Show RecentFiles.py syntax highlighted
#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2004-2007 Donald N. Allingham
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# $Id: RecentFiles.py 8551 2007-06-14 05:39:03Z rshura $
# Written by Alex Roitman
#-------------------------------------------------------------------------
#
# Standard Python Modules
#
#-------------------------------------------------------------------------
import os
import time
from xml.parsers.expat import ParserCreate
try:
import fcntl
use_lock = True
except:
use_lock = False
import const
#-------------------------------------------------------------------------
#
# Constants
#
#-------------------------------------------------------------------------
GRAMPS_FILENAME = os.path.join(const.home_dir,"recent-files.xml")
MAX_GRAMPS_ITEMS = 10
#-------------------------------------------------------------------------
#
# RecentItem
#
#-------------------------------------------------------------------------
class RecentItem:
"""
Interface to a single GRAMPS recent-items item
"""
def __init__(self,p="",n="",t=0):
self.path = p
self.name = n
self.time = t
def set_path(self,val):
self.path = val
def get_path(self):
return self.path
def set_name(self,val):
self.name = val
def get_name(self):
return self.name
def set_time(self,val):
self.time = int(val)
def get_time(self):
return self.time
def __cmp__(self,other_item):
return cmp(self.time,other_item.time)
#-------------------------------------------------------------------------
#
# RecentFiles
#
#-------------------------------------------------------------------------
class RecentFiles:
"""
Interface to a RecentFiles collection
"""
def __init__(self):
gramps_parser = RecentParser()
self.gramps_recent_files = gramps_parser.get()
def add(self,item2add):
# First we need to walk the existing items to see
# if our item is already there
for item in self.gramps_recent_files:
if item.get_path() == item2add.get_path():
# Found it -- modify timestamp and add all groups
# to the item's groups
item.set_time(item2add.get_time())
return
# At this point we walked the items and not found one,
# so simply inserting a new item in the beginning
self.gramps_recent_files.insert(0,item2add)
def remove_filename(self,filename):
# First we need to walk the existing items to see
# if our item is already there
found = False
for index in range(len(self.gramps_recent_files)):
if self.gramps_recent_files[index].get_path() == filename:
# Found it -- break here and pop that item
found = True
break
if found:
self.gramps_recent_files.pop(index)
def save(self):
"""
Attempt saving into XML.
The trick is not to fail under any circumstances.
"""
try:
self.do_save()
except:
pass
def do_save(self):
"""
Saves the current GRAMPS RecentFiles collection to the associated file.
"""
xml_file = file(os.path.expanduser(GRAMPS_FILENAME),'w')
if use_lock:
fcntl.lockf(xml_file,fcntl.LOCK_EX)
xml_file.write("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n")
xml_file.write('<RecentFiles>\n')
index = 0
for item in self.gramps_recent_files:
index = index + 1
if index > MAX_GRAMPS_ITEMS:
break
xml_file.write(' <RecentItem>\n')
xml_file.write(' <Path>%s</Path>\n' % item.get_path())
xml_file.write(' <Name>%s</Name>\n' % item.get_name())
xml_file.write(' <Timestamp>%d</Timestamp>\n' % item.get_time())
xml_file.write(' </RecentItem>\n')
xml_file.write('</RecentFiles>\n')
if use_lock:
fcntl.lockf(xml_file,fcntl.LOCK_UN)
xml_file.close()
#-------------------------------------------------------------------------
#
# RecentParser
#
#-------------------------------------------------------------------------
class RecentParser:
"""
Parsing class for the RecentFiles collection.
"""
def __init__(self):
self.recent_files = []
try:
xml_file = open(os.path.expanduser(GRAMPS_FILENAME))
if use_lock:
fcntl.lockf(xml_file,fcntl.LOCK_SH)
p = ParserCreate()
p.StartElementHandler = self.startElement
p.EndElementHandler = self.endElement
p.CharacterDataHandler = self.characters
p.ParseFile(xml_file)
if use_lock:
fcntl.lockf(xml_file,fcntl.LOCK_UN)
xml_file.close()
except:
pass
def get(self):
return self.recent_files
def startElement(self,tag,attrs):
self.tlist = []
if tag == "RecentItem":
self.item = RecentItem()
def endElement(self,tag):
text = ''.join(self.tlist)
if tag == "RecentItem":
if os.path.isdir(self.item.get_path()):
self.recent_files.append(self.item)
elif tag == "Path":
self.item.set_path(text)
elif tag == "Name":
self.item.set_name(text)
elif tag == "Timestamp":
self.item.set_time(int(text))
def characters(self, data):
self.tlist.append(data)
#-------------------------------------------------------------------------
#
# Helper functions
#
#-------------------------------------------------------------------------
def recent_files(filename,name):
"""
Add an entry to both GNOME and GRAMPS recent-items storages.
"""
the_time = int(time.time())
gramps_rf = RecentFiles()
gramps_item = RecentItem(
p=filename,
n=name,
t=the_time)
gramps_rf.add(gramps_item)
gramps_rf.save()
def remove_filename(filename):
gramps_rf = RecentFiles()
gramps_rf.remove_filename(filename)
gramps_rf.save()
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