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import logging
import os
from ConfigParser import ConfigParser
from ConfigParser import NoOptionError
class ActivityModule:
"""Info about an activity module. Wraps a .activity file."""
def __init__(self, name, activity_id, directory):
self._name = name
self._id = activity_id
self._directory = directory
self._show_launcher = False
def get_name(self):
"""Get the activity user visible name."""
return self._name
def get_id(self):
"""Get the activity identifier"""
return self._id
def get_directory(self):
"""Get the path to activity directory."""
return self._directory
def get_default_type(self):
"""Get the the type of the default activity service."""
return self._default_type
def set_default_type(self, default_type):
"""Set the the type of the default activity service."""
self._default_type = default_type
def get_show_launcher(self):
"""Get whether there should be a visible launcher for the activity"""
return self._show_launcher
def set_show_launcher(self, show_launcher):
"""Set whether there should be a visible launcher for the activity"""
self._show_launcher = show_launcher
class ActivityRegistry:
"""Service that tracks the available activities"""
def __init__(self):
self._activities = []
def get_activity(self, default_type):
"""Returns an activity given his default type"""
for activity in self._activities:
if activity.get_default_type() == default_type:
return activity
return None
def scan_directory(self, path):
"""Scan a directory for activities and add them to the registry."""
if os.path.isdir(path):
for f in os.listdir(path):
if f.endswith(".activity"):
self.add(os.path.join(path, f))
def add(self, path):
"""Add an activity to the registry. The path points to a .activity file."""
cp = ConfigParser()
cp.read([path])
directory = os.path.dirname(path)
try:
activity_id = cp.get('Activity', 'id')
except NoOptionError:
logging.error('%s miss the required id option' % (path))
return False
try:
name = cp.get('Activity', 'name')
except NoOptionError:
logging.error('%s miss the required name option' % (path))
return False
if cp.has_option('Activity', 'default_type'):
default_type = cp.get('Activity', 'default_type')
else:
default_type = None
module = ActivityModule(name, activity_id, directory)
self._activities.append(module)
if cp.has_option('Activity', 'show_launcher'):
module.set_show_launcher(True)
module.set_default_type(default_type)
return True
def list_activities(self):
"""Enumerate the registered activities as an ActivityModule list."""
return self._activities
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