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Diffstat (limited to 'service/clipboardservice.py')
| -rw-r--r-- | service/clipboardservice.py | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/service/clipboardservice.py b/service/clipboardservice.py new file mode 100644 index 0000000..fec546f --- /dev/null +++ b/service/clipboardservice.py @@ -0,0 +1,212 @@ +# 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 dbus +import dbus.service + +from sugar import env +from sugar import util +from sugar import mime + +from clipboardobject import ClipboardObject, Format + +NAME_KEY = 'NAME' +PERCENT_KEY = 'PERCENT' +ICON_KEY = 'ICON' +PREVIEW_KEY = 'PREVIEW' +ACTIVITIES_KEY = 'ACTIVITIES' +FORMATS_KEY = 'FORMATS' + +TYPE_KEY = 'TYPE' +DATA_KEY = 'DATA' +ON_DISK_KEY = 'ON_DISK' + +class ClipboardService(dbus.service.Object): + + _CLIPBOARD_DBUS_INTERFACE = "org.laptop.Clipboard" + _CLIPBOARD_OBJECT_PATH = "/org/laptop/Clipboard" + _CLIPBOARD_OBJECTS_PATH = _CLIPBOARD_OBJECT_PATH + "/Objects/" + + def __init__(self): + self._objects = {} + self._next_id = 0 + + bus = dbus.SessionBus() + bus_name = dbus.service.BusName(self._CLIPBOARD_DBUS_INTERFACE, bus=bus) + dbus.service.Object.__init__(self, bus_name, self._CLIPBOARD_OBJECT_PATH) + + def _get_next_object_id(self): + self._next_id += 1 + return self._next_id + + # dbus methods + @dbus.service.method(_CLIPBOARD_DBUS_INTERFACE, + in_signature="s", out_signature="o") + def add_object(self, name): + logging.debug('ClipboardService.add_object') + op = self._CLIPBOARD_OBJECTS_PATH + "%d" % self._get_next_object_id() + self._objects[op] = ClipboardObject(op, name) + self.object_added(dbus.ObjectPath(op), name) + logging.debug('Added object ' + op + ' with name ' + name) + return dbus.ObjectPath(op) + + @dbus.service.method(_CLIPBOARD_DBUS_INTERFACE, + in_signature="ssayb", out_signature="", byte_arrays=True) + def add_object_format(self, object_path, format_type, data, on_disk): + logging.debug('ClipboardService.add_object_format') + cb_object = self._objects[str(object_path)] + + 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.object_state_changed(object_path, {NAME_KEY: cb_object.get_name(), + PERCENT_KEY: cb_object.get_percent(), + ICON_KEY: cb_object.get_icon(), + PREVIEW_KEY: cb_object.get_preview(), + ACTIVITIES_KEY: cb_object.get_activities()}) + + @dbus.service.method(_CLIPBOARD_DBUS_INTERFACE, + in_signature="o", out_signature="") + def delete_object(self, object_path): + cb_object = self._objects.pop(str(object_path)) + cb_object.destroy() + self.object_deleted(object_path) + logging.debug('Deleted object with object_id ' + object_path) + + @dbus.service.method(_CLIPBOARD_DBUS_INTERFACE, + in_signature="oi", out_signature="") + def set_object_percent(self, object_path, percent): + cb_object = self._objects[str(object_path)] + 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: + 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(object_path, + 'text/plain', + data=formats['UTF8_STRING'].get_data(), + on_disk=False) + elif 'text/unicode' in formats.keys(): + self.add_object_format(object_path, + 'text/plain', + data=formats['UTF8_STRING'].get_data(), + on_disk=False) + + self.object_state_changed(object_path, {NAME_KEY: cb_object.get_name(), + PERCENT_KEY: percent, + ICON_KEY: cb_object.get_icon(), + PREVIEW_KEY: cb_object.get_preview(), + ACTIVITIES_KEY: cb_object.get_activities()}) + + @dbus.service.method(_CLIPBOARD_DBUS_INTERFACE, + in_signature="o", out_signature="a{sv}") + def get_object(self, object_path): + logging.debug('ClipboardService.get_object') + + if not self._objects.has_key(str(object_path)): + return dbus.Dictionary({}, signature='sv') + + cb_object = self._objects[str(object_path)] + formats = cb_object.get_formats() + format_types = dbus.Array([], signature='s') + + for type, format in formats.iteritems(): + format_types.append(type) + + result_dict = {NAME_KEY: cb_object.get_name(), + PERCENT_KEY: cb_object.get_percent(), + ICON_KEY: cb_object.get_icon(), + PREVIEW_KEY: cb_object.get_preview(), + ACTIVITIES_KEY: cb_object.get_activities(), + FORMATS_KEY: format_types} + return dbus.Dictionary(result_dict) + + @dbus.service.method(_CLIPBOARD_DBUS_INTERFACE, + in_signature="os", out_signature="a{sv}") + def get_object_data(self, object_path, format_type): + logging.debug('ClipboardService.get_object_data') + cb_object = self._objects[str(object_path)] + format = cb_object.get_formats()[format_type] + result_dict = {TYPE_KEY: format.get_type(), + DATA_KEY: dbus.ByteArray(format.get_data()), + ON_DISK_KEY: format.is_on_disk()} + return dbus.Dictionary(result_dict) + + # dbus signals + @dbus.service.signal(_CLIPBOARD_DBUS_INTERFACE, signature="os") + def object_added(self, object_path, name): + pass + + @dbus.service.signal(_CLIPBOARD_DBUS_INTERFACE, signature="o") + def object_deleted(self, object_path): + pass + + @dbus.service.signal(_CLIPBOARD_DBUS_INTERFACE, signature="oa{sv}") + def object_state_changed(self, object_path, values): + pass + + 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) + + return 'file://' + new_file_path + +_instance = None + +def get_instance(): + global _instance + if not _instance: + _instance = ClipboardService() + return _instance |