[gnome-settings-daemon] clipboard: fix incremental sending from the clipboard manager

[Cosimo Cecchi <cosimoc src gnome org>]

commit f6c9e9d098184ef6f1859a3221d6d0d51ed988e1
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Tue Jun 14 19:19:06 2011 -0400

    clipboard: fix incremental sending from the clipboard manager
    
    When the data to send from the clipboard is bigger than the maximum
    allowed X selection size, we set the property value to XA_INCR, to
    signal that the data should be sent in incremental chunks.
    Unfortunately this never worked, because the manager didn't listen to
    the property changes on the requestor window, so it didn't know when to
    start sending data.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=652609

 plugins/clipboard/gsd-clipboard-manager.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/plugins/clipboard/gsd-clipboard-manager.c b/plugins/clipboard/gsd-clipboard-manager.c
index 73d49e4..0ae9482 100644
--- a/plugins/clipboard/gsd-clipboard-manager.c
+++ b/plugins/clipboard/gsd-clipboard-manager.c
@@ -390,6 +390,12 @@ send_incrementally (GsdClipboardManager *manager,
                          data, items);
 
         if (length == 0) {
+                clipboard_manager_watch_cb (manager,
+                                            rdata->requestor,
+                                            False,
+                                            PropertyChangeMask,
+                                            NULL);
+
                 manager->priv->conversions = list_remove (manager->priv->conversions, rdata);
                 conversion_free (rdata);
         }
@@ -545,6 +551,13 @@ convert_clipboard_target (IncrConversion      *rdata,
                         gdk_error_trap_push ();
 
                         XGetWindowAttributes (manager->priv->display, rdata->requestor, &atts);
+
+                        clipboard_manager_watch_cb (manager,
+                                                    rdata->requestor,
+                                                    True,
+                                                    PropertyChangeMask,
+                                                    NULL);
+
                         XSelectInput (manager->priv->display, rdata->requestor,
                                       atts.your_event_mask | PropertyChangeMask);