Support for DnD of files. Fixes #164813

2005-02-09  Carlos Garcia Campos <carlosgc@gnome.org>
	* shell/ev-window.c: Support for DnD of files. Fixes #164813

diff --git a/ChangeLog b/ChangeLog
index 4676073eb1c52130745abf4a4aa9ad7dc29a3937..e3f8f3a1309ccdeb0ffee6537f66cd191bc71dd3 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2005-02-09  Carlos Garcia Campos <carlosgc@gnome.org>
+
+       * shell/ev-window.c: Support for DnD of files. Fixes #164813
+
 2005-02-09  Vincent Noel  <vnoel@cox.net>
 
        * shell/ev-window.c: (set_action_properties): Set the "Previous"

diff --git a/shell/ev-window.c b/shell/ev-window.c
index 23798bf9730da7605c5995b29966a017e915db35..fdcb26478bd7d6d0223acac8778bc2d8e0d762e4 100644 (file)
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -50,6 +50,7 @@
 #include <gtk/gtk.h>
 
 #include <libgnomevfs/gnome-vfs-mime-utils.h>
+#include <libgnomevfs/gnome-vfs-uri.h>
 #include <libgnomeprintui/gnome-print-dialog.h>
 
 #include <gconf/gconf-client.h>
@@ -107,6 +108,12 @@ struct _EvWindowPrivate {
        EvChrome chrome;
        gboolean fullscreen_mode;
 };
+
+static GtkTargetEntry ev_drop_types[] = {
+       { "text/uri-list", 0, 0 }
+};
+
+
 #define EV_WINDOW_GET_PRIVATE(object) \
        (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_WINDOW, EvWindowPrivate))
 
@@ -546,6 +553,31 @@ start_loading_document (EvWindow   *ev_window,
        return FALSE;
 }
 
+static gboolean
+is_file_supported (const gchar *mime_type)
+{
+       static char *supported_types [] = {
+               "application/pdf",
+               "application/postscript",
+               "application/x-gzpostscript",
+               "image/x-eps",
+               NULL
+       };
+       gint   i;
+       
+       g_return_val_if_fail (mime_type != NULL, FALSE);
+
+       if (mime_type_supported_by_gdk_pixbuf (mime_type))
+               return TRUE;
+       
+       for (i = 0; supported_types[i] != NULL; i++) {
+               if (g_ascii_strcasecmp (mime_type, supported_types[i]) == 0)
+                       return TRUE;
+       }
+       
+       return FALSE;
+}
+
 void
 ev_window_open (EvWindow *ev_window, const char *uri)
 {
@@ -586,6 +618,41 @@ ev_window_open (EvWindow *ev_window, const char *uri)
        g_free (mime_type);
 }
 
+static void
+ev_window_open_uri_list (EvWindow *ev_window, GList *uri_list)
+{
+       GList *list;
+       gchar *uri, *mime_type;
+       
+       g_return_if_fail (uri_list != NULL);
+       
+       list = uri_list;
+       while (list) {
+               uri = gnome_vfs_uri_to_string (list->data, GNOME_VFS_URI_HIDE_NONE);
+               mime_type = gnome_vfs_get_mime_type (uri);
+               
+               if (is_file_supported (mime_type)) {
+                       if (ev_window_is_empty (EV_WINDOW (ev_window))) {
+                               ev_window_open (ev_window, uri);
+                               
+                               gtk_widget_show (GTK_WIDGET (ev_window));
+                       } else {
+                               EvWindow *new_window;
+                               
+                               new_window = ev_application_new_window (EV_APP);
+                               ev_window_open (new_window, uri);
+                               
+                               gtk_widget_show (GTK_WIDGET (new_window));
+                       }
+               }
+
+               g_free (mime_type);
+               g_free (uri);
+
+               list = g_list_next (list);
+       }
+}
+
 static void
 ev_window_cmd_file_open (GtkAction *action, EvWindow *ev_window)
 {
@@ -1627,6 +1694,24 @@ goto_page_cb (GtkAction *action, int page_number, EvWindow *ev_window)
        }
 }
 
+static void
+drag_data_received_cb (GtkWidget *widget, GdkDragContext *context,
+                      gint x, gint y, GtkSelectionData *selection_data,
+                      guint info, guint time, gpointer gdata)
+{
+       GList    *uri_list = NULL;
+
+       uri_list = gnome_vfs_uri_list_parse ((gchar *) selection_data->data);
+
+       if (uri_list) {
+               ev_window_open_uri_list (EV_WINDOW (widget), uri_list);
+               
+               gnome_vfs_uri_list_free (uri_list);
+
+               gtk_drag_finish (context, TRUE, FALSE, time);
+       }
+}
+
 static void
 register_custom_actions (EvWindow *window, GtkActionGroup *group)
 {
@@ -1940,5 +2025,13 @@ ev_window_init (EvWindow *ev_window)
        /* Give focus to the scrolled window */
        gtk_widget_grab_focus (ev_window->priv->scrolled_window);
 
+       /* Drag and Drop */
+       gtk_drag_dest_unset (GTK_WIDGET (ev_window));
+       gtk_drag_dest_set (GTK_WIDGET (ev_window), GTK_DEST_DEFAULT_ALL, ev_drop_types,
+                          sizeof (ev_drop_types) / sizeof (ev_drop_types[0]),
+                          GDK_ACTION_COPY);
+       g_signal_connect (G_OBJECT (ev_window), "drag_data_received",
+                         G_CALLBACK (drag_data_received_cb), NULL);
+
        update_action_sensitivity (ev_window);
 }