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# Copyright (C) 2006, Red Hat, Inc.
#
# 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 St, Fifth Floor, Boston, MA 02110-1301 USA
import logging
import os
import shutil
import urlparse
import tempfile
import gobject
from sugar import mime
from jarabe.frame.clipboardobject import ClipboardObject, Format
class Clipboard(gobject.GObject):
__gsignals__ = {
'object-added': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([object])),
'object-deleted': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([int])),
'object-state-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([object]))
}
def __init__(self):
gobject.GObject.__init__(self)
self._objects = {}
self._next_id = 0
def _get_next_object_id(self):
self._next_id += 1
return self._next_id
def add_object(self, name):
logging.debug('Clipboard.add_object')
object_id = self._get_next_object_id()
self._objects[object_id] = ClipboardObject(object_id, name)
self.emit('object-added', self._objects[object_id])
return object_id
def add_object_format(self, object_id, format_type, data, on_disk):
logging.debug('Clipboard.add_object_format')
cb_object = self._objects[object_id]
if format_type == 'XdndDirectSave0':
format_ = Format('text/uri-list', data + '\r\n', on_disk)
format_.owns_disk_data = True
cb_object.add_format(format_)
elif on_disk and cb_object.get_percent() == 100:
new_uri = self._copy_file(data)
cb_object.add_format(Format(format_type, new_uri, on_disk))
logging.debug('Added format of type ' + format_type
+ ' with path at ' + new_uri)
else:
cb_object.add_format(Format(format_type, data, on_disk))
logging.debug('Added in-memory format of type ' + format_type + '.')
self.emit('object-state-changed', cb_object)
def delete_object(self, object_id):
cb_object = self._objects.pop(object_id)
cb_object.destroy()
self.emit('object-deleted', object_id)
logging.debug('Deleted object with object_id %r', object_id)
def set_object_percent(self, object_id, percent):
cb_object = self._objects[object_id]
if percent < 0 or percent > 100:
raise ValueError("invalid percentage")
if cb_object.get_percent() > percent:
raise ValueError("invalid percentage; less than current percent")
if cb_object.get_percent() == percent:
# ignore setting same percentage
return
cb_object.set_percent(percent)
if percent == 100:
self._process_object(cb_object)
self.emit('object-state-changed', cb_object)
def _process_object(self, cb_object):
formats = cb_object.get_formats()
for format_name, format_ in formats.iteritems():
if format_.is_on_disk() and not format_.owns_disk_data:
new_uri = self._copy_file(format_.get_data())
format_.set_data(new_uri)
# Add a text/plain format to objects that are text but lack it
if 'text/plain' not in formats.keys():
if 'UTF8_STRING' in formats.keys():
self.add_object_format(
cb_object.get_id(), 'text/plain',
data=formats['UTF8_STRING'].get_data(), on_disk=False)
elif 'text/unicode' in formats.keys():
self.add_object_format(
cb_object.get_id(), 'text/plain',
data=formats['UTF8_STRING'].get_data(), on_disk=False)
def get_object(self, object_id):
logging.debug('Clipboard.get_object')
return self._objects[object_id]
def get_object_data(self, object_id, format_type):
logging.debug('Clipboard.get_object_data')
cb_object = self._objects[object_id]
format_ = cb_object.get_formats()[format_type]
return format_
def _copy_file(self, original_uri):
uri = urlparse.urlparse(original_uri)
path_, file_name = os.path.split(uri.path)
root, ext = os.path.splitext(file_name)
if not ext or ext == '.':
mime_type = mime.get_for_file(uri.path)
ext = '.' + mime.get_primary_extension(mime_type)
f_, new_file_path = tempfile.mkstemp(ext, root)
del f_
shutil.copyfile(uri.path, new_file_path)
os.chmod(new_file_path, 0644)
return 'file://' + new_file_path
_instance = None
def get_instance():
global _instance
if not _instance:
_instance = Clipboard()
return _instance
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