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* src/RecentFiles.py: Make robust to parse/save problems.

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* src/DbPrompter.py: Support for recent-files on new db creation.


svn: r3754
This commit is contained in:
Alex Roitman
2004-11-26 07:36:23 +00:00
parent cd54e6ccf2
commit b9efaad3bd
3 changed files with 56 additions and 23 deletions
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54
src/RecentFiles.py
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@@ -87,6 +87,10 @@ class RecentItem:
def get_groups(self):
return self.groups[:]
def add_group(self,group):
if group not in self.groups:
self.groups.append(group)
#-------------------------------------------------------------------------
#
# RecentFiles
@@ -102,13 +106,31 @@ class RecentFiles:
self.recent_files = 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.recent_files:
if item.get_uri() == item2add.get_uri():
# Found it -- modify timestamp and add all groups
# to the item's groups
item.set_time(item2add.get_time())
for group in item2add.get_groups():
item.add_group(group)
return
# At this point we walked the items and not found one,
# so simply inserting a new item in the beginning
self.recent_files.insert(0,item2add)
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 RecentFiles collection to the associated file.
"""
@@ -146,33 +168,29 @@ class RecentParser:
"""
def __init__(self):
xml_file = file(os.path.expanduser(FILENAME))
fcntl.lockf(xml_file,fcntl.LOCK_SH)
self.recent_files = []
self.recent_files = None
try:
xml_file = open(os.path.expanduser(FILENAME))
fcntl.lockf(xml_file,fcntl.LOCK_SH)
p = xml.parsers.expat.ParserCreate()
p.StartElementHandler = self.startElement
p.EndElementHandler = self.endElement
p.CharacterDataHandler = self.characters
p.ParseFile(xml_file)
p = xml.parsers.expat.ParserCreate()
p.StartElementHandler = self.startElement
p.EndElementHandler = self.endElement
p.CharacterDataHandler = self.characters
p.ParseFile(xml_file)
fcntl.lockf(xml_file,fcntl.LOCK_UN)
xml_file.close()
fcntl.lockf(xml_file,fcntl.LOCK_UN)
xml_file.close()
except:
pass
def get(self):
return self.recent_files
def startElement(self,tag,attrs):
"""
Loads the dictionary when an XML tag of 'template' is found. The format
XML tag is <template title=\"name\" file=\"path\">
"""
self.tlist = []
if tag == "RecentFiles":
self.recent_files = []
elif tag == "RecentItem":
if tag == "RecentItem":
self.item = RecentItem()
elif tag == "Groups":
self.groups = []