191 lines
7.2 KiB
Python
191 lines
7.2 KiB
Python
# Copyright (C) 2006, Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import logging
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import os
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import shutil
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import urlparse
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import tempfile
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import dbus
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import dbus.service
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from sugar import env
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from sugar import util
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from sugar.objects import mime
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from clipboardobject import ClipboardObject, Format
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NAME_KEY = 'NAME'
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PERCENT_KEY = 'PERCENT'
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ICON_KEY = 'ICON'
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PREVIEW_KEY = 'PREVIEW'
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ACTIVITY_KEY = 'ACTIVITY'
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FORMATS_KEY = 'FORMATS'
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TYPE_KEY = 'TYPE'
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DATA_KEY = 'DATA'
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ON_DISK_KEY = 'ON_DISK'
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class ClipboardService(dbus.service.Object):
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_CLIPBOARD_DBUS_INTERFACE = "org.laptop.Clipboard"
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_CLIPBOARD_OBJECT_PATH = "/org/laptop/Clipboard"
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_CLIPBOARD_OBJECTS_PATH = _CLIPBOARD_OBJECT_PATH + "/Objects/"
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def __init__(self):
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self._objects = {}
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self._next_id = 0
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bus = dbus.SessionBus()
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bus_name = dbus.service.BusName(self._CLIPBOARD_DBUS_INTERFACE, bus=bus)
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dbus.service.Object.__init__(self, bus_name, self._CLIPBOARD_OBJECT_PATH)
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def _get_next_object_id(self):
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self._next_id += 1
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return self._next_id
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# dbus methods
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@dbus.service.method(_CLIPBOARD_DBUS_INTERFACE,
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in_signature="s", out_signature="o")
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def add_object(self, name):
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logging.debug('ClipboardService.add_object')
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op = self._CLIPBOARD_OBJECTS_PATH + "%d" % self._get_next_object_id()
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self._objects[op] = ClipboardObject(op, name)
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self.object_added(dbus.ObjectPath(op), name)
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logging.debug('Added object ' + op + ' with name ' + name)
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return dbus.ObjectPath(op)
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@dbus.service.method(_CLIPBOARD_DBUS_INTERFACE,
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in_signature="ssayb", out_signature="", byte_arrays=True)
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def add_object_format(self, object_path, format_type, data, on_disk):
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logging.debug('ClipboardService.add_object_format')
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cb_object = self._objects[str(object_path)]
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if on_disk and cb_object.get_percent() == 100:
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new_uri = self._copy_file(data)
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cb_object.add_format(Format(format_type, new_uri, on_disk))
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logging.debug('Added format of type ' + format_type + ' with path at ' + new_uri)
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else:
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cb_object.add_format(Format(format_type, data, on_disk))
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logging.debug('Added in-memory format of type ' + format_type + '.')
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self.object_state_changed(object_path, {NAME_KEY: cb_object.get_name(),
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PERCENT_KEY: cb_object.get_percent(),
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ICON_KEY: cb_object.get_icon(),
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PREVIEW_KEY: cb_object.get_preview(),
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ACTIVITY_KEY: cb_object.get_activity()})
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@dbus.service.method(_CLIPBOARD_DBUS_INTERFACE,
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in_signature="o", out_signature="")
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def delete_object(self, object_path):
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cb_object = self._objects.pop(str(object_path))
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cb_object.destroy()
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self.object_deleted(object_path)
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logging.debug('Deleted object with object_id ' + object_path)
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@dbus.service.method(_CLIPBOARD_DBUS_INTERFACE,
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in_signature="oi", out_signature="")
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def set_object_percent(self, object_path, percent):
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cb_object = self._objects[str(object_path)]
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if percent < 0 or percent > 100:
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raise ValueError("invalid percentage")
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if cb_object.get_percent() > percent:
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raise ValueError("invalid percentage; less than current percent")
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if cb_object.get_percent() == percent:
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# ignore setting same percentage
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return
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cb_object.set_percent(percent)
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if percent == 100:
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for format_name, format in cb_object.get_formats().iteritems():
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if format.is_on_disk():
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new_uri = self._copy_file(format.get_data())
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format.set_data(new_uri)
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self.object_state_changed(object_path, {NAME_KEY: cb_object.get_name(),
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PERCENT_KEY: percent,
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ICON_KEY: cb_object.get_icon(),
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PREVIEW_KEY: cb_object.get_preview(),
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ACTIVITY_KEY: cb_object.get_activity()})
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@dbus.service.method(_CLIPBOARD_DBUS_INTERFACE,
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in_signature="o", out_signature="a{sv}")
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def get_object(self, object_path):
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logging.debug('ClipboardService.get_object')
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cb_object = self._objects[str(object_path)]
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formats = cb_object.get_formats()
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format_types = dbus.Array([], 's')
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for type, format in formats.iteritems():
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format_types.append(type)
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result_dict = {NAME_KEY: cb_object.get_name(),
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PERCENT_KEY: cb_object.get_percent(),
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ICON_KEY: cb_object.get_icon(),
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PREVIEW_KEY: cb_object.get_preview(),
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ACTIVITY_KEY: cb_object.get_activity(),
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FORMATS_KEY: format_types}
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return dbus.Dictionary(result_dict)
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@dbus.service.method(_CLIPBOARD_DBUS_INTERFACE,
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in_signature="os", out_signature="a{sv}")
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def get_object_data(self, object_path, format_type):
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logging.debug('ClipboardService.get_object_data')
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cb_object = self._objects[str(object_path)]
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format = cb_object.get_formats()[format_type]
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result_dict = {TYPE_KEY: format.get_type(),
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DATA_KEY: dbus.ByteArray(format.get_data()),
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ON_DISK_KEY: format.is_on_disk()}
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return dbus.Dictionary(result_dict)
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# dbus signals
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@dbus.service.signal(_CLIPBOARD_DBUS_INTERFACE, signature="os")
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def object_added(self, object_path, name):
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pass
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@dbus.service.signal(_CLIPBOARD_DBUS_INTERFACE, signature="o")
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def object_deleted(self, object_path):
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pass
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@dbus.service.signal(_CLIPBOARD_DBUS_INTERFACE, signature="oa{sv}")
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def object_state_changed(self, object_path, values):
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pass
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def _copy_file(self, original_uri):
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uri = urlparse.urlparse(original_uri)
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path, file_name = os.path.split(uri.path)
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root, ext = os.path.splitext(file_name)
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if not ext or ext == '.':
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mime_type = mime.get_for_file(uri.path)
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ext = '.' + mime.get_primary_extension(mime_type)
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f, new_file_path = tempfile.mkstemp(ext, root)
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del f
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shutil.copyfile(uri.path, new_file_path)
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return 'file://' + new_file_path
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_instance = None
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def get_instance():
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global _instance
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if not _instance:
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_instance = ClipboardService()
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return _instance
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