[Sugar-devel] [PATCH v3] Downgrading activities not allowed. (SL#2164)
shanjit at seeta.in
shanjit at seeta.in
Sat Oct 16 04:01:02 EDT 2010
Downgrading an activity is now made possible. When a .xo file of a version older than the currently installed version is clicked, a downgrading option is made available, by popping up of a confirmation alert. Depending upton the choice selected you can downgrade the activity.
v1 -> v2. Named according to the nomenclature suggested,inline function used,signal emission condition revised,global variables removed.
v2 -> v3. Taking care of all calling of misc.resume.
Signed-off-by: Shanjit Singh Jajmann <shanjit at seeta.in>, Anubhav Aggarwal <anubhav at seeta.in>
---
src/jarabe/journal/misc.py | 29 +++++---
src/jarabe/journal/versionalert.py | 121 ++++++++++++++++++++++++++++++++++++
src/jarabe/model/bundleregistry.py | 9 ++-
3 files changed, 145 insertions(+), 14 deletions(-)
create mode 100644 src/jarabe/journal/versionalert.py
diff --git a/src/jarabe/journal/misc.py b/src/jarabe/journal/misc.py
index 32a2847..99ea2d4 100644
--- a/src/jarabe/journal/misc.py
+++ b/src/jarabe/journal/misc.py
@@ -30,6 +30,7 @@ from sugar.graphics.xocolor import XoColor
from sugar import mime
from sugar.bundle.activitybundle import ActivityBundle
from sugar.bundle.contentbundle import ContentBundle
+from sugar.bundle.bundle import AlreadyInstalledException
from sugar import util
from jarabe.view import launcher
@@ -150,6 +151,7 @@ def get_activities(metadata):
def resume(metadata, bundle_id=None):
registry = bundleregistry.get_registry()
+ version_downgrade = False
if is_activity_bundle(metadata) and bundle_id is None:
@@ -159,20 +161,25 @@ def resume(metadata, bundle_id=None):
bundle = ActivityBundle(file_path)
if not registry.is_installed(bundle):
logging.debug('Installing activity bundle')
- registry.install(bundle)
+ try:
+ registry.install(bundle)
+ except AlreadyInstalledException:
+ v_alert = VersionAlert()
+ v_alert.give_bundle(bundle)
+ version_downgrade= True
else:
logging.debug('Upgrading activity bundle')
registry.upgrade(bundle)
-
- logging.debug('activityfactory.creating bundle with id %r',
- bundle.get_bundle_id())
- installed_bundle = registry.get_bundle(bundle.get_bundle_id())
- if installed_bundle:
- launch(installed_bundle)
- else:
- logging.error('Bundle %r is not installed.',
- bundle.get_bundle_id())
-
+ if not version_downgrade:
+ logging.debug('activityfactory.creating bundle with id %r',
+ bundle.get_bundle_id())
+ installed_bundle = registry.get_bundle(bundle.get_bundle_id())
+ if installed_bundle:
+ launch(installed_bundle)
+ else:
+ logging.error('Bundle %r is not installed.',
+ bundle.get_bundle_id())
+
elif is_content_bundle(metadata) and bundle_id is None:
logging.debug('Creating content bundle')
diff --git a/src/jarabe/journal/versionalert.py b/src/jarabe/journal/versionalert.py
new file mode 100644
index 0000000..2f27a2f
--- /dev/null
+++ b/src/jarabe/journal/versionalert.py
@@ -0,0 +1,121 @@
+
+# Copyright (C) 2008 One Laptop Per Child
+#
+# 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 gtk
+from gettext import gettext as _
+
+from sugar.graphics import style
+from jarabe.model import bundleregistry
+from sugar.activity import activityfactory
+
+class VersionAlert(gtk.Window):
+
+ def __init__(self):
+ gtk.Window.__init__(self)
+
+ self.set_border_width(style.LINE_WIDTH)
+ offset = style.GRID_CELL_SIZE
+ width = gtk.gdk.screen_width() - offset * 3
+ height = gtk.gdk.screen_height() - offset * 8.5
+ self.set_size_request(width, height)
+ self.set_position(gtk.WIN_POS_CENTER_ALWAYS)
+ self.set_decorated(gtk.WINDOW_TOPLEVEL)
+ self.set_resizable(False)
+ self.set_modal(False)
+
+ self._main_view = gtk.EventBox()
+ self._vbox = gtk.VBox()
+ self._vbox.set_spacing(style.DEFAULT_SPACING)
+ self._vbox.set_border_width(style.GRID_CELL_SIZE - 30)
+ self._main_view.modify_bg(gtk.STATE_NORMAL,
+ style.COLOR_BLACK.get_gdk_color())
+ self._main_view.add(self._vbox)
+ self._vbox.show()
+
+ self._title = gtk.Label()
+ self._title.modify_fg(gtk.STATE_NORMAL,
+ style.COLOR_WHITE.get_gdk_color())
+ self._title.set_markup('<b>%s</b>' % _('Newer Version of the activity i'
+ 's found'))
+ self._vbox.pack_start(self._title, False)
+ self._title.show()
+
+ self._message = gtk.Label(_('Do you want to continue with its installat'
+ 'ion?'))
+
+ self._message.modify_fg(gtk.STATE_NORMAL,
+ style.COLOR_WHITE.get_gdk_color())
+ self._vbox.pack_start(self._message, False)
+ self._message.show()
+
+ self._hbox = gtk.HBox()
+ self._hbox.set_spacing(style.DEFAULT_SPACING * 49)
+
+
+
+ alignment = gtk.Alignment(xalign=0.5, yalign=0.5)
+ self._hbox.pack_start(alignment, expand=False)
+ alignment.show()
+
+ self._install_cancel = gtk.Button()
+ self._install_cancel.set_label(_('Cancel'))
+ alignment.add(self._install_cancel)
+ self._install_cancel.show()
+ self._install_cancel.connect('clicked', self.__install_cancel_cb)
+
+
+ alignment = gtk.Alignment(xalign=0.5, yalign=0.5)
+ self._hbox.pack_start(alignment, expand=False)
+ alignment.show()
+
+ self._install_ok = gtk.Button()
+ self._install_ok.set_label(_(' Ok '))
+ alignment.add(self._install_ok)
+ self._install_ok.show()
+ self._install_ok.connect('clicked', self.__install_ok_cb)
+ self._vbox.pack_start(self._hbox, False)
+ self.add(self._main_view)
+
+
+ self._main_view.show()
+ self._hbox.show()
+ self.connect("realize", self.__realize_cb)
+
+ def give_bundle(self,bundle):
+ self.bundle = bundle
+ return
+
+ def __realize_cb(self, widget):
+ self.window.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_NORMAL)
+ self.window.set_accept_focus(True)
+
+ def __install_cancel_cb(self, button):
+ '''The opener will listen on the destroy signal
+ '''
+ self.destroy()
+
+ def __install_ok_cb(self, button):
+ registry = bundleregistry.get_registry()
+ registry.install(self.bundle,uid=None,force_downgrade=True)
+ installed_bundle = registry.get_bundle(self.bundle.get_bundle_id())
+ if installed_bundle:
+ activityfactory.create(installed_bundle)
+ '''The opener will listen on the destroy signal
+ '''
+ self.destroy()
+
+
diff --git a/src/jarabe/model/bundleregistry.py b/src/jarabe/model/bundleregistry.py
index 699e339..e52914b 100644
--- a/src/jarabe/model/bundleregistry.py
+++ b/src/jarabe/model/bundleregistry.py
@@ -373,14 +373,17 @@ class BundleRegistry(gobject.GObject):
return True
return False
- def install(self, bundle, uid=None):
+ def install(self, bundle, uid=None,force_downgrade=False):
activities_path = env.get_user_activities_path()
for installed_bundle in self._bundles:
if bundle.get_bundle_id() == installed_bundle.get_bundle_id() and \
bundle.get_activity_version() <= \
- installed_bundle.get_activity_version():
- raise AlreadyInstalledException
+ installed_bundle.get_activity_version():
+ if not force_downgrade:
+ raise AlreadyInstalledException
+ else:
+ self.uninstall(installed_bundle, force=True)
elif bundle.get_bundle_id() == installed_bundle.get_bundle_id():
self.uninstall(installed_bundle, force=True)
--
1.7.2.2
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