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# Copyright (C) 2012-2014 Aleksey Lim
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
import hashlib
from cStringIO import StringIO
from sugar_network import db, model, static, toolkit
from sugar_network.toolkit.router import Blob, ACL
class Context(db.Resource):
@db.indexed_property(prefix='T', full_text=True,
typecast=[model.CONTEXT_TYPES])
def type(self, value):
return value
@type.setter
def type(self, value):
if value and 'package' in value and 'common' not in self['layer']:
self['layer'] = tuple(self['layer']) + ('common',)
if 'artifact_icon' not in self:
for name in ('activity', 'book', 'group'):
if name not in self.type:
continue
with file(static.path('images', name + '.svg')) as f:
Context.populate_images(self, f.read())
break
return value
@db.indexed_property(slot=1, prefix='S', full_text=True, localized=True)
def title(self, value):
return value
@db.indexed_property(prefix='R', full_text=True, localized=True)
def summary(self, value):
return value
@db.indexed_property(prefix='D', full_text=True, localized=True)
def description(self, value):
return value
@db.indexed_property(prefix='H', default='', full_text=True)
def homepage(self, value):
return value
@db.indexed_property(prefix='Y', default=[], typecast=[], full_text=True)
def mime_types(self, value):
return value
@db.blob_property(mime_type='image/png')
def icon(self, value):
if value:
return value
if 'package' in self['type']:
return Blob({
'url': '/static/images/package.png',
'blob': static.path('images', 'package.png'),
'mime_type': 'image/png',
})
else:
return Blob({
'url': '/static/images/missing.png',
'blob': static.path('images', 'missing.png'),
'mime_type': 'image/png',
})
@db.blob_property(mime_type='image/svg+xml')
def artifact_icon(self, value):
if value:
return value
if 'package' in self['type']:
return Blob({
'url': '/static/images/package.svg',
'blob': static.path('images', 'package.svg'),
'mime_type': 'image/png',
})
else:
return Blob({
'url': '/static/images/missing.svg',
'blob': static.path('images', 'missing.svg'),
'mime_type': 'image/svg+xml',
})
@db.blob_property(mime_type='image/png')
def logo(self, value):
if value:
return value
if 'package' in self['type']:
return Blob({
'url': '/static/images/package-logo.png',
'blob': static.path('images', 'package-logo.png'),
'mime_type': 'image/png',
})
else:
return Blob({
'url': '/static/images/missing-logo.png',
'blob': static.path('images', 'missing-.png'),
'mime_type': 'image/png',
})
@db.indexed_property(slot=2, default=0, acl=ACL.READ | ACL.CALC)
def downloads(self, value):
return value
@db.indexed_property(slot=3, typecast=[], default=[0, 0],
sortable_serialise=lambda x: float(x[1]) / x[0] if x[0] else 0,
acl=ACL.READ | ACL.CALC)
def rating(self, value):
return value
@db.stored_property(typecast=[], default=[], acl=ACL.PUBLIC | ACL.LOCAL)
def dependencies(self, value):
"""Software dependencies.
This is a transition method how to improve dependencies handling.
The regular way should be setting up them in activity.info instead.
"""
return value
@db.stored_property(typecast=dict, default={},
acl=ACL.PUBLIC | ACL.LOCAL)
def aliases(self, value):
return value
@db.stored_property(typecast=dict, default={}, acl=ACL.PUBLIC | ACL.LOCAL)
def packages(self, value):
return value
@staticmethod
def populate_images(props, svg):
if 'guid' in props:
from sugar_network.toolkit.sugar import color_svg
svg = color_svg(svg, props['guid'])
def convert(w, h):
png = toolkit.svg_to_png(svg, w, h)
return {'blob': png,
'mime_type': 'image/png',
'digest': hashlib.sha1(png.getvalue()).hexdigest(),
}
props['artifact_icon'] = {
'blob': StringIO(svg),
'mime_type': 'image/svg+xml',
'digest': hashlib.sha1(svg).hexdigest(),
}
props['icon'] = convert(55, 55)
props['logo'] = convert(140, 140)
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