Changes to device editable columns to give fine-grain control over what columns can be edited.

src/calibre/devices/folder_device/driver.py

@@ -38,7 +38,7 @@ class FOLDER_DEVICE(USBMS):
 
     THUMBNAIL_HEIGHT = 68 # Height for thumbnails on device
 
-    CAN_SET_METADATA = True
+    CAN_SET_METADATA = ['title', 'authors']
     SUPPORTS_SUB_DIRS = True
 
     #: Icon for this device

src/calibre/devices/interface.py

@@ -37,7 +37,7 @@ class DevicePlugin(Plugin):
     THUMBNAIL_HEIGHT = 68
 
     #: Whether the metadata on books can be set via the GUI.
-    CAN_SET_METADATA = True
+    CAN_SET_METADATA = ['title', 'authors', 'collections']
 
     #: Path separator for paths to books on device
     path_sep = os.sep

src/calibre/devices/kobo/driver.py

@@ -30,7 +30,7 @@ class KOBO(USBMS):
 
     # Ordered list of supported formats
     FORMATS     = ['epub', 'pdf']
-    CAN_SET_METADATA = True
+    CAN_SET_METADATA = ['collections']
 
     VENDOR_ID   = [0x2237]
     PRODUCT_ID  = [0x4161]

src/calibre/devices/prs505/driver.py

@@ -27,7 +27,7 @@ class PRS505(USBMS):
 
 
     FORMATS      = ['epub', 'lrf', 'lrx', 'rtf', 'pdf', 'txt']
-    CAN_SET_METADATA = True
+    CAN_SET_METADATA = ['title', 'authors', 'collections']
 
     VENDOR_ID    = [0x054c]   #: SONY Vendor Id
     PRODUCT_ID   = [0x031e]

src/calibre/devices/usbms/driver.py

@@ -50,7 +50,7 @@ class USBMS(CLI, Device):
     book_class = Book
 
     FORMATS = []
-    CAN_SET_METADATA = False
+    CAN_SET_METADATA = []
     METADATA_CACHE = 'metadata.calibre'
 
     def get_device_information(self, end_session=True):

src/calibre/gui2/library/models.py

@@ -907,7 +907,7 @@ class DeviceBooksModel(BooksModel): # {{{
                 }
         self.marked_for_deletion = {}
         self.search_engine = OnDeviceSearch(self)
-        self.editable = True
+        self.editable = ['title', 'authors', 'collections']
         self.book_in_library = None
 
     def mark_for_deletion(self, job, rows, rows_are_ids=False):
@@ -953,11 +953,11 @@ class DeviceBooksModel(BooksModel): # {{{
         if self.map[index.row()] in self.indices_to_be_deleted():
             return Qt.ItemIsUserCheckable  # Can't figure out how to get the disabled flag in python
         flags = QAbstractTableModel.flags(self, index)
-        if index.isValid() and self.editable:
+        if index.isValid():
             cname = self.column_map[index.column()]
-            if cname in ('title', 'authors') or \
-                    (cname == 'collections' and \
-                     callable(getattr(self.db, 'supports_collections', None)) and \
+            if cname in self.editable and \
+                     cname != 'collections' or \
+                     (callable(getattr(self.db, 'supports_collections', None)) and \
                       self.db.supports_collections() and \
                       prefs['manage_device_metadata']=='manual'):
                 flags |= Qt.ItemIsEditable
@@ -1243,7 +1243,14 @@ class DeviceBooksModel(BooksModel): # {{{
     def set_editable(self, editable):
         # Cannot edit if metadata is sent on connect. Reason: changes will
         # revert to what is in the library on next connect.
-        self.editable = editable and prefs['manage_device_metadata']!='on_connect'
+        if isinstance(editable, list):
+            self.editable = editable
+        elif editable:
+            self.editable = ['title', 'authors', 'collections']
+        else:
+            self.editable = []
+        if prefs['manage_device_metadata']=='on_connect':
+            self.editable = []
 
     def set_search_restriction(self, s):
         pass