Fix document title bugs and fallback to filename when not available.

[evince.git] / pdf / xpdf / pdf-document.cc

diff --git a/pdf/xpdf/pdf-document.cc b/pdf/xpdf/pdf-document.cc
index 24e0b36298e3fd258bff34cced8224d732ffeade..284b3710cefe5392775f2a48927a359ec498de5c 100644 (file)
--- a/pdf/xpdf/pdf-document.cc
+++ b/pdf/xpdf/pdf-document.cc
@@ -17,6 +17,8 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#include <glib/gi18n.h>
+
 #include "gpdf-g-switch.h"
 #include "pdf-document.h"
 #include "ev-ps-exporter.h"
@@ -32,6 +34,11 @@
 #include "goo/GList.h"
 #include "PSOutputDev.h"
 
+enum {
+       PROP_0,
+       PROP_TITLE
+};
+
 typedef struct
 {
        PdfDocument *document;
@@ -177,6 +184,8 @@ pdf_document_load (EvDocument  *document,
 
        pdf_document->page_valid = FALSE;
 
+       g_object_notify (G_OBJECT (pdf_document), "title");
+
        return TRUE;
 }
 
@@ -857,12 +866,101 @@ pdf_document_finalize (GObject *object)
 
 }
 
+static void
+pdf_document_set_property (GObject *object,
+                          guint prop_id,
+                          const GValue *value,
+                          GParamSpec *pspec)
+{
+       switch (prop_id)
+
+       {
+               case PROP_TITLE:
+                       /* read only */
+                       break;
+       }
+}
+
+static gboolean
+has_unicode_marker (GString *string)
+{
+       return ((string->getChar (0) & 0xff) == 0xfe &&
+               (string->getChar (1) & 0xff) == 0xff);
+}
+
+static gchar *
+pdf_info_dict_get_string (Dict *info_dict, const gchar *key) {
+       Object obj;
+       GString *value;
+       gchar *result;
+
+       g_return_val_if_fail (info_dict != NULL, NULL);
+       g_return_val_if_fail (key != NULL, NULL);
+
+       if (!info_dict->lookup ((gchar *)key, &obj)->isString ()) {
+               obj.free ();
+               return g_strdup (_("Unknown"));
+       }
+
+       value = obj.getString ();
+
+       if (has_unicode_marker (value)) {
+               result = g_convert (value->getCString () + 2,
+                                   value->getLength () - 2,
+                                   "UTF-8", "UTF-16BE", NULL, NULL, NULL);
+       } else {
+               result = g_strndup (value->getCString (), value->getLength ());
+       }
+
+       obj.free ();
+
+       return result;
+}
+
+static char *
+pdf_document_get_title (PdfDocument *pdf_document)
+{
+       char *title;
+       Object info;
+
+       pdf_document->doc->getDocInfo (&info);
+
+       if (info.isDict ()) {
+               title = pdf_info_dict_get_string (info.getDict(), "Title");
+       }
+
+       return title;
+}
+
+static void
+pdf_document_get_property (GObject *object,
+                          guint prop_id,
+                          GValue *value,
+                          GParamSpec *pspec)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (object);
+       char *title;
+
+       switch (prop_id)
+       {
+               case PROP_TITLE:
+                       title = pdf_document_get_title (pdf_document);
+                       g_value_set_string (value, title);
+                       g_free (title);
+                       break;
+       }
+}
+
 static void
 pdf_document_class_init (PdfDocumentClass *klass)
 {
        GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 
        gobject_class->finalize = pdf_document_finalize;
+       gobject_class->get_property = pdf_document_get_property;
+       gobject_class->set_property = pdf_document_set_property;
+
+       g_object_class_override_property (gobject_class, PROP_TITLE, "title");
 }
 
 static void