[file-roller] Revert "do not use a custom clipboard, the special mime-type is enough"

[Paolo Bacchilega <paobac src gnome org>]

commit df19186483a5e3edf2ff89cfd92c30bf85b9420f
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Oct 9 08:21:47 2016 +0200

    Revert "do not use a custom clipboard, the special mime-type is enough"
    
    This reverts commit 26765b8b30c520a48e75ff563e874f8e2feb974b.
    
    A different clipboard is actually useful for the following use case:
    
    1 open an archive in file-roller
    2 select a list of files
    3 context menu -> cut
    4 context menu -> paste
    5 the paste dialog asks the user a destination
    6 the user wants to copy and paste the destination from a selected
      text from another application
    
    the last step can't be done if a single clipboard is used, because
    copying a text to the clipboard would overwrite the clipbaord content
    that contains the files cut in step 3.

 src/fr-window.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/fr-window.c b/src/fr-window.c
index f7e3408..bb31134 100644
--- a/src/fr-window.c
+++ b/src/fr-window.c
@@ -89,7 +89,7 @@
 #define OCTET_ATOM gdk_atom_intern  ("application/octet-stream", FALSE)
 #define XFR_ATOM   gdk_atom_intern  ("XdndFileRoller0", FALSE)
 
-#define FR_CLIPBOARD GDK_SELECTION_CLIPBOARD
+#define FR_CLIPBOARD (gdk_atom_intern_static_string ("_FILE_ROLLER_SPECIAL_CLIPBOARD"))
 #define FR_SPECIAL_URI_LIST (gdk_atom_intern_static_string ("application/file-roller-uri-list"))
 
 static GtkTargetEntry clipboard_targets[] = {