]> www.fi.muni.cz Git - evince.git/blobdiff - backend/pdf/ev-poppler.cc
Use capabilities to know which options should be offered by the print
[evince.git] / backend / pdf / ev-poppler.cc
index e3b80b450d8d93e02fc5232fe442500613c3c2d0..4b6b114e23b7b0d97b0773c9d67694fab83b442d 100644 (file)
 
 #include "config.h"
 
 
 #include "config.h"
 
+#ifdef HAVE_POPPLER_FORM_FIELD_BUTTON_GET_BUTTON_TYPE
+#define HAVE_FORMS
+#endif
+
 #include <math.h>
 #include <string.h>
 #include <gtk/gtk.h>
 #include <math.h>
 #include <string.h>
 #include <gtk/gtk.h>
@@ -40,6 +44,7 @@
 #include "ev-document-security.h"
 #include "ev-document-thumbnails.h"
 #include "ev-document-transition.h"
 #include "ev-document-security.h"
 #include "ev-document-thumbnails.h"
 #include "ev-document-transition.h"
+#include "ev-document-forms.h"
 #include "ev-selection.h"
 #include "ev-attachment.h"
 #include "ev-image.h"
 #include "ev-selection.h"
 #include "ev-attachment.h"
 #include "ev-image.h"
@@ -86,6 +91,7 @@ static void pdf_document_security_iface_init            (EvDocumentSecurityIface
 static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
 static void pdf_document_document_links_iface_init      (EvDocumentLinksIface      *iface);
 static void pdf_document_document_images_iface_init     (EvDocumentImagesIface     *iface);
 static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
 static void pdf_document_document_links_iface_init      (EvDocumentLinksIface      *iface);
 static void pdf_document_document_images_iface_init     (EvDocumentImagesIface     *iface);
+static void pdf_document_document_forms_iface_init      (EvDocumentFormsIface      *iface);
 static void pdf_document_document_fonts_iface_init      (EvDocumentFontsIface      *iface);
 static void pdf_document_find_iface_init                (EvDocumentFindIface       *iface);
 static void pdf_document_file_exporter_iface_init       (EvFileExporterIface       *iface);
 static void pdf_document_document_fonts_iface_init      (EvDocumentFontsIface      *iface);
 static void pdf_document_find_iface_init                (EvDocumentFindIface       *iface);
 static void pdf_document_file_exporter_iface_init       (EvFileExporterIface       *iface);
@@ -104,7 +110,6 @@ static EvLink     *ev_link_from_action      (PdfDocument       *pdf_document,
 static void        pdf_document_search_free (PdfDocumentSearch *search);
 static void        pdf_print_context_free   (PdfPrintContext   *ctx);
 
 static void        pdf_document_search_free (PdfDocumentSearch *search);
 static void        pdf_print_context_free   (PdfPrintContext   *ctx);
 
-
 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
                          {
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
                          {
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
@@ -117,6 +122,10 @@ G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
                                                        pdf_document_document_links_iface_init);
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_IMAGES,
                                                        pdf_document_document_images_iface_init);
                                                        pdf_document_document_links_iface_init);
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_IMAGES,
                                                        pdf_document_document_images_iface_init);
+#ifdef HAVE_FORMS
+                                G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FORMS,
+                                                       pdf_document_document_forms_iface_init);
+#endif /* HAVE_FORMS */
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
                                                        pdf_document_document_fonts_iface_init);
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FONTS,
                                                        pdf_document_document_fonts_iface_init);
                                 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
@@ -448,7 +457,7 @@ pdf_document_render (EvDocument      *document,
                width = (int) ((width_points * rc->scale) + 0.5);
                height = (int) ((height_points * rc->scale) + 0.5);
        }
                width = (int) ((width_points * rc->scale) + 0.5);
                height = (int) ((height_points * rc->scale) + 0.5);
        }
-       
+
 #ifdef HAVE_POPPLER_PAGE_RENDER
        cairo_t *cr;
        
 #ifdef HAVE_POPPLER_PAGE_RENDER
        cairo_t *cr;
        
@@ -1283,10 +1292,10 @@ pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnail
 
                poppler_page_get_size (poppler_page, &page_width, &page_height);
 
 
                poppler_page_get_size (poppler_page, &page_width, &page_height);
 
-               *width = (gint) (page_width * rc->scale);
-               *height = (gint) (page_height * rc->scale);
+               *width = (gint) MAX (page_width * rc->scale, 1);
+               *height = (gint) MAX (page_height * rc->scale, 1);
        }
        }
-
+       
        if (rc->rotation == 90 || rc->rotation == 270) {
                gint  temp;
 
        if (rc->rotation == 90 || rc->rotation == 270) {
                gint  temp;
 
@@ -1497,17 +1506,6 @@ pdf_document_find_iface_init (EvDocumentFindIface *iface)
         iface->cancel = pdf_document_find_cancel;
 }
 
         iface->cancel = pdf_document_find_cancel;
 }
 
-static const gboolean supported_formats[] = {
-       TRUE, /* EV_FILE_FORMAT_PS */
-#ifdef HAVE_CAIRO_PDF
-#ifdef HAVE_POPPLER_PAGE_RENDER
-       TRUE, /* EV_FILE_FORMAT_PDF */
-#else
-       FALSE, /* EV_FILE_FORMAT_PDF */
-#endif
-#endif
-};
-
 static void
 pdf_print_context_free (PdfPrintContext *ctx)
 {
 static void
 pdf_print_context_free (PdfPrintContext *ctx)
 {
@@ -1527,22 +1525,9 @@ pdf_print_context_free (PdfPrintContext *ctx)
        g_free (ctx);
 }
 
        g_free (ctx);
 }
 
-static gboolean
-pdf_document_file_exporter_format_supported (EvFileExporter      *exporter,
-                                            EvFileExporterFormat format)
-{
-       return supported_formats[format];
-}
-
 static void
 static void
-pdf_document_file_exporter_begin (EvFileExporter      *exporter,
-                                 EvFileExporterFormat format,
-                                 const char          *filename,
-                                 int                  first_page,
-                                 int                  last_page,
-                                 double               width,
-                                 double               height,
-                                 gboolean             duplex)
+pdf_document_file_exporter_begin (EvFileExporter        *exporter,
+                                 EvFileExporterContext *fc)
 {
        PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
        PdfPrintContext *ctx;
 {
        PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
        PdfPrintContext *ctx;
@@ -1551,22 +1536,22 @@ pdf_document_file_exporter_begin (EvFileExporter      *exporter,
                pdf_print_context_free (pdf_document->print_ctx);
        pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
        ctx = pdf_document->print_ctx;
                pdf_print_context_free (pdf_document->print_ctx);
        pdf_document->print_ctx = g_new0 (PdfPrintContext, 1);
        ctx = pdf_document->print_ctx;
-       ctx->format = format;
+       ctx->format = fc->format;
        
        
-       switch (format) {
+       switch (fc->format) {
                case EV_FILE_FORMAT_PS:
                        ctx->ps_file = poppler_ps_file_new (pdf_document->document,
                case EV_FILE_FORMAT_PS:
                        ctx->ps_file = poppler_ps_file_new (pdf_document->document,
-                                                           filename, first_page,
-                                                           last_page - first_page + 1);
-                       poppler_ps_file_set_paper_size (ctx->ps_file, width, height);
-                       poppler_ps_file_set_duplex (ctx->ps_file, duplex);
+                                                           fc->filename, fc->first_page,
+                                                           fc->last_page - fc->first_page + 1);
+                       poppler_ps_file_set_paper_size (ctx->ps_file, fc->paper_width, fc->paper_height);
+                       poppler_ps_file_set_duplex (ctx->ps_file, fc->duplex);
 
                        break;
                case EV_FILE_FORMAT_PDF: {
 #ifdef HAVE_CAIRO_PDF
                        cairo_surface_t *surface;
                        
 
                        break;
                case EV_FILE_FORMAT_PDF: {
 #ifdef HAVE_CAIRO_PDF
                        cairo_surface_t *surface;
                        
-                       surface = cairo_pdf_surface_create (filename, width, height);
+                       surface = cairo_pdf_surface_create (fc->filename, fc->paper_width, fc->paper_height);
                        ctx->pdf_cairo = cairo_create (surface);
                        cairo_surface_destroy (surface);
 #endif
                        ctx->pdf_cairo = cairo_create (surface);
                        cairo_surface_destroy (surface);
 #endif
@@ -1578,7 +1563,8 @@ pdf_document_file_exporter_begin (EvFileExporter      *exporter,
 }
 
 static void
 }
 
 static void
-pdf_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
+pdf_document_file_exporter_do_page (EvFileExporter  *exporter,
+                                   EvRenderContext *rc)
 {
        PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
        PdfPrintContext *ctx = pdf_document->print_ctx;
 {
        PdfDocument *pdf_document = PDF_DOCUMENT (exporter);
        PdfPrintContext *ctx = pdf_document->print_ctx;
@@ -1620,13 +1606,30 @@ pdf_document_file_exporter_end (EvFileExporter *exporter)
        pdf_document->print_ctx = NULL;
 }
 
        pdf_document->print_ctx = NULL;
 }
 
+static EvFileExporterCapabilities
+pdf_document_file_exporter_get_capabilities (EvFileExporter *exporter)
+{
+       return  (EvFileExporterCapabilities) (
+               EV_FILE_EXPORTER_CAN_PAGE_SET |
+               EV_FILE_EXPORTER_CAN_COPIES |
+               EV_FILE_EXPORTER_CAN_COLLATE |
+               EV_FILE_EXPORTER_CAN_REVERSE |
+               EV_FILE_EXPORTER_CAN_SCALE |
+#ifdef HAVE_CAIRO_PDF
+#ifdef HAVE_POPPLER_PAGE_RENDER
+               EV_FILE_EXPORTER_CAN_GENERATE_PDF |
+#endif
+#endif
+               EV_FILE_EXPORTER_CAN_GENERATE_PS);
+}
+
 static void
 pdf_document_file_exporter_iface_init (EvFileExporterIface *iface)
 {
 static void
 pdf_document_file_exporter_iface_init (EvFileExporterIface *iface)
 {
-       iface->format_supported = pdf_document_file_exporter_format_supported;
         iface->begin = pdf_document_file_exporter_begin;
         iface->do_page = pdf_document_file_exporter_do_page;
         iface->end = pdf_document_file_exporter_end;
         iface->begin = pdf_document_file_exporter_begin;
         iface->do_page = pdf_document_file_exporter_do_page;
         iface->end = pdf_document_file_exporter_end;
+       iface->get_capabilities = pdf_document_file_exporter_get_capabilities;
 }
 
 static void
 }
 
 static void
@@ -1775,3 +1778,393 @@ pdf_document_new (void)
 {
        return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
 }
 {
        return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));
 }
+
+/* Forms */
+static void
+pdf_document_get_crop_box (EvDocument  *document, 
+                          int          page, 
+                          EvRectangle *rect)
+{
+       PdfDocument *pdf_document;
+       PopplerPage *poppler_page;
+       PopplerRectangle poppler_rect;
+
+       pdf_document = PDF_DOCUMENT (document);
+       poppler_page = poppler_document_get_page (pdf_document->document, page);
+       poppler_page_get_crop_box (poppler_page, &poppler_rect);
+       rect->x1 = poppler_rect.x1;
+       rect->x2 = poppler_rect.x2;
+       rect->y1 = poppler_rect.y1;
+       rect->y2 = poppler_rect.y2;
+}
+
+#ifdef HAVE_FORMS
+static EvFormField *
+ev_form_field_from_poppler_field (PopplerFormField *poppler_field)
+{
+       EvFormField *ev_field = NULL;
+       gint         id;
+       gdouble      font_size;
+       gboolean     is_read_only;
+
+       id = poppler_form_field_get_id (poppler_field);
+       font_size = poppler_form_field_get_font_size (poppler_field);
+       is_read_only = poppler_form_field_is_read_only (poppler_field);
+
+       switch (poppler_form_field_get_field_type (poppler_field)) {
+               case POPPLER_FORM_FIELD_TEXT: {
+                       EvFormFieldText    *field_text;
+                       EvFormFieldTextType ev_text_type = EV_FORM_FIELD_TEXT_NORMAL;
+
+                       switch (poppler_form_field_text_get_text_type (poppler_field)) {
+                               case POPPLER_FORM_TEXT_NORMAL:
+                                       ev_text_type = EV_FORM_FIELD_TEXT_NORMAL;
+                                       break;
+                               case POPPLER_FORM_TEXT_MULTILINE:
+                                       ev_text_type = EV_FORM_FIELD_TEXT_MULTILINE;
+                                       break;
+                               case POPPLER_FORM_TEXT_FILE_SELECT:
+                                       ev_text_type = EV_FORM_FIELD_TEXT_FILE_SELECT;
+                                       break;
+                       }
+                       
+                       ev_field = ev_form_field_text_new (id, ev_text_type);
+                       field_text = EV_FORM_FIELD_TEXT (ev_field);
+
+                       field_text->do_spell_check = poppler_form_field_text_do_spell_check (poppler_field);
+                       field_text->do_scroll = poppler_form_field_text_do_scroll (poppler_field);
+                       field_text->is_rich_text = poppler_form_field_text_is_rich_text (poppler_field);
+                       field_text->is_password = poppler_form_field_text_is_password (poppler_field);
+                       
+#ifdef HAVE_POPPLER_FORM_FIELD_TEXT_GET_MAX_LEN
+                       field_text->max_len = poppler_form_field_text_get_max_len (poppler_field);
+#endif
+                       field_text->text = poppler_form_field_text_get_text (poppler_field);
+
+               }
+                       break;
+               case POPPLER_FORM_FIELD_BUTTON: {
+                       EvFormFieldButton    *field_button;
+                       EvFormFieldButtonType ev_button_type = EV_FORM_FIELD_BUTTON_PUSH;
+
+                       switch (poppler_form_field_button_get_button_type (poppler_field)) {
+                               case POPPLER_FORM_BUTTON_PUSH:
+                                       ev_button_type = EV_FORM_FIELD_BUTTON_PUSH;
+                                       break;
+                               case POPPLER_FORM_BUTTON_CHECK:
+                                       ev_button_type = EV_FORM_FIELD_BUTTON_CHECK;
+                                       break;
+                               case POPPLER_FORM_BUTTON_RADIO:
+                                       ev_button_type = EV_FORM_FIELD_BUTTON_RADIO;
+                                       break;
+                       }
+
+                       ev_field = ev_form_field_button_new (id, ev_button_type);
+                       field_button = EV_FORM_FIELD_BUTTON (ev_field);
+                       
+                       field_button->state = poppler_form_field_button_get_state (poppler_field);
+               }
+                       break;
+               case POPPLER_FORM_FIELD_CHOICE: {
+                       EvFormFieldChoice    *field_choice;
+                       EvFormFieldChoiceType ev_choice_type = EV_FORM_FIELD_CHOICE_COMBO;
+
+                       switch (poppler_form_field_choice_get_choice_type (poppler_field)) {
+                               case POPPLER_FORM_CHOICE_COMBO:
+                                       ev_choice_type = EV_FORM_FIELD_CHOICE_COMBO;
+                                       break;
+                               case EV_FORM_FIELD_CHOICE_LIST:
+                                       ev_choice_type = EV_FORM_FIELD_CHOICE_LIST;
+                                       break;
+                       }
+
+                       ev_field = ev_form_field_choice_new (id, ev_choice_type);
+                       field_choice = EV_FORM_FIELD_CHOICE (ev_field);
+
+                       field_choice->is_editable = poppler_form_field_choice_is_editable (poppler_field);
+                       field_choice->multi_select = poppler_form_field_choice_can_select_multiple (poppler_field);
+                       field_choice->do_spell_check = poppler_form_field_choice_do_spell_check (poppler_field);
+                       field_choice->commit_on_sel_change = poppler_form_field_choice_commit_on_change (poppler_field);
+
+                       /* TODO: we need poppler_form_field_choice_get_selected_items in poppler 
+                       field_choice->selected_items = poppler_form_field_choice_get_selected_items (poppler_field);*/
+                       if (field_choice->is_editable)
+                               field_choice->text = poppler_form_field_choice_get_text (poppler_field);
+               }
+                       break;
+               case POPPLER_FORM_FIELD_SIGNATURE:
+                       /* TODO */
+                       ev_field = ev_form_field_signature_new (id);
+                       break;
+               case POPPLER_FORM_FIELD_UNKNOWN:
+                       break;
+       }
+
+       ev_field->font_size = font_size;
+       ev_field->is_read_only = is_read_only;
+
+       return ev_field;
+}
+
+static GList *
+pdf_document_forms_get_form_fields (EvDocumentForms *document, 
+                                   gint             page)
+{
+       PdfDocument *pdf_document;
+       PopplerPage *poppler_page;
+       GList *retval = NULL;
+       GList *fields;
+       GList *list;
+       double height;
+       
+
+       pdf_document = PDF_DOCUMENT (document);
+       poppler_page = poppler_document_get_page (pdf_document->document, page);
+       fields = poppler_page_get_form_field_mapping (poppler_page);
+       poppler_page_get_size (poppler_page, NULL, &height);
+
+       for (list = fields; list; list = list->next) {
+               PopplerFormFieldMapping *mapping;
+               EvFormFieldMapping *field_mapping;
+               
+               mapping = (PopplerFormFieldMapping *)list->data;
+
+               field_mapping = g_new0 (EvFormFieldMapping, 1);
+               field_mapping->x1 = mapping->area.x1;
+               field_mapping->x2 = mapping->area.x2;
+               field_mapping->y1 = height - mapping->area.y2;
+               field_mapping->y2 = height - mapping->area.y1;
+               field_mapping->field = ev_form_field_from_poppler_field (mapping->field);
+               field_mapping->field->page = page;
+               
+               retval = g_list_prepend (retval, field_mapping);
+       }
+       poppler_page_free_form_field_mapping (fields);
+       g_object_unref (poppler_page);
+
+       return g_list_reverse (retval);
+}
+
+static gchar *
+pdf_document_forms_form_field_text_get_text (EvDocumentForms *document,
+                                            EvFormField     *field)
+       
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+       gchar *text;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return NULL;
+       
+       text = poppler_form_field_text_get_text (poppler_field);
+       g_object_unref (poppler_field);
+
+       return text;
+}
+
+static void
+pdf_document_forms_form_field_text_set_text (EvDocumentForms *document, 
+                                            EvFormField     *field,
+                                            const gchar     *text)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return;
+       poppler_form_field_text_set_text (poppler_field, text);
+       g_object_unref (poppler_field);
+}
+
+static void
+pdf_document_forms_form_field_button_set_state (EvDocumentForms *document, 
+                                               EvFormField     *field,
+                                               gboolean         state)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return;
+       
+       poppler_form_field_button_set_state (poppler_field, state);
+       g_object_unref (poppler_field);
+}
+
+static gboolean
+pdf_document_forms_form_field_button_get_state (EvDocumentForms *document, 
+                                               EvFormField     *field)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+       gboolean state;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return FALSE;
+
+       state = poppler_form_field_button_get_state (poppler_field);
+       g_object_unref (poppler_field);
+
+       return state;
+}
+
+static gchar *
+pdf_document_forms_form_field_choice_get_item (EvDocumentForms *document, 
+                                              EvFormField     *field,
+                                              gint             index)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+       gchar *text;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return NULL;
+
+       text = poppler_form_field_choice_get_item (poppler_field, index);
+       g_object_unref (poppler_field);
+
+       return text;
+}
+
+static int
+pdf_document_forms_form_field_choice_get_n_items (EvDocumentForms *document, 
+                                                 EvFormField     *field)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+       gint n_items;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return -1;
+       
+       n_items = poppler_form_field_choice_get_n_items (poppler_field);
+       g_object_unref (poppler_field);
+
+       return n_items;
+}
+
+static gboolean
+pdf_document_forms_form_field_choice_is_item_selected (EvDocumentForms *document, 
+                                                      EvFormField     *field,
+                                                      gint             index)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+       gboolean selected;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return FALSE;
+
+       selected = poppler_form_field_choice_is_item_selected (poppler_field, index);
+       g_object_unref (poppler_field);
+
+       return selected;
+}
+
+static void
+pdf_document_forms_form_field_choice_select_item (EvDocumentForms *document, 
+                                                 EvFormField     *field,
+                                                 gint             index)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return;
+
+       poppler_form_field_choice_select_item (poppler_field, index);
+       g_object_unref (poppler_field);
+}
+
+static void
+pdf_document_forms_form_field_choice_toggle_item (EvDocumentForms *document, 
+                                                 EvFormField     *field,
+                                                 gint             index)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return;
+
+       poppler_form_field_choice_toggle_item (poppler_field, index);
+       g_object_unref (poppler_field);
+}
+
+static void
+pdf_document_forms_form_field_choice_unselect_all (EvDocumentForms *document, 
+                                                  EvFormField     *field)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return;
+       
+       poppler_form_field_choice_unselect_all (poppler_field);
+       g_object_unref (poppler_field);
+}
+
+static void
+pdf_document_forms_form_field_choice_set_text (EvDocumentForms *document,
+                                              EvFormField     *field,
+                                              const gchar     *text)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return;
+       
+       poppler_form_field_choice_set_text (poppler_field, text);
+       g_object_unref (poppler_field);
+}
+
+static gchar *
+pdf_document_forms_form_field_choice_get_text (EvDocumentForms *document,
+                                              EvFormField     *field)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       PopplerFormField *poppler_field;
+       gchar *text;
+
+       poppler_field = poppler_document_get_form_field (pdf_document->document, field->id);
+       if (!poppler_field)
+               return NULL;
+
+       text = poppler_form_field_choice_get_text (poppler_field);
+       g_object_unref (poppler_field);
+
+       return text;
+}
+
+static void
+pdf_document_document_forms_iface_init (EvDocumentFormsIface *iface)
+{
+       iface->get_form_fields = pdf_document_forms_get_form_fields;
+       iface->form_field_text_get_text = pdf_document_forms_form_field_text_get_text;
+       iface->form_field_text_set_text = pdf_document_forms_form_field_text_set_text;
+       iface->form_field_button_set_state = pdf_document_forms_form_field_button_set_state;
+       iface->form_field_button_get_state = pdf_document_forms_form_field_button_get_state;
+       iface->form_field_choice_get_item = pdf_document_forms_form_field_choice_get_item;
+       iface->form_field_choice_get_n_items = pdf_document_forms_form_field_choice_get_n_items;
+       iface->form_field_choice_is_item_selected = pdf_document_forms_form_field_choice_is_item_selected;
+       iface->form_field_choice_select_item = pdf_document_forms_form_field_choice_select_item;
+       iface->form_field_choice_toggle_item = pdf_document_forms_form_field_choice_toggle_item;
+       iface->form_field_choice_unselect_all = pdf_document_forms_form_field_choice_unselect_all;
+       iface->form_field_choice_set_text = pdf_document_forms_form_field_choice_set_text;
+       iface->form_field_choice_get_text = pdf_document_forms_form_field_choice_get_text;
+}
+#endif /* HAVE_FORMS */