Fix #743533 (Enhancement: Active book highlight bar to move with metadata) and when setting metadata in MOBI files automatically create an EXTH record of type 113 if not already present to enable Amazon syncing

src/calibre/ebooks/metadata/mobi.py

@@ -271,11 +271,11 @@ class MetadataUpdater(object):
         FILTER=''.join([(len(repr(chr(x)))==3) and chr(x) or '.' for x in range(256)])
         N=0; result=''
         while src:
-           s,src = src[:length],src[length:]
-           hexa = ' '.join(["%02X"%ord(x) for x in s])
-           s = s.translate(FILTER)
-           result += "%04X   %-*s   %s\n" % (N, length*3, hexa, s)
-           N+=length
+            s,src = src[:length],src[length:]
+            hexa = ' '.join(["%02X"%ord(x) for x in s])
+            s = s.translate(FILTER)
+            result += "%04X   %-*s   %s\n" % (N, length*3, hexa, s)
+            N+=length
         print result
 
     def get_pdbrecords(self):
@@ -323,6 +323,7 @@ class MetadataUpdater(object):
                                 "\tThis is a '%s' file of type '%s'" % (self.type[0:4], self.type[4:8]))
 
         recs = []
+        added_501 = False
         try:
             from calibre.ebooks.conversion.config import load_defaults
             prefs = load_defaults('mobi_output')
@@ -355,6 +356,7 @@ class MetadataUpdater(object):
             update_exth_record((105, normalize(subjects).encode(self.codec, 'replace')))
 
             if kindle_pdoc and kindle_pdoc in mi.tags:
+                added_501 = True
                 update_exth_record((501, str('PDOC')))
 
         if mi.pubdate:
@@ -370,6 +372,12 @@ class MetadataUpdater(object):
             update_exth_record((203, pack('>I', 0)))
         if self.thumbnail_record is not None:
             update_exth_record((202, pack('>I', self.thumbnail_rindex)))
+        # Add a 113 record if not present to allow Amazon syncing
+        if (113 not in self.original_exth_records and
+                self.original_exth_records.get(501, None) == 'EBOK' and
+                not added_501):
+            from uuid import uuid4
+            update_exth_record((113, str(uuid4())))
         if 503 in self.original_exth_records:
             update_exth_record((503, mi.title.encode(self.codec, 'replace')))
 

src/calibre/gui2/actions/edit_metadata.py

@@ -164,6 +164,8 @@ class EditMetadataAction(InterfaceAction):
             if d.row_delta == 0:
                 break
             current_row += d.row_delta
+            self.gui.library_view.set_current_row(current_row)
+            self.gui.library_view.scroll_to_row(current_row)
 
 
         if changed: