && xpathObj->nodesetval->nodeNr != 0)
 477                         part = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 478
 479                 xmlXPathFreeObject (xpathObj);
 480         }
 481         if (part == NULL) {
 482                 /* second syntax: attribute */
 483                 xpathObj = xmlXPathEvalExpression (BAD_CAST "/x:xmpmeta/rdf:RDF/rdf:Description/@pdfaid:part", xpathCtx);
 484                 if (xpathObj != NULL) {
 485                         if (xpathObj->nodesetval != NULL && xpathObj->nodesetval->nodeNr != 0)
 486                                 part = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 487
 488                         xmlXPathFreeObject (xpathObj);
 489                 }
 490         }
 491
 492         /* reads pdf/a conformance */
 493         /* first syntax: child node */
 494         xpathObj = xmlXPathEvalExpression (BAD_CAST "/x:xmpmeta/rdf:RDF/rdf:Description/pdfaid:conformance", xpathCtx);
 495         if (xpathObj != NULL) {
 496                 if (xpathObj->nodesetval != NULL && xpathObj->nodesetval->nodeNr != 0)
 497                         conf = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 498
 499                 xmlXPathFreeObject (xpathObj);
 500         }
 501         if (conf == NULL) {
 502                 /* second syntax: attribute */
 503                 xpathObj = xmlXPathEvalExpression (BAD_CAST "/x:xmpmeta/rdf:RDF/rdf:Description/@pdfaid:conformance", xpathCtx);
 504                 if (xpathObj != NULL) {
 505                         if (xpathObj->nodesetval != NULL && xpathObj->nodesetval->nodeNr != 0)
 506                                 conf = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 507
 508                         xmlXPathFreeObject (xpathObj);
 509                 }
 510         }
 511
 512         if (part != NULL && conf != NULL) {
 513                 /* makes conf lowercase */
 514                 for (i = 0; conf[i]; i++)
 515                         conf[i] = g_ascii_tolower (conf[i]);
 516
 517                 /* return buffer */
 518                 result = g_strdup_printf ("PDF/A - %s%s", part, conf);
 519         }
 520
 521         /* Cleanup */
 522         xmlFree (part);
 523         xmlFree (conf);
 524
 525         return result;
 526 }
 527
 528 static EvDocumentLicense *
 529 pdf_document_get_license_from_metadata (xmlDocPtr          doc,
 530                                         xmlXPathContextPtr xpathCtx)
 531 {
 532         xmlXPathObjectPtr xpathObj;
 533         xmlChar *marked = NULL;
 534         const char *language_string;
 535         char  *aux;
 536         gchar **tags;
 537         gchar *tag, *tag_aux;
 538         int i, j;
 539         EvDocumentLicense *license;
 540
 541         /* register namespaces */
 542         xmlXPathRegisterNs (xpathCtx, BAD_CAST "x", BAD_CAST "adobe:ns:meta/");
 543         xmlXPathRegisterNs (xpathCtx, BAD_CAST "rdf", BAD_CAST "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
 544         xmlXPathRegisterNs (xpathCtx, BAD_CAST "dc", BAD_CAST "http://purl.org/dc/elements/1.1/");
 545         /* XMP Rights Management Schema */
 546         xmlXPathRegisterNs (xpathCtx, BAD_CAST "xmpRights", BAD_CAST "http://ns.adobe.com/xap/1.0/rights/");
 547         /* Creative Commons Schema */
 548         xmlXPathRegisterNs (xpathCtx, BAD_CAST "cc", BAD_CAST "http://creativecommons.org/ns#");
 549
 550         /* checking if the document has been marked as defined on the XMP Rights
 551          * Management Schema */
 552         xpathObj = xmlXPathEvalExpression (BAD_CAST LICENSE_MARKED, xpathCtx);
 553         if (xpathObj != NULL) {
 554                 if (xpathObj->nodesetval != NULL &&
 555                     xpathObj->nodesetval->nodeNr != 0)
 556                         marked = xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 557                 xmlXPathFreeObject (xpathObj);
 558         }
 559
 560         /* a) Not marked => No XMP Rights information */
 561         if (!marked) {
 562                 xmlFree (marked);
 563                 return NULL;
 564         }
 565
 566         license = ev_document_license_new ();
 567
 568         /* b) Marked False => Public Domain, no copyrighted material and no
 569          * license needed */
 570         if (g_strrstr ((char *) marked, "False") != NULL) {
 571                 license->text = g_strdup (_("This work is in the Public Domain"));
 572         /* c) Marked True => Copyrighted material */
 573         } else {
 574                 /* Checking usage terms as defined by the XMP Rights Management
 575                  * Schema. This field is recomended to be checked by Creative
 576                  * Commons */
 577                 /* 1) checking for a suitable localized string */
 578                 language_string = pango_language_to_string (gtk_get_default_language ());
 579                 tags = g_strsplit (language_string, "-", -1);
 580                 i = g_strv_length (tags);
 581                 while (i-- && !license->text) {
 582                         tag = g_strdup (tags[0]);
 583                         for (j = 1; j <= i; j++) {
 584                                 tag_aux = g_strdup_printf ("%s-%s", tag, tags[j]);
 585                                 g_free (tag);
 586                                 tag = tag_aux;
 587                         }
 588                         aux = g_strdup_printf (LICENSE_TEXT, tag);
 589                         xpathObj = xmlXPathEvalExpression (BAD_CAST aux, xpathCtx);
 590                         if (xpathObj != NULL) {
 591                                 if (xpathObj->nodesetval != NULL &&
 592                                     xpathObj->nodesetval->nodeNr != 0)
 593                                         license->text = (gchar *)xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 594                                 xmlXPathFreeObject (xpathObj);
 595                         }
 596                         g_free (tag);
 597                         g_free (aux);
 598                 }
 599                 g_strfreev(tags);
 600
 601                 /* 2) if not, use the default string */
 602                 if (!license->text) {
 603                         aux = g_strdup_printf (LICENSE_TEXT, "x-default");
 604                         xpathObj = xmlXPathEvalExpression (BAD_CAST aux, xpathCtx);
 605                         if (xpathObj != NULL) {
 606                                 if (xpathObj->nodesetval != NULL &&
 607                                     xpathObj->nodesetval->nodeNr != 0)
 608                                         license->text = (gchar *)xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 609                                 xmlXPathFreeObject (xpathObj);
 610                         }
 611                         g_free (aux);
 612                 }
 613
 614                 /* Checking the license URI as defined by the Creative Commons
 615                  * Schema. This field is recomended to be checked by Creative
 616                  * Commons */
 617                 xpathObj = xmlXPathEvalExpression (BAD_CAST LICENSE_URI, xpathCtx);
 618                 if (xpathObj != NULL) {
 619                         if (xpathObj->nodesetval != NULL &&
 620                             xpathObj->nodesetval->nodeNr != 0)
 621                                 license->uri = (gchar *)xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 622                         xmlXPathFreeObject (xpathObj);
 623                 }
 624
 625                 /* Checking the web statement as defined by the XMP Rights
 626                  * Management Schema. Checking it out is a sort of above-and-beyond
 627                  * the basic recommendations by Creative Commons. It can be
 628                  * considered as a "reinforcement" approach to add certainty. */
 629                 xpathObj = xmlXPathEvalExpression (BAD_CAST LICENSE_WEB_STATEMENT, xpathCtx);
 630                 if (xpathObj != NULL) {
 631                         if (xpathObj->nodesetval != NULL &&
 632                             xpathObj->nodesetval->nodeNr != 0)
 633                                 license->web_statement = (gchar *)xmlNodeGetContent (xpathObj->nodesetval->nodeTab[0]);
 634                         xmlXPathFreeObject (xpathObj);
 635                 }
 636         }
 637         xmlFree (marked);
 638
 639         if (!license->text && !license->uri && !license->web_statement) {
 640                 ev_document_license_free (license);
 641                 return NULL;
 642         }
 643
 644         return license;
 645 }
 646
 647 static void
 648 pdf_document_parse_metadata (const gchar    *metadata,
 649                              EvDocumentInfo *info)
 650 {
 651         xmlDocPtr          doc;
 652         xmlXPathContextPtr xpathCtx;
 653         gchar             *fmt;
 654
 655         doc = xmlParseMemory (metadata, strlen (metadata));
 656         if (doc == NULL)
 657                 return;         /* invalid xml metadata */
 658
 659         xpathCtx = xmlXPathNewContext (doc);
 660         if (xpathCtx == NULL) {
 661                 xmlFreeDoc (doc);
 662                 return;         /* invalid xpath context */
 663         }
 664
 665         fmt = pdf_document_get_format_from_metadata (doc, xpathCtx);
 666         if (fmt != NULL) {
 667                 g_free (info->format);
 668                 info->format = fmt;
 669         }
 670
 671         info->license = pdf_document_get_license_from_metadata (doc, xpathCtx);
 672
 673         xmlXPathFreeContext (xpathCtx);
 674         xmlFreeDoc (doc);
 675 }
 676
 677
 678 static EvDocumentInfo *
 679 pdf_document_get_info (EvDocument *document)
 680 {
 681         EvDocumentInfo *info;
 682         PopplerPageLayout layout;
 683         PopplerPageMode mode;
 684         PopplerViewerPreferences view_prefs;
 685         PopplerPermissions permissions;
 686         EvPage *page;
 687         char *metadata;
 688
 689         info = g_new0 (EvDocumentInfo, 1);
 690
 691         info->fields_mask = EV_DOCUMENT_INFO_TITLE |
 692                             EV_DOCUMENT_INFO_FORMAT |
 693                             EV_DOCUMENT_INFO_AUTHOR |
 694                             EV_DOCUMENT_INFO_SUBJECT |
 695                             EV_DOCUMENT_INFO_KEYWORDS |
 696                             EV_DOCUMENT_INFO_LAYOUT |
 697                             EV_DOCUMENT_INFO_START_MODE |
 698                             EV_DOCUMENT_INFO_PERMISSIONS |
 699                             EV_DOCUMENT_INFO_UI_HINTS |
 700                             EV_DOCUMENT_INFO_CREATOR |
 701                             EV_DOCUMENT_INFO_PRODUCER |
 702                             EV_DOCUMENT_INFO_CREATION_DATE |
 703                             EV_DOCUMENT_INFO_MOD_DATE |
 704                             EV_DOCUMENT_INFO_LINEARIZED |
 705                             EV_DOCUMENT_INFO_N_PAGES |
 706                             EV_DOCUMENT_INFO_SECURITY |
 707                             EV_DOCUMENT_INFO_PAPER_SIZE |
 708                             EV_DOCUMENT_INFO_LICENSE;
 709
 710         g_object_get (PDF_DOCUMENT (document)->document,
 711                       "title", &(info->title),
 712                       "format", &(info->format),
 713                       "author", &(info->author),
 714                       "subject", &(info->subject),
 715                       "keywords", &(info->keywords),
 716                       "page-mode", &mode,
 717                       "page-layout", &layout,
 718                       "viewer-preferences", &view_prefs,
 719                       "permissions", &permissions,
 720                       "creator", &(info->creator),
 721                       "producer", &(info->producer),
 722                       "creation-date", &(info->creation_date),
 723                       "mod-date", &(info->modified_date),
 724                       "linearized", &(info->linearized),
 725                       "metadata", &metadata,
 726                       NULL);
 727
 728         if (metadata != NULL) {
 729                 pdf_document_parse_metadata (metadata, info);
 730                 g_free (metadata);
 731         }
 732
 733         info->n_pages = ev_document_get_n_pages (document);
 734
 735         if (info->n_pages > 0) {
 736                 ev_document_get_page_size (document, 0,
 737                                            &(info->paper_width),
 738                                            &(info->paper_height));
 739                 // Convert to mm.
 740                 info->paper_width = info->paper_width / 72.0f * 25.4f;
 741                 info->paper_height = info->paper_height / 72.0f * 25.4f;
 742         }
 743
 744         switch (layout) {
 745                 case POPPLER_PAGE_LAYOUT_SINGLE_PAGE:
 746                         info->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
 747                         break;
 748                 case POPPLER_PAGE_LAYOUT_ONE_COLUMN:
 749                         info->layout = EV_DOCUMENT_LAYOUT_ONE_COLUMN;
 750                         break;
 751                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_LEFT:
 752                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_LEFT;
 753                         break;
 754                 case POPPLER_PAGE_LAYOUT_TWO_COLUMN_RIGHT:
 755                         info->layout = EV_DOCUMENT_LAYOUT_TWO_COLUMN_RIGHT;
 756                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_LEFT:
 757                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_LEFT;
 758                         break;
 759                 case POPPLER_PAGE_LAYOUT_TWO_PAGE_RIGHT:
 760                         info->layout = EV_DOCUMENT_LAYOUT_TWO_PAGE_RIGHT;
 761                         break;
 762                 default:
 763                         break;
 764         }
 765
 766         switch (mode) {
 767                 case POPPLER_PAGE_MODE_NONE:
 768                         info->mode = EV_DOCUMENT_MODE_NONE;
 769                         break;
 770                 case POPPLER_PAGE_MODE_USE_THUMBS:
 771                         info->mode = EV_DOCUMENT_MODE_USE_THUMBS;
 772                         break;
 773                 case POPPLER_PAGE_MODE_USE_OC:
 774                         info->mode = EV_DOCUMENT_MODE_USE_OC;
 775                         break;
 776                 case POPPLER_PAGE_MODE_FULL_SCREEN:
 777                         info->mode = EV_DOCUMENT_MODE_FULL_SCREEN;
 778                         break;
 779                 case POPPLER_PAGE_MODE_USE_ATTACHMENTS:
 780                         info->mode = EV_DOCUMENT_MODE_USE_ATTACHMENTS;
 781                 default:
 782                         break;
 783         }
 784
 785         info->ui_hints = 0;
 786         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_TOOLBAR) {
 787                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_TOOLBAR;
 788         }
 789         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_MENUBAR) {
 790                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_MENUBAR;
 791         }
 792         if (view_prefs & POPPLER_VIEWER_PREFERENCES_HIDE_WINDOWUI) {
 793                 info->ui_hints |= EV_DOCUMENT_UI_HINT_HIDE_WINDOWUI;
 794         }
 795         if (view_prefs & POPPLER_VIEWER_PREFERENCES_FIT_WINDOW) {
 796                 info->ui_hints |= EV_DOCUMENT_UI_HINT_FIT_WINDOW;
 797         }
 798         if (view_prefs & POPPLER_VIEWER_PREFERENCES_CENTER_WINDOW) {
 799                 info->ui_hints |= EV_DOCUMENT_UI_HINT_CENTER_WINDOW;
 800         }
 801         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DISPLAY_DOC_TITLE) {
 802                 info->ui_hints |= EV_DOCUMENT_UI_HINT_DISPLAY_DOC_TITLE;
 803         }
 804         if (view_prefs & POPPLER_VIEWER_PREFERENCES_DIRECTION_RTL) {
 805                 info->ui_hints |=  EV_DOCUMENT_UI_HINT_DIRECTION_RTL;
 806         }
 807
 808         info->permissions = 0;
 809         if (permissions & POPPLER_PERMISSIONS_OK_TO_PRINT) {
 810                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_PRINT;
 811         }
 812         if (permissions & POPPLER_PERMISSIONS_OK_TO_MODIFY) {
 813                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_MODIFY;
 814         }
 815         if (permissions & POPPLER_PERMISSIONS_OK_TO_COPY) {
 816                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
 817         }
 818         if (permissions & POPPLER_PERMISSIONS_OK_TO_ADD_NOTES) {
 819                 info->permissions |= EV_DOCUMENT_PERMISSIONS_OK_TO_ADD_NOTES;
 820         }
 821
 822         if (ev_document_security_has_document_security (EV_DOCUMENT_SECURITY (document))) {
 823                 /* translators: this is the document security state */
 824                 info->security = g_strdup (_("Yes"));
 825         } else {
 826                 /* translators: this is the document security state */
 827                 info->security = g_strdup (_("No"));
 828         }
 829
 830         return info;
 831 }
 832
 833 static void
 834 pdf_document_class_init (PdfDocumentClass *klass)
 835 {
 836         GObjectClass    *g_object_class = G_OBJECT_CLASS (klass);
 837         EvDocumentClass *ev_document_class = EV_DOCUMENT_CLASS (klass);
 838
 839         g_object_class->dispose = pdf_document_dispose;
 840
 841         ev_document_class->save = pdf_document_save;
 842         ev_document_class->load = pdf_document_load;
 843         ev_document_class->get_n_pages = pdf_document_get_n_pages;
 844         ev_document_class->get_page = pdf_document_get_page;
 845         ev_document_class->get_page_size = pdf_document_get_page_size;
 846         ev_document_class->get_page_label = pdf_document_get_page_label;
 847         ev_document_class->render = pdf_document_render;
 848         ev_document_class->get_info = pdf_document_get_info;
 849 }
 850
 851 /* EvDocumentSecurity */
 852 static gboolean
 853 pdf_document_has_document_security (EvDocumentSecurity *document_security)
 854 {
 855         /* FIXME: do we really need to have this? */
 856         return FALSE;
 857 }
 858
 859 static void
 860 pdf_document_set_password (EvDocumentSecurity *document_security,
 861                            const char         *password)
 862 {
 863         PdfDocument *document = PDF_DOCUMENT (document_security);
 864
 865         if (document->password)
 866                 g_free (document->password);
 867
 868         document->password = g_strdup (password);
 869 }
 870
 871 static void
 872 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
 873 {
 874         iface->has_document_security = pdf_document_has_document_security;
 875         iface->set_password = pdf_document_set_password;
 876 }
 877
 878 static gdouble
 879 pdf_document_fonts_get_progress (EvDocumentFonts *document_fonts)
 880 {
 881         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 882         int n_pages;
 883
 884         n_pages = pdf_document_get_n_pages (EV_DOCUMENT (pdf_document));
 885
 886         return (double)pdf_document->fonts_scanned_pages / (double)n_pages;
 887 }
 888
 889 static gboolean
 890 pdf_document_fonts_scan (EvDocumentFonts *document_fonts,
 891                          int              n_pages)
 892 {
 893         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 894         gboolean result;
 895
 896         g_return_val_if_fail (PDF_IS_DOCUMENT (document_fonts), FALSE);
 897
 898         if (pdf_document->font_info == NULL) {
 899                 pdf_document->font_info = poppler_font_info_new (pdf_document->document);
 900         }
 901
 902         if (pdf_document->fonts_iter) {
 903                 poppler_fonts_iter_free (pdf_document->fonts_iter);
 904         }
 905
 906         pdf_document->fonts_scanned_pages += n_pages;
 907
 908         result = poppler_font_info_scan (pdf_document->font_info, n_pages,
 909                                          &pdf_document->fonts_iter);
 910         if (!result) {
 911                 pdf_document->fonts_scanned_pages = 0;
 912                 poppler_font_info_free (pdf_document->font_info);
 913                 pdf_document->font_info = NULL;
 914         }
 915
 916         return result;
 917 }
 918
 919 static const char *
 920 font_type_to_string (PopplerFontType type)
 921 {
 922         switch (type) {
 923                 case POPPLER_FONT_TYPE_TYPE1:
 924                         return _("Type 1");
 925                 case POPPLER_FONT_TYPE_TYPE1C:
 926                         return _("Type 1C");
 927                 case POPPLER_FONT_TYPE_TYPE3:
 928                         return _("Type 3");
 929                 case POPPLER_FONT_TYPE_TRUETYPE:
 930                         return _("TrueType");
 931                 case POPPLER_FONT_TYPE_CID_TYPE0:
 932                         return _("Type 1 (CID)");
 933                 case POPPLER_FONT_TYPE_CID_TYPE0C:
 934                         return _("Type 1C (CID)");
 935                 case POPPLER_FONT_TYPE_CID_TYPE2:
 936                         return _("TrueType (CID)");
 937                 default:
 938                         return _("Unknown font type");
 939         }
 940 }
 941
 942 static void
 943 pdf_document_fonts_fill_model (EvDocumentFonts *document_fonts,
 944                                GtkTreeModel    *model)
 945 {
 946         PdfDocument *pdf_document = PDF_DOCUMENT (document_fonts);
 947         PopplerFontsIter *iter = pdf_document->fonts_iter;
 948
 949         g_return_if_fail (PDF_IS_DOCUMENT (document_fonts));
 950
 951         if (!iter)
 952                 return;
 953
 954         do {
 955                 GtkTreeIter list_iter;
 956                 const char *name;
 957                 const char *type;
 958                 const char *embedded;
 959                 char *details;
 960
 961                 name = poppler_fonts_iter_get_name (iter);
 962
 963                 if (name == NULL) {
 964                         name = _("No name");
 965                 }
 966
 967                 type = font_type_to_string (
 968                         poppler_fonts_iter_get_font_type (iter));
 969
 970                 if (poppler_fonts_iter_is_embedded (iter)) {
 971                         if (poppler_fonts_iter_is_subset (iter))
 972                                 embedded = _("Embedded subset");
 973                         else
 974                                 embedded = _("Embedded");
 975                 } else {
 976                         embedded = _("Not embedded");
 977                 }
 978
 979                 details = g_markup_printf_escaped ("%s\n%s", type, embedded);
 980
 981                 gtk_list_store_append (GTK_LIST_STORE (model), &list_iter);
 982                 gtk_list_store_set (GTK_LIST_STORE (model), &list_iter,
 983                                     EV_DOCUMENT_FONTS_COLUMN_NAME, name,
 984                                     EV_DOCUMENT_FONTS_COLUMN_DETAILS, details,
 985                                     -1);
 986
 987                 g_free (details);
 988         } while (poppler_fonts_iter_next (iter));
 989 }
 990
 991 static void
 992 pdf_document_document_fonts_iface_init (EvDocumentFontsIface *iface)
 993 {
 994         iface->fill_model = pdf_document_fonts_fill_model;
 995         iface->scan = pdf_document_fonts_scan;
 996         iface->get_progress = pdf_document_fonts_get_progress;
 997 }
 998
 999 static gboolean
1000 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
1001 {
1002         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1003         PopplerIndexIter *iter;
1004
1005         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
1006
1007         iter = poppler_index_iter_new (pdf_document->document);
1008         if (iter == NULL)
1009                 return FALSE;
1010         poppler_index_iter_free (iter);
1011
1012         return TRUE;
1013 }
1014
1015 static EvLinkDest *
1016 ev_link_dest_from_dest (PdfDocument *pdf_document,
1017                         PopplerDest *dest)
1018 {
1019         EvLinkDest *ev_dest = NULL;
1020         const char *unimplemented_dest = NULL;
1021
1022         g_assert (dest != NULL);
1023
1024         switch (dest->type) {
1025                 case POPPLER_DEST_XYZ: {
1026                         PopplerPage *poppler_page;
1027                         double height;
1028
1029                         poppler_page = poppler_document_get_page (pdf_document->document,
1030                                                                   MAX (0, dest->page_num - 1));
1031                         poppler_page_get_size (poppler_page, NULL, &height);
1032                         ev_dest = ev_link_dest_new_xyz (dest->page_num - 1,
1033                                                         dest->left,
1034                                                         height - MIN (height, dest->top),
1035                                                         dest->zoom,
1036                                                         dest->change_left,
1037                                                         dest->change_top,
1038                                                         dest->change_zoom);
1039                         g_object_unref (poppler_page);
1040                 }
1041                         break;
1042                 case POPPLER_DEST_FITB:
1043                 case POPPLER_DEST_FIT:
1044                         ev_dest = ev_link_dest_new_fit (dest->page_num - 1);
1045                         break;
1046                 case POPPLER_DEST_FITBH:
1047                 case POPPLER_DEST_FITH: {
1048                         PopplerPage *poppler_page;
1049                         double height;
1050
1051                         poppler_page = poppler_document_get_page (pdf_document->document,
1052                                                                   MAX (0, dest->page_num - 1));
1053                         poppler_page_get_size (poppler_page, NULL, &height);
1054                         ev_dest = ev_link_dest_new_fith (dest->page_num - 1,
1055                                                          height - MIN (height, dest->top),
1056                                                          dest->change_top);
1057                         g_object_unref (poppler_page);
1058                 }
1059                         break;
1060                 case POPPLER_DEST_FITBV:
1061                 case POPPLER_DEST_FITV:
1062                         ev_dest = ev_link_dest_new_fitv (dest->page_num - 1,
1063                                                          dest->left,
1064                                                          dest->change_left);
1065                         break;
1066                 case POPPLER_DEST_FITR: {
1067                         PopplerPage *poppler_page;
1068                         double height;
1069
1070                         poppler_page = poppler_document_get_page (pdf_document->document,
1071                                                                   MAX (0, dest->page_num - 1));
1072                         poppler_page_get_size (poppler_page, NULL, &height);
1073                         ev_dest = ev_link_dest_new_fitr (dest->page_num - 1,
1074                                                          dest->left,
1075                                                          height - MIN (height, dest->bottom),
1076                                                          dest->right,
1077                                                          height - MIN (height, dest->top));
1078                         g_object_unref (poppler_page);
1079                 }
1080                         break;
1081                 case POPPLER_DEST_NAMED:
1082                         ev_dest = ev_link_dest_new_named (dest->named_dest);
1083                         break;
1084                 case POPPLER_DEST_UNKNOWN:
1085                         unimplemented_dest = "POPPLER_DEST_UNKNOWN";
1086                         break;
1087         }
1088
1089         if (unimplemented_dest) {
1090                 g_warning ("Unimplemented destination: %s, please post a "
1091                            "bug report in Evince bugzilla "
1092                            "(http://bugzilla.gnome.org) with a testcase.",
1093                            unimplemented_dest);
1094         }
1095
1096         if (!ev_dest)
1097                 ev_dest = ev_link_dest_new_page (dest->page_num - 1);
1098
1099         return ev_dest;
1100 }
1101
1102 static EvLink *
1103 ev_link_from_action (PdfDocument   *pdf_document,
1104                      PopplerAction *action)
1105 {
1106         EvLink       *link = NULL;
1107         EvLinkAction *ev_action = NULL;
1108         const char   *unimplemented_action = NULL;
1109
1110         switch (action->type) {
1111                 case POPPLER_ACTION_NONE:
1112                         break;
1113                 case POPPLER_ACTION_GOTO_DEST: {
1114                         EvLinkDest *dest;
1115
1116                         dest = ev_link_dest_from_dest (pdf_document, action->goto_dest.dest);
1117                         ev_action = ev_link_action_new_dest (dest);
1118                 }
1119                         break;
1120                 case POPPLER_ACTION_GOTO_REMOTE: {
1121                         EvLinkDest *dest;
1122
1123                         dest = ev_link_dest_from_dest (pdf_document, action->goto_remote.dest);
1124                         ev_action = ev_link_action_new_remote (dest,
1125                                                                action->goto_remote.file_name);
1126
1127                 }
1128                         break;
1129                 case POPPLER_ACTION_LAUNCH:
1130                         ev_action = ev_link_action_new_launch (action->launch.file_name,
1131                                                                action->launch.params);
1132                         break;
1133                 case POPPLER_ACTION_URI:
1134                         ev_action = ev_link_action_new_external_uri (action->uri.uri);
1135                         break;
1136                 case POPPLER_ACTION_NAMED:
1137                         ev_action = ev_link_action_new_named (action->named.named_dest);
1138                         break;
1139                 case POPPLER_ACTION_MOVIE:
1140                         unimplemented_action = "POPPLER_ACTION_MOVIE";
1141                         break;
1142                 case POPPLER_ACTION_UNKNOWN:
1143                         unimplemented_action = "POPPLER_ACTION_UNKNOWN";
1144         }
1145
1146         if (unimplemented_action) {
1147                 g_warning ("Unimplemented action: %s, please post a bug report "
1148                            "in Evince bugzilla (http://bugzilla.gnome.org) "
1149                            "with a testcase.", unimplemented_action);
1150         }
1151
1152         link = ev_link_new (action->any.title, ev_action);
1153
1154         return link;
1155 }
1156
1157 static void
1158 build_tree (PdfDocument      *pdf_document,
1159             GtkTreeModel     *model,
1160             GtkTreeIter      *parent,
1161             PopplerIndexIter *iter)
1162 {
1163
1164         do {
1165                 GtkTreeIter tree_iter;
1166                 PopplerIndexIter *child;
1167                 PopplerAction *action;
1168                 EvLink *link = NULL;
1169                 gboolean expand;
1170                 char *title_markup;
1171
1172                 action = poppler_index_iter_get_action (iter);
1173                 expand = poppler_index_iter_is_open (iter);
1174
1175                 if (!action)
1176                         continue;
1177
1178                 switch (action->type) {
1179                         case POPPLER_ACTION_GOTO_DEST: {
1180                                 /* For bookmarks, solve named destinations */
1181                                 if (action->goto_dest.dest->type == POPPLER_DEST_NAMED) {
1182                                         PopplerDest *dest;
1183                                         EvLinkDest *ev_dest = NULL;
1184                                         EvLinkAction *ev_action;
1185
1186                                         dest = poppler_document_find_dest (pdf_document->document,
1187                                                                            action->goto_dest.dest->named_dest);
1188                                         if (!dest) {
1189                                                 link = ev_link_from_action (pdf_document, action);
1190                                                 break;
1191                                         }
1192
1193                                         ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1194                                         poppler_dest_free (dest);
1195
1196                                         ev_action = ev_link_action_new_dest (ev_dest);
1197                                         link = ev_link_new (action->any.title, ev_action);
1198                                 } else {
1199                                         link = ev_link_from_action (pdf_document, action);
1200                                 }
1201                         }
1202                                 break;
1203                         default:
1204                                 link = ev_link_from_action (pdf_document, action);
1205                                 break;
1206                 }
1207
1208                 if (!link || strlen (ev_link_get_title (link)) <= 0) {
1209                         poppler_action_free (action);
1210                         if (link)
1211                                 g_object_unref (link);
1212
1213                         continue;
1214                 }
1215
1216                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
1217                 title_markup = g_markup_escape_text (ev_link_get_title (link), -1);
1218
1219                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
1220                                     EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
1221                                     EV_DOCUMENT_LINKS_COLUMN_LINK, link,
1222                                     EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
1223                                     -1);
1224
1225                 g_free (title_markup);
1226                 g_object_unref (link);
1227
1228                 child = poppler_index_iter_get_child (iter);
1229                 if (child)
1230                         build_tree (pdf_document, model, &tree_iter, child);
1231                 poppler_index_iter_free (child);
1232                 poppler_action_free (action);
1233
1234         } while (poppler_index_iter_next (iter));
1235 }
1236
1237 static GtkTreeModel *
1238 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
1239 {
1240         PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
1241         GtkTreeModel *model = NULL;
1242         PopplerIndexIter *iter;
1243
1244         g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
1245
1246         iter = poppler_index_iter_new (pdf_document->document);
1247         /* Create the model if we have items*/
1248         if (iter != NULL) {
1249                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
1250                                                              G_TYPE_STRING,
1251                                                              G_TYPE_OBJECT,
1252                                                              G_TYPE_BOOLEAN,
1253                                                              G_TYPE_STRING);
1254                 build_tree (pdf_document, model, NULL, iter);
1255                 poppler_index_iter_free (iter);
1256         }
1257
1258         return model;
1259 }
1260
1261 static GList *
1262 pdf_document_links_get_links (EvDocumentLinks *document_links,
1263                               EvPage          *page)
1264 {
1265         PdfDocument *pdf_document;
1266         PopplerPage *poppler_page;
1267         GList *retval = NULL;
1268         GList *mapping_list;
1269         GList *list;
1270         double height;
1271
1272         pdf_document = PDF_DOCUMENT (document_links);
1273         poppler_page = POPPLER_PAGE (page->backend_page);
1274         mapping_list = poppler_page_get_link_mapping (poppler_page);
1275         poppler_page_get_size (poppler_page, NULL, &height);
1276
1277         for (list = mapping_list; list; list = list->next) {
1278                 PopplerLinkMapping *link_mapping;
1279                 EvMapping *ev_link_mapping;
1280
1281                 link_mapping = (PopplerLinkMapping *)list->data;
1282                 ev_link_mapping = g_new (EvMapping, 1);
1283                 ev_link_mapping->data = ev_link_from_action (pdf_document,
1284                                                              link_mapping->action);
1285                 ev_link_mapping->area.x1 = link_mapping->area.x1;
1286                 ev_link_mapping->area.x2 = link_mapping->area.x2;
1287                 /* Invert this for X-style coordinates */
1288                 ev_link_mapping->area.y1 = height - link_mapping->area.y2;
1289                 ev_link_mapping->area.y2 = height - link_mapping->area.y1;
1290
1291                 retval = g_list_prepend (retval, ev_link_mapping);
1292         }
1293
1294         poppler_page_free_link_mapping (mapping_list);
1295
1296         return g_list_reverse (retval);
1297 }
1298
1299 static EvLinkDest *
1300 pdf_document_links_find_link_dest (EvDocumentLinks  *document_links,
1301                                    const gchar      *link_name)
1302 {
1303         PdfDocument *pdf_document;
1304         PopplerDest *dest;
1305         EvLinkDest *ev_dest = NULL;
1306
1307         pdf_document = PDF_DOCUMENT (document_links);
1308         dest = poppler_document_find_dest (pdf_document->document,
1309                                            link_name);
1310         if (dest) {
1311                 ev_dest = ev_link_dest_from_dest (pdf_document, dest);
1312                 poppler_dest_free (dest);
1313         }
1314
1315         return ev_dest;
1316 }
1317
1318 static void
1319 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
1320 {
1321         iface->has_document_links = pdf_document_links_has_document_links;
1322         iface->get_links_model = pdf_document_links_get_links_model;
1323         iface->get_links = pdf_document_links_get_links;
1324         iface->find_link_dest = pdf_document_links_find_link_dest;
1325 }
1326
1327 static GList *
1328 pdf_document_images_get_image_mapping (EvDocumentImages *document_images,
1329                                        EvPage           *page)
1330 {
1331         GList *retval = NULL;
1332         PdfDocument *pdf_document;
1333         PopplerPage *poppler_page;
1334         GList *mapping_list;
1335         GList *list;
1336
1337         pdf_document = PDF_DOCUMENT (document_images);
1338         poppler_page = POPPLER_PAGE (page->backend_page);
1339         mapping_list = poppler_page_get_image_mapping (poppler_page);
1340
1341         for (list = mapping_list; list; list = list->next) {
1342                 PopplerImageMapping *image_mapping;
1343                 EvMapping *ev_image_mapping;
1344
1345                 image_mapping = (PopplerImageMapping *)list->data;
1346
1347                 ev_image_mapping = g_new (EvMapping, 1);
1348
1349                 ev_image_mapping->data = ev_image_new (page->index, image_mapping->image_id);
1350                 ev_image_mapping->area.x1 = image_mapping->area.x1;
1351                 ev_image_mapping->area.y1 = image_mapping->area.y1;
1352                 ev_image_mapping->area.x2 = image_mapping->area.x2;
1353                 ev_image_mapping->area.y2 = image_mapping->area.y2;
1354
1355                 retval = g_list_prepend (retval, ev_image_mapping);
1356         }
1357
1358         poppler_page_free_image_mapping (mapping_list);
1359
1360         return g_list_reverse (retval);
1361 }
1362
1363 GdkPixbuf *
1364 pdf_document_images_get_image (EvDocumentImages *document_images,
1365                                EvImage          *image)
1366 {
1367         GdkPixbuf       *retval = NULL;
1368 #ifdef HAVE_POPPLER_PAGE_GET_IMAGE
1369         PdfDocument     *pdf_document;
1370         PopplerPage     *poppler_page;
1371         cairo_surface_t *surface;
1372
1373         pdf_document = PDF_DOCUMENT (document_images);
1374         poppler_page = poppler_document_get_page (pdf_document->document,
1375                                                   ev_image_get_page (image));
1376
1377         surface = poppler_page_get_image (poppler_page, ev_image_get_id (image));
1378         if (surface) {
1379                 retval = ev_document_misc_pixbuf_from_surface (surface);
1380                 cairo_surface_destroy (surface);
1381         }
1382
1383         g_object_unref (poppler_page);
1384 #endif
1385         return retval;
1386 }
1387
1388 static void
1389 pdf_document_document_images_iface_init (EvDocumentImagesIface *iface)
1390 {
1391         iface->get_image_mapping = pdf_document_images_get_image_mapping;
1392         iface->get_image = pdf_document_images_get_image;
1393 }
1394
1395 static GdkPixbuf *
1396 make_thumbnail_for_page (PopplerPage     *poppler_page,
1397                          EvRenderContext *rc,
1398                          gint             width,
1399                          gint             height)
1400 {
1401         GdkPixbuf *pixbuf;
1402
1403 #ifdef POPPLER_WITH_GDK
1404         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
1405                                  width, height);
1406         gdk_pixbuf_fill (pixbuf, 0xffffffff);
1407
1408         ev_document_fc_mutex_lock ();
1409         poppler_page_render_to_pixbuf (poppler_page, 0, 0,
1410                                        width, height,
1411                                        rc->scale, rc->rotation, pixbuf);
1412         ev_document_fc_mutex_unlock ();
1413 #else
1414         cairo_surface_t *surface;
1415
1416         ev_document_fc_mutex_lock ();
1417         surface = pdf_page_render (poppler_page, width, height, rc);
1418         ev_document_fc_mutex_unlock ();
1419
1420         pixbuf = ev_document_misc_pixbuf_from_surface (surface);
1421         cairo_surface_destroy (surface);
1422 #endif /* POPPLER_WITH_GDK */
1423
1424         return pixbuf;
1425 }
1426
1427 static GdkPixbuf *
1428 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1429                                        EvRenderContext      *rc,
1430                                        gboolean              border)
1431 {
1432         PdfDocument *pdf_document = PDF_DOCUMENT (document_thumbnails);
1433         PopplerPage *poppler_page;
1434         GdkPixbuf *pixbuf = NULL;
1435         GdkPixbuf *border_pixbuf;
1436         gint width, height;
1437
1438         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1439
1440         pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document),
1441                                                 rc, &width, &height);
1442
1443 #ifdef POPPLER_WITH_GDK
1444         pixbuf = poppler_page_get_thumbnail_pixbuf (poppler_page);
1445 #else
1446         cairo_surface_t *surface;
1447
1448         surface = poppler_page_get_thumbnail (poppler_page);
1449         if (surface) {
1450                 pixbuf = ev_document_misc_pixbuf_from_surface (surface);
1451                 cairo_surface_destroy (surface);
1452         }
1453 #endif /* POPPLER_WITH_GDK */
1454
1455         if (pixbuf != NULL) {
1456                 int thumb_width = (rc->rotation == 90 || rc->rotation == 270) ?
1457                         gdk_pixbuf_get_height (pixbuf) :
1458                         gdk_pixbuf_get_width (pixbuf);
1459
1460                 if (thumb_width == width) {
1461                         GdkPixbuf *rotated_pixbuf;
1462
1463                         rotated_pixbuf = gdk_pixbuf_rotate_simple (pixbuf,
1464                                                                    (GdkPixbufRotation) (360 - rc->rotation));
1465                         g_object_unref (pixbuf);
1466                         pixbuf = rotated_pixbuf;
1467                 } else {
1468                         /* The provided thumbnail has a different size */
1469                         g_object_unref (pixbuf);
1470                         pixbuf = make_thumbnail_for_page (poppler_page, rc, width, height);
1471                 }
1472         } else {
1473                 /* There is no provided thumbnail. We need to make one. */
1474                 pixbuf = make_thumbnail_for_page (poppler_page, rc, width, height);
1475         }
1476
1477         if (border && pixbuf) {
1478                 border_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
1479                 g_object_unref (pixbuf);
1480                 pixbuf = border_pixbuf;
1481         }
1482
1483         return pixbuf;
1484 }
1485
1486 static void
1487 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1488                                         EvRenderContext      *rc,
1489                                         gint                 *width,
1490                                         gint                 *height)
1491 {
1492         double page_width, page_height;
1493
1494         poppler_page_get_size (POPPLER_PAGE (rc->page->backend_page),
1495                                &page_width, &page_height);
1496
1497         *width = MAX ((gint)(page_width * rc->scale + 0.5), 1);
1498         *height = MAX ((gint)(page_height * rc->scale + 0.5), 1);
1499
1500         if (rc->rotation == 90 || rc->rotation == 270) {
1501                 gint  temp;
1502
1503                 temp = *width;
1504                 *width = *height;
1505                 *height = temp;
1506         }
1507 }
1508
1509 static void
1510 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
1511 {
1512         iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1513         iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1514 }
1515
1516
1517 static GList *
1518 pdf_document_find_find_text (EvDocumentFind *document_find,
1519                              EvPage         *page,
1520                              const gchar    *text,
1521                              gboolean        case_sensitive)
1522 {
1523         GList *matches, *l;
1524         PopplerPage *poppler_page;
1525         gdouble height;
1526
1527         g_return_val_if_fail (POPPLER_IS_PAGE (page->backend_page), NULL);
1528         g_return_val_if_fail (text != NULL, NULL);
1529
1530         poppler_page = POPPLER_PAGE (page->backend_page);
1531
1532         matches = poppler_page_find_text (poppler_page, text);
1533         if (!matches)
1534                 return NULL;
1535
1536         poppler_page_get_size (poppler_page, NULL, &height);
1537         for (l = matches; l && l->data; l = g_list_next (l)) {
1538                 PopplerRectangle *rect = (PopplerRectangle *)l->data;
1539                 gdouble           tmp;
1540
1541                 tmp = rect->y1;
1542                 rect->y1 = height - rect->y2;
1543                 rect->y2 = height - tmp;
1544         }
1545
1546         return matches;
1547 }
1548
1549 static void
1550 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1551 {
1552         iface->find_text = pdf_document_find_find_text;
1553 }
1554
1555 static void
1556 pdf_print_context_free (PdfPrintContext *ctx)
1557 {
1558         if (!ctx)
1559                 return;
1560
1561 #ifdef HAVE_CAIRO_PRINT
1562         if (ctx->cr) {
1563                 cairo_destroy (ctx->cr);
1564                 ctx->cr = NULL;
1565         }
1566 #else
1567         if (ctx->ps_file) {
1568                 poppler_ps_file_free (ctx->ps_file);
1569                 ctx->ps_file = NULL;
1570         }
1571 #endif
1572         g_free (ctx);
1573 }
1574
1575 static void
1576 pdf_document_file_exporter_begin (EvFileExporter        *exporter,
1577                                   EvFileExporterContext *fc)
1578 {
1579         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1580         PdfPrintContext *ctx;
1581 #ifdef HAVE_CAIRO_PRINT
1582         gdouble width, height;
1583         cairo_surface_t *surface = NULL;
1584 #endif
1585
1586         if (pdf_document->print_ctx)
1587                 pdf_print_context_free (pdf_document->print_ctx);
1588         pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
1589         ctx = pdf_document->print_ctx;
1590         ctx->format = fc->format;
1591
1592 #ifdef HAVE_CAIRO_PRINT
1593         ctx->pages_per_sheet = CLAMP (fc->pages_per_sheet, 1, 16);
1594
1595         ctx->paper_width = fc->paper_width;
1596         ctx->paper_height = fc->paper_height;
1597
1598         switch (fc->pages_per_sheet) {
1599                 default:
1600                 case 1:
1601                         ctx->pages_x = 1;
1602                         ctx->pages_y = 1;
1603                         break;
1604                 case 2:
1605                         ctx->pages_x = 1;
1606                         ctx->pages_y = 2;
1607                         break;
1608                 case 4:
1609                         ctx->pages_x = 2;
1610                         ctx->pages_y = 2;
1611                         break;
1612                 case 6:
1613                         ctx->pages_x = 2;
1614                         ctx->pages_y = 3;
1615                         break;
1616                 case 9:
1617                         ctx->pages_x = 3;
1618                         ctx->pages_y = 3;
1619                         break;
1620                 case 16:
1621                         ctx->pages_x = 4;
1622                         ctx->pages_y = 4;
1623                         break;
1624         }
1625
1626         ctx->pages_printed = 0;
1627
1628         switch (fc->format) {
1629                 case EV_FILE_FORMAT_PS:
1630 #ifdef HAVE_CAIRO_PS
1631                         surface = cairo_ps_surface_create (fc->filename, fc->paper_width, fc->paper_height);
1632 #endif
1633                         break;
1634                 case EV_FILE_FORMAT_PDF:
1635 #ifdef HAVE_CAIRO_PDF
1636                         surface = cairo_pdf_surface_create (fc->filename, fc->paper_width, fc->paper_height);
1637 #endif
1638                         break;
1639                 default:
1640                         g_assert_not_reached ();
1641         }
1642
1643         ctx->cr = cairo_create (surface);
1644         cairo_surface_destroy (surface);
1645
1646 #else /* HAVE_CAIRO_PRINT */
1647         if (ctx->format == EV_FILE_FORMAT_PS) {
1648                 ctx->ps_file = poppler_ps_file_new (pdf_document->document,
1649                                                     fc->filename, fc->first_page,
1650                                                     fc->last_page - fc->first_page + 1);
1651                 poppler_ps_file_set_paper_size (ctx->ps_file, fc->paper_width, fc->paper_height);
1652                 poppler_ps_file_set_duplex (ctx->ps_file, fc->duplex);
1653         }
1654 #endif /* HAVE_CAIRO_PRINT */
1655 }
1656
1657 static void
1658 pdf_document_file_exporter_begin_page (EvFileExporter *exporter)
1659 {
1660         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1661         PdfPrintContext *ctx = pdf_document->print_ctx;
1662
1663         g_return_if_fail (pdf_document->print_ctx != NULL);
1664
1665         ctx->pages_printed = 0;
1666
1667 #ifdef HAVE_CAIRO_PRINT
1668         if (ctx->paper_width > ctx->paper_height) {
1669                 if (ctx->format == EV_FILE_FORMAT_PS) {
1670                         cairo_ps_surface_set_size (cairo_get_target (ctx->cr),
1671                                                    ctx->paper_height,
1672                                                    ctx->paper_width);
1673                 } else if (ctx->format == EV_FILE_FORMAT_PDF) {
1674                         cairo_pdf_surface_set_size (cairo_get_target (ctx->cr),
1675                                                     ctx->paper_height,
1676                                                     ctx->paper_width);
1677                 }
1678         }
1679 #endif /* HAVE_CAIRO_PRINT */
1680 }
1681
1682 static void
1683 pdf_document_file_exporter_do_page (EvFileExporter  *exporter,
1684                                     EvRenderContext *rc)
1685 {
1686         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1687         PdfPrintContext *ctx = pdf_document->print_ctx;
1688         PopplerPage *poppler_page;
1689 #ifdef HAVE_CAIRO_PRINT
1690         gdouble  page_width, page_height;
1691         gint     x, y;
1692         gboolean rotate;
1693         gdouble  width, height;
1694         gdouble  pwidth, pheight;
1695         gdouble  xscale, yscale;
1696 #endif
1697
1698         g_return_if_fail (pdf_document->print_ctx != NULL);
1699
1700         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1701
1702 #ifdef HAVE_CAIRO_PRINT
1703         x = (ctx->pages_printed % ctx->pages_per_sheet) % ctx->pages_x;
1704         y = (ctx->pages_printed % ctx->pages_per_sheet) / ctx->pages_x;
1705         poppler_page_get_size (poppler_page, &page_width, &page_height);
1706
1707         if (page_width > page_height && page_width > ctx->paper_width) {
1708                 rotate = TRUE;
1709         } else {
1710                 rotate = FALSE;
1711         }
1712
1713         /* Use always portrait mode and rotate when necessary */
1714         if (ctx->paper_width > ctx->paper_height) {
1715                 width = ctx->paper_height;
1716                 height = ctx->paper_width;
1717                 rotate = !rotate;
1718         } else {
1719                 width = ctx->paper_width;
1720                 height = ctx->paper_height;
1721         }
1722
1723         if (ctx->pages_per_sheet == 2 || ctx->pages_per_sheet == 6) {
1724                 rotate = !rotate;
1725         }
1726
1727         if (rotate) {
1728                 gint tmp1;
1729                 gdouble tmp2;
1730
1731                 tmp1 = x;
1732                 x = y;
1733                 y = tmp1;
1734
1735                 tmp2 = page_width;
1736                 page_width = page_height;
1737                 page_height = tmp2;
1738         }
1739
1740         pwidth = width / ctx->pages_x;
1741         pheight = height / ctx->pages_y;
1742
1743         if ((page_width > pwidth || page_height > pheight) ||
1744             (page_width < pwidth && page_height < pheight)) {
1745                 xscale = pwidth / page_width;
1746                 yscale = pheight / page_height;
1747
1748                 if (yscale < xscale) {
1749                         xscale = yscale;
1750                 } else {
1751                         yscale = xscale;
1752                 }
1753
1754         } else {
1755                 xscale = yscale = 1;
1756         }
1757
1758         /* TODO: center */
1759
1760         cairo_save (ctx->cr);
1761         if (rotate) {
1762                 cairo_matrix_t matrix;
1763
1764                 cairo_translate (ctx->cr, (2 * y + 1) * pwidth, 0);
1765                 cairo_matrix_init (&matrix,
1766                                    0,  1,
1767                                    -1,  0,
1768                                    0,  0);
1769                 cairo_transform (ctx->cr, &matrix);
1770         }
1771
1772         cairo_translate (ctx->cr,
1773                          x * (rotate ? pheight : pwidth),
1774                          y * (rotate ? pwidth : pheight));
1775         cairo_scale (ctx->cr, xscale, yscale);
1776
1777         poppler_page_render_for_printing (poppler_page, ctx->cr);
1778
1779         ctx->pages_printed++;
1780
1781         cairo_restore (ctx->cr);
1782 #else /* HAVE_CAIRO_PRINT */
1783         if (ctx->format == EV_FILE_FORMAT_PS)
1784                 poppler_page_render_to_ps (poppler_page, ctx->ps_file);
1785 #endif /* HAVE_CAIRO_PRINT */
1786 }
1787
1788 static void
1789 pdf_document_file_exporter_end_page (EvFileExporter *exporter)
1790 {
1791         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1792         PdfPrintContext *ctx = pdf_document->print_ctx;
1793
1794         g_return_if_fail (pdf_document->print_ctx != NULL);
1795
1796 #ifdef HAVE_CAIRO_PRINT
1797         cairo_show_page (ctx->cr);
1798 #endif
1799 }
1800
1801 static void
1802 pdf_document_file_exporter_end (EvFileExporter *exporter)
1803 {
1804         PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
1805
1806         pdf_print_context_free (pdf_document->print_ctx);
1807         pdf_document->print_ctx = NULL;
1808 }
1809
1810 static EvFileExporterCapabilities
1811 pdf_document_file_exporter_get_capabilities (EvFileExporter *exporter)
1812 {
1813         return  (EvFileExporterCapabilities) (
1814                 EV_FILE_EXPORTER_CAN_PAGE_SET |
1815                 EV_FILE_EXPORTER_CAN_COPIES |
1816                 EV_FILE_EXPORTER_CAN_COLLATE |
1817                 EV_FILE_EXPORTER_CAN_REVERSE |
1818                 EV_FILE_EXPORTER_CAN_SCALE |
1819 #ifdef HAVE_CAIRO_PRINT
1820 #ifdef HAVE_POPPLER_PAGE_RENDER
1821                 EV_FILE_EXPORTER_CAN_NUMBER_UP |
1822 #endif
1823 #endif
1824
1825 #ifdef HAVE_CAIRO_PDF
1826 #ifdef HAVE_POPPLER_PAGE_RENDER
1827                 EV_FILE_EXPORTER_CAN_GENERATE_PDF |
1828 #endif
1829 #endif
1830                 EV_FILE_EXPORTER_CAN_GENERATE_PS);
1831 }
1832
1833 static void
1834 pdf_document_file_exporter_iface_init (EvFileExporterIface *iface)
1835 {
1836         iface->begin = pdf_document_file_exporter_begin;
1837         iface->begin_page = pdf_document_file_exporter_begin_page;
1838         iface->do_page = pdf_document_file_exporter_do_page;
1839         iface->end_page = pdf_document_file_exporter_end_page;
1840         iface->end = pdf_document_file_exporter_end;
1841         iface->get_capabilities = pdf_document_file_exporter_get_capabilities;
1842 }
1843
1844 #ifdef HAVE_POPPLER_PAGE_RENDER
1845 /* EvDocumentPrint */
1846 static void
1847 pdf_document_print_print_page (EvDocumentPrint *document,
1848                                EvPage          *page,
1849                                cairo_t         *cr)
1850 {
1851         PdfDocument *pdf_document = PDF_DOCUMENT (document);
1852
1853         poppler_page_render_for_printing (POPPLER_PAGE (page->backend_page), cr);
1854 }
1855
1856 static void
1857 pdf_document_document_print_iface_init (EvDocumentPrintIface *iface)
1858 {
1859         iface->print_page = pdf_document_print_print_page;
1860 }
1861 #endif /* HAVE_POPPLER_PAGE_RENDER */
1862
1863 static void
1864 pdf_selection_render_selection (EvSelection      *selection,
1865                                 EvRenderContext  *rc,
1866                                 cairo_surface_t **surface,
1867                                 EvRectangle      *points,
1868                                 EvRectangle      *old_points,
1869                                 EvSelectionStyle  style,
1870                                 GdkColor         *text,
1871                                 GdkColor         *base)
1872 {
1873         PopplerPage *poppler_page;
1874         double width_points, height_points;
1875         gint width, height;
1876
1877         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1878
1879         poppler_page_get_size (poppler_page,
1880                                &width_points, &height_points);
1881         width = (int) ((width_points * rc->scale) + 0.5);
1882         height = (int) ((height_points * rc->scale) + 0.5);
1883
1884 #ifdef HAVE_POPPLER_PAGE_RENDER
1885         cairo_t *cr;
1886         PopplerColor text_color, base_color;
1887
1888         text_color.red = text->red;
1889         text_color.green = text->green;
1890         text_color.blue = text->blue;
1891
1892         base_color.red = base->red;
1893         base_color.green = base->green;
1894         base_color.blue = base->blue;
1895
1896         if (*surface == NULL) {
1897                 *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
1898                                                        width, height);
1899
1900         }
1901
1902         cr = cairo_create (*surface);
1903         cairo_scale (cr, rc->scale, rc->scale);
1904         cairo_surface_set_device_offset (*surface, 0, 0);
1905         memset (cairo_image_surface_get_data (*surface), 0x00,
1906                 cairo_image_surface_get_height (*surface) *
1907                 cairo_image_surface_get_stride (*surface));
1908         poppler_page_render_selection (poppler_page,
1909                                        cr,
1910                                        (PopplerRectangle *)points,
1911                                        (PopplerRectangle *)old_points,
1912                                        (PopplerSelectionStyle)style,
1913                                        &text_color,
1914                                        &base_color);
1915         cairo_destroy (cr);
1916 #else /* HAVE_POPPLER_PAGE_RENDER */
1917         GdkPixbuf *pixbuf;
1918
1919         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
1920                                  TRUE, 8,
1921                                  width, height);
1922
1923         poppler_page_render_selection_to_pixbuf (poppler_page,
1924                                                  rc->scale, rc->rotation, pixbuf,
1925                                                  (PopplerRectangle *)points,
1926                                                  (PopplerRectangle *)old_points,
1927                                                  (PopplerSelectionStyle)style,
1928                                                  text,
1929                                                  base);
1930         if (*surface)
1931                 cairo_surface_destroy (*surface);
1932         *surface = ev_document_misc_surface_from_pixbuf (pixbuf);
1933         g_object_unref (pixbuf);
1934 #endif /* HAVE_POPPLER_PAGE_RENDER */
1935 }
1936
1937 static gchar *
1938 pdf_selection_get_selected_text (EvSelection     *selection,
1939                                  EvRenderContext *rc,
1940                                  EvSelectionStyle style,
1941                                  EvRectangle     *points)
1942 {
1943         PopplerPage *poppler_page;
1944         PopplerRectangle r;
1945         double height;
1946         char *retval;
1947
1948         poppler_page = POPPLER_PAGE (rc->page->backend_page);
1949
1950         poppler_page_get_size (poppler_page, NULL, &height);
1951         r.x1 = points->x1;
1952         r.y1 = height - points->y2;
1953         r.x2 = points->x2;
1954         r.y2 = height - points->y1;
1955
1956         retval = poppler_page_get_text (poppler_page,
1957                                         (PopplerSelectionStyle)style,
1958                                         &r);
1959
1960         return retval;
1961 }
1962
1963 static GdkRegion *
1964 create_gdk_region_from_poppler_region (GList *region)
1965 {
1966         GList *l;
1967         GdkRegion *retval;
1968
1969         retval = gdk_region_new ();
1970
1971         for (l = region; l; l = g_list_next (l)) {
1972                 PopplerRectangle *rectangle;
1973                 GdkRectangle      rect;
1974
1975                 rectangle = (PopplerRectangle *)l->data;
1976
1977                 rect.x = (gint) rectangle->x1;
1978                 rect.y = (gint) rectangle->y1;
1979                 rect.width  = (gint) (rectangle->x2 - rectangle->x1);
1980                 rect.height = (gint) (rectangle->y2 - rectangle->y1);
1981                 gdk_region_union_with_rect (retval, &rect);
1982
1983                 poppler_rectangle_free (rectangle);
1984         }
1985
1986         return retval;
1987 }
1988
1989 static GdkRegion *
1990 pdf_selection_get_selection_region (EvSelection     *selection,
1991                                     EvRenderContext *rc,
1992                                     EvSelectionStyle style,
1993                                     EvRectangle     *points)
1994 {
1995         PopplerPage *poppler_page;
1996         GdkRegion   *retval;
1997         GList       *region;
1998
1999         poppler_page = POPPLER_PAGE (rc->page->backend_page);
2000
2001         region = poppler_page_get_selection_region (poppler_page,
2002                                                     rc->scale,
2003                                                     (PopplerSelectionStyle)style,
2004                                                     (PopplerRectangle *) points);
2005         retval = create_gdk_region_from_poppler_region (region);
2006         g_list_free (region);
2007
2008         return retval;
2009 }
2010
2011 static GdkRegion *
2012 pdf_selection_get_selection_map (EvSelection *selection,
2013                                  EvPage      *page)
2014 {
2015         PopplerPage *poppler_page;
2016         PopplerRectangle points;
2017         GList *region;
2018         GdkRegion *retval;
2019
2020         poppler_page = POPPLER_PAGE (page->backend_page);
2021
2022         points.x1 = 0.0;
2023         points.y1 = 0.0;
2024         poppler_page_get_size (poppler_page, &(points.x2), &(points.y2));
2025
2026         region = poppler_page_get_selection_region (poppler_page, 1.0,
2027                                                     POPPLER_SELECTION_GLYPH,
2028                                                     &points);
2029         retval = create_gdk_region_from_poppler_region (region);
2030         g_list_free (region);
2031
2032         return retval;
2033 }
2034
2035 static void
2036 pdf_selection_iface_init (EvSelectionIface *iface)
2037 {
2038         iface->render_selection = pdf_selection_render_selection;
2039         iface->get_selected_text = pdf_selection_get_selected_text;
2040         iface->get_selection_region = pdf_selection_get_selection_region;
2041         iface->get_selection_map = pdf_selection_get_selection_map;
2042 }
2043
2044 /* Page Transitions */
2045 static gdouble
2046 pdf_document_get_page_duration (EvDocumentTransition *trans,
2047                                 gint                  page)
2048 {
2049         PdfDocument *pdf_document;
2050         PopplerPage *poppler_page;
2051         gdouble      duration = -1;
2052
2053         pdf_document = PDF_DOCUMENT (trans);
2054         poppler_page = poppler_document_get_page (pdf_document->document, page);
2055         if (!poppler_page)
2056                 return -1;
2057
2058         duration = poppler_page_get_duration (poppler_page);
2059         g_object_unref (poppler_page);
2060
2061         return duration;
2062 }
2063
2064 static EvTransitionEffect *
2065 pdf_document_get_effect (EvDocumentTransition *trans,
2066                          gint                  page)
2067 {
2068         PdfDocument            *pdf_document;
2069         PopplerPage            *poppler_page;
2070         PopplerPageTransition  *page_transition;
2071         EvTransitionEffect     *effect;
2072
2073         pdf_document = PDF_DOCUMENT (trans);
2074         poppler_page = poppler_document_get_page (pdf_document->document, page);
2075
2076         if (!poppler_page)
2077                 return NULL;
2078
2079         page_transition = poppler_page_get_transition (poppler_page);
2080
2081         if (!page_transition) {
2082                 g_object_unref (poppler_page);
2083                 return NULL;
2084         }
2085
2086         /* enums in PopplerPageTransition match the EvTransitionEffect ones */
2087         effect = ev_transition_effect_new ((EvTransitionEffectType) page_transition->type,
2088                                            "alignment", page_transition->alignment,
2089                                            "direction", page_transition->direction,
2090                                            "duration", page_transition->duration,
2091                                            "angle", page_transition->angle,
2092                                            "scale", page_transition->scale,
2093                                            "rectangular", page_transition->rectangular,
2094                                            NULL);
2095
2096         poppler_page_transition_free (page_transition);
2097         g_object_unref (poppler_page);
2098
2099         return effect;
2100 }
2101
2102 static void
2103 pdf_document_page_transition_iface_init (EvDocumentTransitionIface *iface)
2104 {
2105         iface->get_page_duration = pdf_document_get_page_duration;
2106         iface->get_effect = pdf_document_get_effect;
2107 }
2108
2109 /* Forms */
2110 static void
2111 pdf_document_get_crop_box (EvDocument  *document,
2112                            int          page,
2113                            EvRectangle *rect)
2114 {
2115         PdfDocument *pdf_document;
2116         PopplerPage *poppler_page;
2117         PopplerRectangle poppler_rect;
2118
2119         pdf_document = PDF_DOCUMENT (document);
2120         poppler_page = poppler_document_get_page (pdf_document->document, page);
2121         poppler_page_get_crop_box (poppler_page, &poppler_rect);
2122         rect->x1 = poppler_rect.x1;
2123         rect->x2 = poppler_rect.x2;
2124         rect->y1 = poppler_rect.y1;
2125         rect->y2 = poppler_rect.y2;
2126 }
2127
2128 static EvFormField *
2129 ev_form_field_from_poppler_field (PopplerFormField *poppler_field)
2130 {
2131         EvFormField *ev_field = NULL;
2132         gint         id;
2133         gdouble      font_size;
2134         gboolean     is_read_only;
2135
2136         id = poppler_form_field_get_id (poppler_field);
2137         font_size = poppler_form_field_get_font_size (poppler_field);
2138         is_read_only = poppler_form_field_is_read_only (poppler_field);
2139
2140         switch (poppler_form_field_get_field_type (poppler_field)) {
2141                 case POPPLER_FORM_FIELD_TEXT: {
2142                         EvFormFieldText    *field_text;
2143                         EvFormFieldTextType ev_text_type = EV_FORM_FIELD_TEXT_NORMAL;
2144
2145                         switch (poppler_form_field_text_get_text_type (poppler_field)) {
2146                                 case POPPLER_FORM_TEXT_NORMAL:
2147                                         ev_text_type = EV_FORM_FIELD_TEXT_NORMAL;
2148                                         break;
2149                                 case POPPLER_FORM_TEXT_MULTILINE:
2150                                         ev_text_type = EV_FORM_FIELD_TEXT_MULTILINE;
2151                                         break;
2152                                 case POPPLER_FORM_TEXT_FILE_SELECT:
2153                                         ev_text_type = EV_FORM_FIELD_TEXT_FILE_SELECT;
2154                                         break;
2155                         }
2156
2157                         ev_field = ev_form_field_text_new (id, ev_text_type);
2158                         field_text = EV_FORM_FIELD_TEXT (ev_field);
2159
2160                         field_text->do_spell_check = poppler_form_field_text_do_spell_check (poppler_field);
2161                         field_text->do_scroll = poppler_form_field_text_do_scroll (poppler_field);
2162                         field_text->is_rich_text = poppler_form_field_text_is_rich_text (poppler_field);
2163                         field_text->is_password = poppler_form_field_text_is_password (poppler_field);
2164                         field_text->max_len = poppler_form_field_text_get_max_len (poppler_field);
2165                         field_text->text = poppler_form_field_text_get_text (poppler_field);
2166
2167                 }
2168                         break;
2169                 case POPPLER_FORM_FIELD_BUTTON: {
2170                         EvFormFieldButton    *field_button;
2171                         EvFormFieldButtonType ev_button_type = EV_FORM_FIELD_BUTTON_PUSH;
2172
2173                         switch (poppler_form_field_button_get_button_type (poppler_field)) {
2174                                 case POPPLER_FORM_BUTTON_PUSH:
2175                                         ev_button_type = EV_FORM_FIELD_BUTTON_PUSH;
2176                                         break;
2177                                 case POPPLER_FORM_BUTTON_CHECK:
2178                                         ev_button_type = EV_FORM_FIELD_BUTTON_CHECK;
2179                                         break;
2180                                 case POPPLER_FORM_BUTTON_RADIO:
2181                                         ev_button_type = EV_FORM_FIELD_BUTTON_RADIO;
2182                                         break;
2183                         }
2184
2185                         ev_field = ev_form_field_button_new (id, ev_button_type);
2186                         field_button = EV_FORM_FIELD_BUTTON (ev_field);
2187
2188                         field_button->state = poppler_form_field_button_get_state (poppler_field);
2189                 }
2190                         break;
2191                 case POPPLER_FORM_FIELD_CHOICE: {
2192                         EvFormFieldChoice    *field_choice;
2193                         EvFormFieldChoiceType ev_choice_type = EV_FORM_FIELD_CHOICE_COMBO;
2194
2195                         switch (poppler_form_field_choice_get_choice_type (poppler_field)) {
2196                                 case POPPLER_FORM_CHOICE_COMBO:
2197                                         ev_choice_type = EV_FORM_FIELD_CHOICE_COMBO;
2198                                         break;
2199                                 case EV_FORM_FIELD_CHOICE_LIST:
2200                                         ev_choice_type = EV_FORM_FIELD_CHOICE_LIST;
2201                                         break;
2202                         }
2203
2204                         ev_field = ev_form_field_choice_new (id, ev_choice_type);
2205                         field_choice = EV_FORM_FIELD_CHOICE (ev_field);
2206
2207                         field_choice->is_editable = poppler_form_field_choice_is_editable (poppler_field);
2208                         field_choice->multi_select = poppler_form_field_choice_can_select_multiple (poppler_field);
2209                         field_choice->do_spell_check = poppler_form_field_choice_do_spell_check (poppler_field);
2210                         field_choice->commit_on_sel_change = poppler_form_field_choice_commit_on_change (poppler_field);
2211
2212                         /* TODO: we need poppler_form_field_choice_get_selected_items in poppler
2213                         field_choice->selected_items = poppler_form_field_choice_get_selected_items (poppler_field);*/
2214                         if (field_choice->is_editable)
2215                                 field_choice->text = poppler_form_field_choice_get_text (poppler_field);
2216                 }
2217                         break;
2218                 case POPPLER_FORM_FIELD_SIGNATURE:
2219                         /* TODO */
2220                         ev_field = ev_form_field_signature_new (id);
2221                         break;
2222                 case POPPLER_FORM_FIELD_UNKNOWN:
2223                         return NULL;
2224         }
2225
2226         ev_field->font_size = font_size;
2227         ev_field->is_read_only = is_read_only;
2228
2229         return ev_field;
2230 }
2231
2232 static GList *
2233 pdf_document_forms_get_form_fields (EvDocumentForms *document,
2234                                     EvPage          *page)
2235 {
2236         PopplerPage *poppler_page;
2237         GList *retval = NULL;
2238         GList *fields;
2239         GList *list;
2240         double height;
2241
2242         g_return_val_if_fail (POPPLER_IS_PAGE (page->backend_page), NULL);
2243
2244         poppler_page = POPPLER_PAGE (page->backend_page);
2245         fields = poppler_page_get_form_field_mapping (poppler_page);
2246         poppler_page_get_size (poppler_page, NULL, &height);
2247
2248         for (list = fields; list; list = list->next) {
2249                 PopplerFormFieldMapping *mapping;
2250                 EvMapping *field_mapping;
2251                 EvFormField *ev_field;
2252
2253                 mapping = (PopplerFormFieldMapping *)list->data;
2254
2255                 ev_field = ev_form_field_from_poppler_field (mapping->field);
2256                 if (!ev_field)
2257                         continue;
2258
2259                 field_mapping = g_new0 (EvMapping, 1);
2260                 field_mapping->area.x1 = mapping->area.x1;
2261                 field_mapping->area.x2 = mapping->area.x2;
2262                 field_mapping->area.y1 = height - mapping->area.y2;
2263                 field_mapping->area.y2 = height - mapping->area.y1;
2264                 field_mapping->data = ev_field;
2265                 ev_field->page = EV_PAGE (g_object_ref (page));
2266
2267                 g_object_set_data_full (G_OBJECT (ev_field),
2268                                         "poppler-field",
2269                                         g_object_ref (mapping->field),
2270                                         (GDestroyNotify) g_object_unref);
2271
2272                 retval = g_list_prepend (retval, field_mapping);
2273         }
2274
2275         poppler_page_free_form_field_mapping (fields);
2276
2277         return g_list_reverse (retval);
2278 }
2279
2280 static gchar *
2281 pdf_document_forms_form_field_text_get_text (EvDocumentForms *document,
2282                                              EvFormField     *field)
2283
2284 {
2285         PopplerFormField *poppler_field;
2286         gchar *text;
2287
2288         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2289         if (!poppler_field)
2290                 return NULL;
2291
2292         text = poppler_form_field_text_get_text (poppler_field);
2293
2294         return text;
2295 }
2296
2297 static void
2298 pdf_document_forms_form_field_text_set_text (EvDocumentForms *document,
2299                                              EvFormField     *field,
2300                                              const gchar     *text)
2301 {
2302         PopplerFormField *poppler_field;
2303
2304         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2305         if (!poppler_field)
2306                 return;
2307
2308         poppler_form_field_text_set_text (poppler_field, text);
2309         PDF_DOCUMENT (document)->modified = TRUE;
2310 }
2311
2312 static void
2313 pdf_document_forms_form_field_button_set_state (EvDocumentForms *document,
2314                                                 EvFormField     *field,
2315                                                 gboolean         state)
2316 {
2317         PopplerFormField *poppler_field;
2318
2319         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2320         if (!poppler_field)
2321                 return;
2322
2323         poppler_form_field_button_set_state (poppler_field, state);
2324         PDF_DOCUMENT (document)->modified = TRUE;
2325 }
2326
2327 static gboolean
2328 pdf_document_forms_form_field_button_get_state (EvDocumentForms *document,
2329                                                 EvFormField     *field)
2330 {
2331         PopplerFormField *poppler_field;
2332         gboolean state;
2333
2334         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2335         if (!poppler_field)
2336                 return FALSE;
2337
2338         state = poppler_form_field_button_get_state (poppler_field);
2339
2340         return state;
2341 }
2342
2343 static gchar *
2344 pdf_document_forms_form_field_choice_get_item (EvDocumentForms *document,
2345                                                EvFormField     *field,
2346                                                gint             index)
2347 {
2348         PopplerFormField *poppler_field;
2349         gchar *text;
2350
2351         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2352         if (!poppler_field)
2353                 return NULL;
2354
2355         text = poppler_form_field_choice_get_item (poppler_field, index);
2356
2357         return text;
2358 }
2359
2360 static int
2361 pdf_document_forms_form_field_choice_get_n_items (EvDocumentForms *document,
2362                                                   EvFormField     *field)
2363 {
2364         PopplerFormField *poppler_field;
2365         gint n_items;
2366
2367         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2368         if (!poppler_field)
2369                 return -1;
2370
2371         n_items = poppler_form_field_choice_get_n_items (poppler_field);
2372
2373         return n_items;
2374 }
2375
2376 static gboolean
2377 pdf_document_forms_form_field_choice_is_item_selected (EvDocumentForms *document,
2378                                                        EvFormField     *field,
2379                                                        gint             index)
2380 {
2381         PopplerFormField *poppler_field;
2382         gboolean selected;
2383
2384         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2385         if (!poppler_field)
2386                 return FALSE;
2387
2388         selected = poppler_form_field_choice_is_item_selected (poppler_field, index);
2389
2390         return selected;
2391 }
2392
2393 static void
2394 pdf_document_forms_form_field_choice_select_item (EvDocumentForms *document,
2395                                                   EvFormField     *field,
2396                                                   gint             index)
2397 {
2398         PopplerFormField *poppler_field;
2399
2400         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2401         if (!poppler_field)
2402                 return;
2403
2404         poppler_form_field_choice_select_item (poppler_field, index);
2405         PDF_DOCUMENT (document)->modified = TRUE;
2406 }
2407
2408 static void
2409 pdf_document_forms_form_field_choice_toggle_item (EvDocumentForms *document,
2410                                                   EvFormField     *field,
2411                                                   gint             index)
2412 {
2413         PopplerFormField *poppler_field;
2414
2415         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2416         if (!poppler_field)
2417                 return;
2418
2419         poppler_form_field_choice_toggle_item (poppler_field, index);
2420         PDF_DOCUMENT (document)->modified = TRUE;
2421 }
2422
2423 static void
2424 pdf_document_forms_form_field_choice_unselect_all (EvDocumentForms *document,
2425                                                    EvFormField     *field)
2426 {
2427         PopplerFormField *poppler_field;
2428
2429         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2430         if (!poppler_field)
2431                 return;
2432
2433         poppler_form_field_choice_unselect_all (poppler_field);
2434         PDF_DOCUMENT (document)->modified = TRUE;
2435 }
2436
2437 static void
2438 pdf_document_forms_form_field_choice_set_text (EvDocumentForms *document,
2439                                                EvFormField     *field,
2440                                                const gchar     *text)
2441 {
2442         PopplerFormField *poppler_field;
2443
2444         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2445         if (!poppler_field)
2446                 return;
2447
2448         poppler_form_field_choice_set_text (poppler_field, text);
2449         PDF_DOCUMENT (document)->modified = TRUE;
2450 }
2451
2452 static gchar *
2453 pdf_document_forms_form_field_choice_get_text (EvDocumentForms *document,
2454                                                EvFormField     *field)
2455 {
2456         PopplerFormField *poppler_field;
2457         gchar *text;
2458
2459         poppler_field = POPPLER_FORM_FIELD (g_object_get_data (G_OBJECT (field), "poppler-field"));
2460         if (!poppler_field)
2461                 return NULL;
2462
2463         text = poppler_form_field_choice_get_text (poppler_field);
2464
2465         return text;
2466 }
2467
2468 static void
2469 pdf_document_document_forms_iface_init (EvDocumentFormsIface *iface)
2470 {
2471         iface->get_form_fields = pdf_document_forms_get_form_fields;
2472         iface->form_field_text_get_text = pdf_document_forms_form_field_text_get_text;
2473         iface->form_field_text_set_text = pdf_document_forms_form_field_text_set_text;
2474         iface->form_field_button_set_state = pdf_document_forms_form_field_button_set_state;
2475         iface->form_field_button_get_state = pdf_document_forms_form_field_button_get_state;
2476         iface->form_field_choice_get_item = pdf_document_forms_form_field_choice_get_item;
2477         iface->form_field_choice_get_n_items = pdf_document_forms_form_field_choice_get_n_items;
2478         iface->form_field_choice_is_item_selected = pdf_document_forms_form_field_choice_is_item_selected;
2479         iface->form_field_choice_select_item = pdf_document_forms_form_field_choice_select_item;
2480         iface->form_field_choice_toggle_item = pdf_document_forms_form_field_choice_toggle_item;
2481         iface->form_field_choice_unselect_all = pdf_document_forms_form_field_choice_unselect_all;
2482         iface->form_field_choice_set_text = pdf_document_forms_form_field_choice_set_text;
2483         iface->form_field_choice_get_text = pdf_document_forms_form_field_choice_get_text;
2484 }
2485
2486 /* Annotations */
2487 static void
2488 poppler_annot_color_to_gdk_color (PopplerAnnot *poppler_annot,
2489                                   GdkColor     *color)
2490 {
2491         PopplerColor *poppler_color;
2492
2493         poppler_color = poppler_annot_get_color (poppler_annot);
2494         if (poppler_color) {
2495                 color->red = poppler_color->red;
2496                 color->green = poppler_color->green;
2497                 color->blue = poppler_color->blue;
2498
2499                 g_free (poppler_color);
2500         } /* TODO: else use a default color */
2501 }
2502
2503 static EvAnnotation *
2504 ev_annot_from_poppler_annot (PopplerAnnot *poppler_annot,
2505                              EvPage       *page)
2506 {
2507         EvAnnotation *ev_annot = NULL;
2508         const gchar  *unimplemented_annot = NULL;
2509
2510         switch (poppler_annot_get_annot_type (poppler_annot)) {
2511                 case POPPLER_ANNOT_TEXT: {
2512                         PopplerAnnotText *poppler_text;
2513                         EvAnnotationText *ev_annot_text;
2514
2515                         poppler_text = POPPLER_ANNOT_TEXT (poppler_annot);
2516
2517                         ev_annot = ev_annotation_text_new (page);
2518
2519                         ev_annot_text = EV_ANNOTATION_TEXT (ev_annot);
2520                         ev_annot_text->is_open = poppler_annot_text_get_is_open (poppler_text);
2521                 }
2522                         break;
2523 #ifdef HAVE_POPPLER_ANNOT_FILE_ATTACHMENT_GET_ATTACHMENT
2524                 case POPPLER_ANNOT_FILE_ATTACHMENT: {
2525                         PopplerAnnotFileAttachment *poppler_annot_attachment;
2526                         EvAnnotationAttachment     *ev_annot_attachment;
2527                         PopplerAttachment          *poppler_attachment;
2528                         gchar                      *data = NULL;
2529                         gsize                       size;
2530                         GError                     *error = NULL;
2531
2532                         poppler_annot_attachment = POPPLER_ANNOT_FILE_ATTACHMENT (poppler_annot);
2533                         poppler_attachment = poppler_annot_file_attachment_get_attachment (poppler_annot_attachment);
2534
2535                         if (poppler_attachment &&
2536                             attachment_save_to_buffer (poppler_attachment, &data, &size, &error)) {
2537                                 EvAttachment *ev_attachment;
2538
2539                                 ev_attachment = ev_attachment_new (poppler_attachment->name,
2540                                                                    poppler_attachment->description,
2541                                                                    poppler_attachment->mtime,
2542                                                                    poppler_attachment->ctime,
2543                                                                    size, data);
2544                                 ev_annot = ev_annotation_attachment_new (page, ev_attachment);
2545                                 g_object_unref (ev_attachment);
2546                         } else if (error) {
2547                                 g_warning ("%s", error->message);
2548                                 g_error_free (error);
2549                         }
2550
2551                         if (poppler_attachment)
2552                                 g_object_unref (poppler_attachment);
2553                 }
2554                         break;
2555 #endif /* HAVE_POPPLER_ANNOT_FILE_ATTACHMENT_GET_ATTACHMENT */
2556                 case POPPLER_ANNOT_LINK:
2557                 case POPPLER_ANNOT_WIDGET:
2558                         /* Ignore link and widgets annots since they are already handled */
2559                         break;
2560                 default: {
2561                         GEnumValue *enum_value;
2562
2563                         enum_value = g_enum_get_value ((GEnumClass *) g_type_class_ref (POPPLER_TYPE_ANNOT_TYPE),
2564                                                        poppler_annot_get_annot_type (poppler_annot));
2565                         unimplemented_annot = enum_value ? enum_value->value_name : "Unknown annotation";
2566                 }
2567         }
2568
2569         if (unimplemented_annot) {
2570                 g_warning ("Unimplemented annotation: %s, please post a "
2571                            "bug report in Evince bugzilla "
2572                            "(http://bugzilla.gnome.org) with a testcase.",
2573                            unimplemented_annot);
2574         }
2575
2576         if (ev_annot) {
2577                 ev_annot->contents = poppler_annot_get_contents (poppler_annot);
2578                 ev_annot->name = poppler_annot_get_name (poppler_annot);
2579                 ev_annot->modified = poppler_annot_get_modified (poppler_annot);
2580                 poppler_annot_color_to_gdk_color (poppler_annot, &ev_annot->color);
2581
2582                 if (POPPLER_IS_ANNOT_MARKUP (poppler_annot)) {
2583                         PopplerAnnotMarkup *markup;
2584                         gchar *label;
2585                         gdouble opacity;
2586                         PopplerRectangle poppler_rect;
2587
2588                         markup = POPPLER_ANNOT_MARKUP (poppler_annot);
2589
2590                         if (poppler_annot_markup_get_popup_rectangle (markup, &poppler_rect)) {
2591                                 EvRectangle ev_rect;
2592                                 gboolean is_open;
2593                                 gdouble height;
2594
2595                                 poppler_page_get_size (POPPLER_PAGE (page->backend_page),
2596                                                        NULL, &height);
2597                                 ev_rect.x1 = poppler_rect.x1;
2598                                 ev_rect.x2 = poppler_rect.x2;
2599                                 ev_rect.y1 = height - poppler_rect.y2;
2600                                 ev_rect.y2 = height - poppler_rect.y1;
2601
2602                                 is_open = poppler_annot_markup_get_popup_is_open (markup);
2603
2604                                 g_object_set (ev_annot,
2605                                               "rectangle", &ev_rect,
2606                                               "is_open", is_open,
2607                                               "has_popup", TRUE,
2608                                               NULL);
2609                         } else {
2610                                 /* FIXME: Use poppler_annot_markup_has_popup() when
2611                                  * new poppler is released.
2612                                  */
2613                                 g_object_set (ev_annot,
2614                                               "has_popup", FALSE,
2615                                               NULL);
2616                         }
2617
2618                         label = poppler_annot_markup_get_label (markup);
2619                         opacity = poppler_annot_markup_get_opacity (markup);
2620
2621                         g_object_set (ev_annot,
2622                                       "label", label,
2623                                       "opacity", opacity,
2624                                       NULL);
2625
2626                         g_free (label);
2627                 }
2628         }
2629
2630         return ev_annot;
2631 }
2632
2633 static GList *
2634 pdf_document_annotations_get_annotations (EvDocumentAnnotations *document_annotations,
2635                                           EvPage                *page)
2636 {
2637         GList *retval = NULL;
2638         PdfDocument *pdf_document;
2639         PopplerPage *poppler_page;
2640         GList *annots;
2641         GList *list;
2642         gdouble height;
2643         gint i = 0;
2644
2645         pdf_document = PDF_DOCUMENT (document_annotations);
2646         poppler_page = POPPLER_PAGE (page->backend_page);
2647         annots = poppler_page_get_annot_mapping (poppler_page);
2648         poppler_page_get_size (poppler_page, NULL, &height);
2649
2650         for (list = annots; list; list = list->next) {
2651                 PopplerAnnotMapping *mapping;
2652                 EvMapping *annot_mapping;
2653                 EvAnnotation        *ev_annot;
2654
2655                 mapping = (PopplerAnnotMapping *)list->data;
2656
2657                 ev_annot = ev_annot_from_poppler_annot (mapping->annot, page);
2658                 if (!ev_annot)
2659                         continue;
2660
2661                 i++;
2662
2663                 /* Make sure annot has a unique name */
2664                 if (!ev_annot->name)
2665                         ev_annot->name = g_strdup_printf ("annot-%d-%d", page->index, i);
2666
2667                 annot_mapping = g_new (EvMapping, 1);
2668                 annot_mapping->area.x1 = mapping->area.x1;
2669                 annot_mapping->area.x2 = mapping->area.x2;
2670                 annot_mapping->area.y1 = height - mapping->area.y2;
2671                 annot_mapping->area.y2 = height - mapping->area.y1;
2672                 annot_mapping->data = ev_annot;
2673
2674                 g_object_set_data_full (G_OBJECT (ev_annot),
2675                                         "poppler-annot",
2676                                         g_object_ref (mapping->annot),
2677                                         (GDestroyNotify) g_object_unref);
2678
2679                 retval = g_list_prepend (retval, annot_mapping);
2680         }
2681
2682         poppler_page_free_annot_mapping (annots);
2683
2684         return g_list_reverse (retval);
2685 }
2686
2687 static void
2688 pdf_document_annotations_annotation_set_contents (EvDocumentAnnotations *document,
2689                                                   EvAnnotation          *annot,
2690                                                   const gchar           *contents)
2691 {
2692         PopplerAnnot *poppler_annot;
2693
2694         poppler_annot = POPPLER_ANNOT (g_object_get_data (G_OBJECT (annot), "poppler-annot"));
2695         if (!poppler_annot)
2696                 return;
2697
2698         poppler_annot_set_contents (poppler_annot, contents);
2699         PDF_DOCUMENT (document)->modified = TRUE;
2700 }
2701
2702 static void
2703 pdf_document_document_annotations_iface_init (EvDocumentAnnotationsIface *iface)
2704 {
2705         iface->get_annotations = pdf_document_annotations_get_annotations;
2706         iface->annotation_set_contents = pdf_document_annotations_annotation_set_contents;
2707 }
2708
2709 /* Attachments */
2710 struct SaveToBufferData {
2711         gchar *buffer;
2712         gsize len, max;
2713 };
2714
2715 static gboolean
2716 attachment_save_to_buffer_callback (const gchar  *buf,
2717                                     gsize         count,
2718                                     gpointer      user_data,
2719                                     GError      **error)
2720 {
2721         struct SaveToBufferData *sdata = (SaveToBufferData *)user_data;
2722         gchar *new_buffer;
2723         gsize new_max;
2724
2725         if (sdata->len + count > sdata->max) {
2726                 new_max = MAX (sdata->max * 2, sdata->len + count);
2727                 new_buffer = (gchar *)g_realloc (sdata->buffer, new_max);
2728
2729                 sdata->buffer = new_buffer;
2730                 sdata->max = new_max;
2731         }
2732
2733         memcpy (sdata->buffer + sdata->len, buf, count);
2734         sdata->len += count;
2735
2736         return TRUE;
2737 }
2738
2739 static gboolean
2740 attachment_save_to_buffer (PopplerAttachment  *attachment,
2741                            gchar             **buffer,
2742                            gsize              *buffer_size,
2743                            GError            **error)
2744 {
2745         static const gint initial_max = 1024;
2746         struct SaveToBufferData sdata;
2747
2748         *buffer = NULL;
2749         *buffer_size = 0;
2750
2751         sdata.buffer = (gchar *) g_malloc (initial_max);
2752         sdata.max = initial_max;
2753         sdata.len = 0;
2754
2755         if (! poppler_attachment_save_to_callback (attachment,
2756                                                    attachment_save_to_buffer_callback,
2757                                                    &sdata,
2758                                                    error)) {
2759                 g_free (sdata.buffer);
2760                 return FALSE;
2761         }
2762
2763         *buffer = sdata.buffer;
2764         *buffer_size = sdata.len;
2765
2766         return TRUE;
2767 }
2768
2769 static GList *
2770 pdf_document_attachments_get_attachments (EvDocumentAttachments *document)
2771 {
2772         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2773         GList *attachments;
2774         GList *list;
2775         GList *retval = NULL;
2776
2777         attachments = poppler_document_get_attachments (pdf_document->document);
2778
2779         for (list = attachments; list; list = list->next) {
2780                 PopplerAttachment *attachment;
2781                 EvAttachment *ev_attachment;
2782                 gchar *data = NULL;
2783                 gsize size;
2784                 GError *error = NULL;
2785
2786                 attachment = (PopplerAttachment *) list->data;
2787
2788                 if (attachment_save_to_buffer (attachment, &data, &size, &error)) {
2789                         ev_attachment = ev_attachment_new (attachment->name,
2790                                                            attachment->description,
2791                                                            attachment->mtime,
2792                                                            attachment->ctime,
2793                                                            size, data);
2794
2795                         retval = g_list_prepend (retval, ev_attachment);
2796                 } else {
2797                         if (error) {
2798                                 g_warning ("%s", error->message);
2799                                 g_error_free (error);
2800
2801                                 g_free (data);
2802                         }
2803                 }
2804
2805                 g_object_unref (attachment);
2806         }
2807
2808         return g_list_reverse (retval);
2809 }
2810
2811 static gboolean
2812 pdf_document_attachments_has_attachments (EvDocumentAttachments *document)
2813 {
2814         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2815
2816         return poppler_document_has_attachments (pdf_document->document);
2817 }
2818
2819 static void
2820 pdf_document_document_attachments_iface_init (EvDocumentAttachmentsIface *iface)
2821 {
2822         iface->has_attachments = pdf_document_attachments_has_attachments;
2823         iface->get_attachments = pdf_document_attachments_get_attachments;
2824 }
2825
2826 /* Layers */
2827 static gboolean
2828 pdf_document_layers_has_layers (EvDocumentLayers *document)
2829 {
2830         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2831         PopplerLayersIter *iter;
2832
2833         iter = poppler_layers_iter_new (pdf_document->document);
2834         if (!iter)
2835                 return FALSE;
2836         poppler_layers_iter_free (iter);
2837
2838         return TRUE;
2839 }
2840
2841 static void
2842 build_layers_tree (PdfDocument       *pdf_document,
2843                    GtkTreeModel      *model,
2844                    GtkTreeIter       *parent,
2845                    PopplerLayersIter *iter)
2846 {
2847         do {
2848                 GtkTreeIter        tree_iter;
2849                 PopplerLayersIter *child;
2850                 PopplerLayer      *layer;
2851                 EvLayer           *ev_layer = NULL;
2852                 gboolean           visible;
2853                 gchar             *markup;
2854                 gint               rb_group = 0;
2855
2856                 layer = poppler_layers_iter_get_layer (iter);
2857                 if (layer) {
2858                         markup = g_markup_escape_text (poppler_layer_get_title (layer), -1);
2859                         visible = poppler_layer_is_visible (layer);
2860                         rb_group = poppler_layer_get_radio_button_group_id (layer);
2861                         pdf_document->layers = g_list_append (pdf_document->layers,
2862                                                               g_object_ref (layer));
2863                         ev_layer = ev_layer_new (g_list_length (pdf_document->layers) - 1,
2864                                                  poppler_layer_is_parent (layer),
2865                                                  rb_group);
2866                 } else {
2867                         gchar *title;
2868
2869                         title = poppler_layers_iter_get_title (iter);
2870                         markup = g_markup_escape_text (title, -1);
2871                         g_free (title);
2872
2873                         visible = FALSE;
2874                         layer = NULL;
2875                 }
2876
2877                 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
2878                 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
2879                                     EV_DOCUMENT_LAYERS_COLUMN_TITLE, markup,
2880                                     EV_DOCUMENT_LAYERS_COLUMN_VISIBLE, visible,
2881                                     EV_DOCUMENT_LAYERS_COLUMN_ENABLED, TRUE, /* FIXME */
2882                                     EV_DOCUMENT_LAYERS_COLUMN_SHOWTOGGLE, (layer != NULL),
2883                                     EV_DOCUMENT_LAYERS_COLUMN_RBGROUP, rb_group,
2884                                     EV_DOCUMENT_LAYERS_COLUMN_LAYER, ev_layer,
2885                                     -1);
2886                 if (ev_layer)
2887                         g_object_unref (ev_layer);
2888                 g_free (markup);
2889
2890                 child = poppler_layers_iter_get_child (iter);
2891                 if (child)
2892                         build_layers_tree (pdf_document, model, &tree_iter, child);
2893                 poppler_layers_iter_free (child);
2894         } while (poppler_layers_iter_next (iter));
2895 }
2896
2897 static GtkTreeModel *
2898 pdf_document_layers_get_layers (EvDocumentLayers *document)
2899 {
2900         GtkTreeModel *model = NULL;
2901         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2902         PopplerLayersIter *iter;
2903
2904         iter = poppler_layers_iter_new (pdf_document->document);
2905         if (iter) {
2906                 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LAYERS_N_COLUMNS,
2907                                                              G_TYPE_STRING,  /* TITLE */
2908                                                              G_TYPE_OBJECT,  /* LAYER */
2909                                                              G_TYPE_BOOLEAN, /* VISIBLE */
2910                                                              G_TYPE_BOOLEAN, /* ENABLED */
2911                                                              G_TYPE_BOOLEAN, /* SHOWTOGGLE */
2912                                                              G_TYPE_INT);    /* RBGROUP */
2913                 build_layers_tree (pdf_document, model, NULL, iter);
2914                 poppler_layers_iter_free (iter);
2915         }
2916         return model;
2917 }
2918
2919 static void
2920 pdf_document_layers_show_layer (EvDocumentLayers *document,
2921                                 EvLayer          *layer)
2922 {
2923         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2924         guint        layer_id = ev_layer_get_id (layer);
2925
2926         poppler_layer_show (POPPLER_LAYER (g_list_nth_data (pdf_document->layers, layer_id)));
2927 }
2928
2929 static void
2930 pdf_document_layers_hide_layer (EvDocumentLayers *document,
2931                                 EvLayer          *layer)
2932 {
2933         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2934         guint        layer_id = ev_layer_get_id (layer);
2935
2936         poppler_layer_hide (POPPLER_LAYER (g_list_nth_data (pdf_document->layers, layer_id)));
2937 }
2938
2939 static gboolean
2940 pdf_document_layers_layer_is_visible (EvDocumentLayers *document,
2941                                       EvLayer          *layer)
2942 {
2943         PdfDocument *pdf_document = PDF_DOCUMENT (document);
2944         guint        layer_id = ev_layer_get_id (layer);
2945
2946         return poppler_layer_is_visible (POPPLER_LAYER (g_list_nth_data (pdf_document->layers, layer_id)));
2947 }
2948
2949 static void
2950 pdf_document_document_layers_iface_init (EvDocumentLayersIface *iface)
2951 {
2952         iface->has_layers = pdf_document_layers_has_layers;
2953         iface->get_layers = pdf_document_layers_get_layers;
2954         iface->show_layer = pdf_document_layers_show_layer;
2955         iface->hide_layer = pdf_document_layers_hide_layer;
2956         iface->layer_is_visible = pdf_document_layers_layer_is_visible;
2957 }