lib/ephy-dnd.c

   1 /*
   2  *  Copyright © 2000, 2001, 2002 Marco Pesenti Gritti
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; either version 2, or (at your option)
   7  *  any later version.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, write to the Free Software
  16  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  *
  18  *  $Id: ephy-dnd.c 6952 2007-03-11 19:42:02Z chpe $
  19  */
  20
  21 #include "config.h"
  22
  23 #include "ephy-dnd.h"
  24 #include "ephy-node.h"
  25
  26 #include <gtk/gtkselection.h>
  27 #include <gtk/gtktreeview.h>
  28 #include <string.h>
  29
  30 /* Encode a "_NETSCAPE_URL_" selection.
  31  * As far as I can tell, Netscape is expecting a single
  32  * URL to be returned.  I cannot discover a way to construct
  33  * a list to be returned that Netscape can understand.
  34  * GMC also fails to do this as well.
  35  */
  36 static void
  37 add_one_netscape_url (const char *url, const char *title, gpointer data)
  38 {
  39         GString *result;
  40
  41         result = (GString *) data;
  42         if (result->len == 0)
  43         {
  44                 g_string_append (result, url);
  45                 if (title)
  46                 {
  47                         g_string_append (result, "\n");
  48                         g_string_append (result, title);
  49                 }
  50         }
  51 }
  52
  53 static void
  54 add_one_uri (const char *uri, const char *title, gpointer data)
  55 {
  56         GString *result;
  57
  58         result = (GString *) data;
  59
  60         g_string_append (result, uri);
  61         g_string_append (result, "\r\n");
  62 }
  63
  64 static void
  65 add_one_topic (const char *uri, const char *title, gpointer data)
  66 {
  67         GString *result;
  68
  69         result = (GString *) data;
  70
  71         g_string_append (result, uri);
  72         g_string_append (result, "\r\n");
  73 }
  74
  75 gboolean
  76 ephy_dnd_drag_data_get (GtkWidget *widget,
  77                         GdkDragContext *context,
  78                         GtkSelectionData *selection_data,
  79                         guint32 time,
  80                         gpointer container_context,
  81                         EphyDragEachSelectedItemIterator each_selected_item_iterator)
  82 {
  83         GString *result = NULL;
  84         GdkAtom target;
  85
  86         target = selection_data->target;
  87
  88         if (target == gdk_atom_intern (EPHY_DND_URI_LIST_TYPE, FALSE) ||
  89             target == gdk_atom_intern (EPHY_DND_TEXT_TYPE, FALSE))
  90         {
  91                 result = g_string_new (NULL);
  92                 (* each_selected_item_iterator) (add_one_uri, container_context, result);
  93         }
  94         else if (target == gdk_atom_intern (EPHY_DND_URL_TYPE, FALSE))
  95         {
  96                 result = g_string_new (NULL);
  97                 (* each_selected_item_iterator) (add_one_netscape_url, container_context, result);
  98         }
  99         else if (target == gdk_atom_intern (EPHY_DND_TOPIC_TYPE, FALSE))
 100         {
 101                 result = g_string_new (NULL);
 102                 (* each_selected_item_iterator) (add_one_topic, container_context, result);
 103                 g_string_erase (result, result->len - 2, -1);
 104         }
 105         else
 106         {
 107                 g_assert_not_reached ();
 108         }
 109
 110         gtk_selection_data_set (selection_data,
 111                                 selection_data->target,
 112                                 8, (const guchar *) result->str, result->len);
 113
 114         g_string_free (result, TRUE);
 115
 116         return TRUE;
 117 }