Forgot the books module in the last commit

libprs500/books.py

@@ -0,0 +1,77 @@
+##    Copyright (C) 2006 Kovid Goyal kovid@kovidgoyal.net
+##    This program is free software; you can redistribute it and/or modify
+##    it under the terms of the GNU General Public License as published by
+##    the Free Software Foundation; either version 2 of the License, or
+##    (at your option) any later version.
+##
+##    This program is distributed in the hope that it will be useful,
+##    but WITHOUT ANY WARRANTY; without even the implied warranty of
+##    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+##    GNU General Public License for more details.
+##
+##    You should have received a copy of the GNU General Public License along
+##    with this program; if not, write to the Free Software Foundation, Inc.,
+##    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+""" This module contains the logic for dealing with XML book lists found in the reader cache """
+from xml.dom.ext import PrettyPrint as PrettyPrint
+import xml.dom.minidom as dom
+from base64 import b64decode as decode
+
+class book_metadata_field(object):
+  def __init__(self, attr, formatter=None): 
+    self.attr = attr 
+    self.formatter = formatter
+  def __get__(self, obj, typ=None):
+    """ Return a string. String may be empty if self.attr is absent """
+    return self.formatter(obj.elem.getAttribute(self.attr)) if self.formatter else obj.elem.getAttribute(self.attr).strip()
+
+class Book(object):
+    title               = book_metadata_field("title")
+    author          = book_metadata_field("author")
+    mime           = book_metadata_field("mime")
+    rpath            = book_metadata_field("path")
+    id                  = book_metadata_field("id", formatter=int)
+    size              = book_metadata_field("size", formatter=int)
+    datetime      = book_metadata_field("date", formatter=lambda x:  time.strptime(x, "%a, %d %b %Y %H:%M:%S %Z"))
+    
+    @apply
+    def thumbnail():
+      def fget(self):
+        th = self.elem.getElementsByTagName(self.prefix + "thumbnail")
+        if len(th):
+          for n in th[0].childNodes:
+            if n.nodeType == n.ELEMENT_NODE:
+              th = n
+              break
+          rc = ""
+          for node in th.childNodes:            
+            if node.nodeType == node.TEXT_NODE: rc += node.data
+          return decode(rc)
+      return property(**locals())
+          
+    @apply
+    def path():
+      def fget(self):  return self.root + self.rpath
+      return property(**locals())
+      
+    def __init__(self, node, prefix="xs1:", root="/Data/media/"):
+      self.elem = node
+      self.prefix = prefix
+      self.root = root
+        
+    def __repr__(self):      
+      return self.title + " by " + self.author+ " at " + self.path
+      
+    def __str__(self):
+      return self.__repr__()
+  
+class BookList(list):
+  def __init__(self, prefix="xs1:", root="/Data/media/", file=None):
+    list.__init__(self)
+    if file:
+      self.prefix = prefix
+      self.root = root
+      file.seek(0)
+      self.document = dom.parse(file)
+      for book in self.document.getElementsByTagName(self.prefix + "text"): self.append(Book(book, root=root, prefix=prefix))
+    self._file = file