[gtk+/wip/matthiasc/file-chooser-portal] portal: Implement OpenFiles and SaveFile

[Matthias Clasen <matthiasc src gnome org>]

commit 89aa77b797dc1d23f2927e46d22e005f64c0d402
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jun 9 21:57:49 2016 -0400

    portal: Implement OpenFiles and SaveFile
    
    This fleshes out the portal file chooser some more.

 gtk/gtkfilechoosernativeportal.c |  101 +++++++++++++++++++++++++++++++++-----
 1 files changed, 89 insertions(+), 12 deletions(-)
---
diff --git a/gtk/gtkfilechoosernativeportal.c b/gtk/gtkfilechoosernativeportal.c
index f77fac8..2454af1 100644
--- a/gtk/gtkfilechoosernativeportal.c
+++ b/gtk/gtkfilechoosernativeportal.c
@@ -87,19 +87,19 @@ filechooser_portal_data_free (FilechooserPortalData *data)
 }
 
 static void
-open_file_response (GDBusConnection  *connection,
-                    const gchar      *sender_name,
-                    const gchar      *object_path,
-                    const gchar      *interface_name,
-                    const gchar      *signal_name,
-                    GVariant         *parameters,
-                    gpointer          user_data)
+one_file_response (GDBusConnection  *connection,
+                   const gchar      *sender_name,
+                   const gchar      *object_path,
+                   const gchar      *interface_name,
+                   const gchar      *signal_name,
+                   GVariant         *parameters,
+                   gpointer          user_data)
 {
   GtkFileChooserNative *self = user_data;
   FilechooserPortalData *data = self->mode_data;
   guint32 portal_response;
   int gtk_response;
-  char *uri, *handle;;
+  char *uri, *handle;
   GVariant *response_data;
 
   g_variant_get (parameters, "(&ou&s a{sv})", &handle, &portal_response, &uri, &response_data);
@@ -132,6 +132,55 @@ open_file_response (GDBusConnection  *connection,
 }
 
 static void
+multi_file_response (GDBusConnection  *connection,
+                     const gchar      *sender_name,
+                     const gchar      *object_path,
+                     const gchar      *interface_name,
+                     const gchar      *signal_name,
+                     GVariant         *parameters,
+                     gpointer          user_data)
+{
+  GtkFileChooserNative *self = user_data;
+  FilechooserPortalData *data = self->mode_data;
+  guint32 portal_response;
+  int gtk_response;
+  char *handle;
+  char **uris;
+  int i;
+  GVariant *response_data;
+
+  g_variant_get (parameters, "(&ou^a&s a{sv})", &handle, &portal_response, &uris, &response_data);
+
+  if (data->portal_handle == NULL ||
+      strcmp (handle, data->portal_handle) != 0)
+    return;
+
+  g_slist_free_full (self->custom_files, g_object_unref);
+  self->custom_files = NULL;
+  for (i = 0; uris[i]; i++)
+    self->custom_files = g_slist_prepend (self->custom_files, g_file_new_for_uri (uris[i]));
+
+  switch (portal_response)
+    {
+    case 0:
+      gtk_response = GTK_RESPONSE_OK;
+      break;
+    case 1:
+      gtk_response = GTK_RESPONSE_CANCEL;
+      break;
+    case 2:
+    default:
+      gtk_response = GTK_RESPONSE_DELETE_EVENT;
+      break;
+    }
+
+  filechooser_portal_data_free (data);
+  self->mode_data = NULL;
+
+  _gtk_native_dialog_emit_response (GTK_NATIVE_DIALOG (self), gtk_response);
+}
+
+static void
 send_close (FilechooserPortalData *data)
 {
   GDBusMessage *message;
@@ -196,6 +245,11 @@ gtk_file_chooser_native_portal_show (GtkFileChooserNative *self)
   char *parent_window_str;
   GDBusMessage *message;
   GVariantBuilder opt_builder;
+  GtkFileChooserAction action;
+  gboolean multiple;
+  const char *method_name;
+  const char *signal_name;
+  GDBusSignalCallback signal_callback;
 
   if (g_getenv ("GTK_USE_PORTAL") == NULL)
     return FALSE;
@@ -215,10 +269,34 @@ gtk_file_chooser_native_portal_show (GtkFileChooserNative *self)
   data->self = g_object_ref (self);
   data->connection = connection;
 
+  action = gtk_file_chooser_get_action (GTK_FILE_CHOOSER (self));
+  multiple = gtk_file_chooser_get_select_multiple (GTK_FILE_CHOOSER (self));
+
+  if (action == GTK_FILE_CHOOSER_ACTION_OPEN && !multiple)
+    {
+      method_name = "OpenFile";
+      signal_name = "OpenFileResponse";
+      signal_callback = one_file_response;
+    }
+  else if (action == GTK_FILE_CHOOSER_ACTION_OPEN && multiple)
+    {
+      method_name = "OpenFiles";
+      signal_name = "OpenFilesResponse";
+      signal_callback = multi_file_response;
+    }
+  else if (action == GTK_FILE_CHOOSER_ACTION_SAVE)
+    {
+      method_name = "SaveFile";
+      signal_name = "SaveFileResponse";
+      signal_callback = one_file_response;
+    }
+  else
+    g_assert_not_reached ();
+
   message = g_dbus_message_new_method_call ("org.freedesktop.portal.Desktop",
                                             "/org/freedesktop/portal/desktop",
                                             "org.freedesktop.portal.FileChooser",
-                                            "OpenFile");
+                                            method_name);
 
   parent_window_str = NULL;
   transient_for = gtk_native_dialog_get_transient_for (GTK_NATIVE_DIALOG (self));
@@ -261,11 +339,11 @@ gtk_file_chooser_native_portal_show (GtkFileChooserNative *self)
     g_dbus_connection_signal_subscribe (data->connection,
                                         "org.freedesktop.portal.Desktop",
                                         "org.freedesktop.portal.FileChooser",
-                                        "OpenFileResponse",
+                                        signal_name,
                                         "/org/freedesktop/portal/desktop",
                                         NULL,
                                         G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
-                                        open_file_response,
+                                        signal_callback,
                                         self, NULL);
 
   g_dbus_connection_send_message_with_reply (data->connection,
@@ -277,7 +355,6 @@ gtk_file_chooser_native_portal_show (GtkFileChooserNative *self)
                                              open_file_msg_cb,
                                              data);
 
-
   self->mode_data = data;
   return TRUE;
 }