From 0bb10e3f812d50f2e7b4979e803fc0b27b0968d7 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 9 Sep 2011 11:10:54 -0600
Subject: [PATCH] SONY driver: Remove comments from books sent to SONY readers
 as the reader chokes on them

---
 src/calibre/devices/interface.py     | 6 ++++++
 src/calibre/devices/prs505/driver.py | 2 ++
 src/calibre/gui2/device.py           | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/src/calibre/devices/interface.py b/src/calibre/devices/interface.py
index 7537e18db3..507a836e37 100644
--- a/src/calibre/devices/interface.py
+++ b/src/calibre/devices/interface.py
@@ -74,6 +74,12 @@ class DevicePlugin(Plugin):
     #: For example: ``frozenset(['kobo'])``
     VIRTUAL_BOOK_EXTENSIONS = frozenset([])
 
+    #: Whether to nuke comments in the copy of the book sent to the device. If
+    #: not None this should be short string that the comments will be replaced
+    #: by.
+    NUKE_COMMENTS = None
+
+
     @classmethod
     def get_gui_name(cls):
         if hasattr(cls, 'gui_name'):
diff --git a/src/calibre/devices/prs505/driver.py b/src/calibre/devices/prs505/driver.py
index 9c1dc930b8..7bff74c5f8 100644
--- a/src/calibre/devices/prs505/driver.py
+++ b/src/calibre/devices/prs505/driver.py
@@ -56,6 +56,8 @@ class PRS505(USBMS):
 
     SUPPORTS_SUB_DIRS = True
     MUST_READ_METADATA = True
+    NUKE_COMMENTS = _('Comments have been removed as the SONY reader'
+            ' chokes on them')
     SUPPORTS_USE_AUTHOR_SORT = True
     EBOOK_DIR_MAIN = 'database/media/books'
     SCAN_FROM_ROOT = False
diff --git a/src/calibre/gui2/device.py b/src/calibre/gui2/device.py
index 0a9dbaecdd..e929825245 100644
--- a/src/calibre/gui2/device.py
+++ b/src/calibre/gui2/device.py
@@ -391,6 +391,10 @@ class DeviceManager(Thread): # {{{
                                     newmi.template_to_attribute(mi, cpb)
                                 else:
                                     newmi = mi
+                                nuke_comments = getattr(self.connected_device,
+                                        'NUKE_COMMENTS', None)
+                                if nuke_comments is not None:
+                                    mi.comments = nuke_comments
                                 set_metadata(stream, newmi, stream_type=ext)
                         except:
                             if DEBUG: