[evince] [pdf] Add support for Attachment annotations

[Carlos Garcia Campos <carlosgc src gnome org>]

commit a4bae5a203bdaff80f3001fba17bd2e93bca4ea5
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Mon Nov 16 14:19:27 2009 +0100

    [pdf] Add support for Attachment annotations
    
    See bgo#601839

 backend/pdf/ev-poppler.cc |   54 +++++++++++++++++++++++++++++++++++++++-----
 configure.ac              |    1 +
 2 files changed, 48 insertions(+), 7 deletions(-)
---
diff --git a/backend/pdf/ev-poppler.cc b/backend/pdf/ev-poppler.cc
index 917529e..503e468 100644
--- a/backend/pdf/ev-poppler.cc
+++ b/backend/pdf/ev-poppler.cc
@@ -144,12 +144,16 @@ static void pdf_document_thumbnails_get_dimensions       (EvDocumentThumbnails
 							  gint                       *height);
 static int  pdf_document_get_n_pages			 (EvDocument                 *document);
 
-static EvLinkDest *ev_link_dest_from_dest   (PdfDocument       *pdf_document,
-					     PopplerDest       *dest);
-static EvLink     *ev_link_from_action      (PdfDocument       *pdf_document,
-					     PopplerAction     *action);
-static void        pdf_document_search_free (PdfDocumentSearch *search);
-static void        pdf_print_context_free   (PdfPrintContext   *ctx);
+static EvLinkDest *ev_link_dest_from_dest    (PdfDocument       *pdf_document,
+					      PopplerDest       *dest);
+static EvLink     *ev_link_from_action       (PdfDocument       *pdf_document,
+					      PopplerAction     *action);
+static void        pdf_document_search_free  (PdfDocumentSearch *search);
+static void        pdf_print_context_free    (PdfPrintContext   *ctx);
+static gboolean    attachment_save_to_buffer (PopplerAttachment *attachment,
+					      gchar            **buffer,
+					      gsize             *buffer_size,
+					      GError           **error);
 
 EV_BACKEND_REGISTER_WITH_CODE (PdfDocument, pdf_document,
 			 {
@@ -2507,7 +2511,7 @@ ev_annot_from_poppler_annot (PopplerAnnot *poppler_annot,
 	const gchar  *unimplemented_annot = NULL;
 
 	switch (poppler_annot_get_annot_type (poppler_annot)) {
-	        case POPPLER_ANNOT_TEXT:
+	        case POPPLER_ANNOT_TEXT: {
 			PopplerAnnotText *poppler_text;
 			EvAnnotationText *ev_annot_text;
 
@@ -2517,8 +2521,44 @@ ev_annot_from_poppler_annot (PopplerAnnot *poppler_annot,
 
 			ev_annot_text = EV_ANNOTATION_TEXT (ev_annot);
 			ev_annot_text->is_open = poppler_annot_text_get_is_open (poppler_text);
+		}
+			break;
+#ifdef HAVE_POPPLER_ANNOT_FILE_ATTACHMENT_GET_ATTACHMENT
+	        case POPPLER_ANNOT_FILE_ATTACHMENT: {
+			PopplerAnnotFileAttachment *poppler_annot_attachment;
+			EvAnnotationAttachment     *ev_annot_attachment;
+			PopplerAttachment          *poppler_attachment;
+			gchar                      *data = NULL;
+			gsize                       size;
+			GError                     *error = NULL;
+
+			poppler_annot_attachment = POPPLER_ANNOT_FILE_ATTACHMENT (poppler_annot);
+			poppler_attachment = poppler_annot_file_attachment_get_attachment (poppler_annot_attachment);
+
+			if (poppler_attachment &&
+			    attachment_save_to_buffer (poppler_attachment, &data, &size, &error)) {
+				EvAttachment *ev_attachment;
+				gchar        *name;
+
+				name = poppler_annot_file_attachment_get_name (poppler_annot_attachment);
+				ev_attachment = ev_attachment_new (name,
+								   poppler_attachment->description,
+								   poppler_attachment->mtime,
+								   poppler_attachment->ctime,
+								   size, data);
+				g_free (name);
+				ev_annot = ev_annotation_attachment_new (page, ev_attachment);
+				g_object_unref (ev_attachment);
+			} else if (error) {
+				g_warning ("%s", error->message);
+				g_error_free (error);
+			}
 
+			if (poppler_attachment)
+				g_object_unref (poppler_attachment);
+		}
 			break;
+#endif /* HAVE_POPPLER_ANNOT_FILE_ATTACHMENT_GET_ATTACHMENT */
 	        case POPPLER_ANNOT_LINK:
 	        case POPPLER_ANNOT_WIDGET:
 			/* Ignore link and widgets annots since they are already handled */
diff --git a/configure.ac b/configure.ac
index d4fd9be..a846d77 100644
--- a/configure.ac
+++ b/configure.ac
@@ -485,6 +485,7 @@ if test "x$enable_pdf" = "xyes"; then
 	    LIBS="$LIBS $POPPLER_LIBS"
 	    AC_CHECK_FUNCS(poppler_page_render)
 	    AC_CHECK_FUNCS(poppler_page_get_image)
+	    AC_CHECK_FUNCS(poppler_annot_file_attachment_get_attachment)
 	    LIBS=$evince_save_LIBS
 
 	    PKG_CHECK_MODULES(CAIRO_PDF, cairo-pdf, enable_cairo_pdf=yes, enable_cairo_pdf=no)