virt-manager/virtManager/storagebrowse.py

347 lines
12 KiB
Python

#
# Copyright (C) 2009, 2013, 2014 Red Hat, Inc.
# Copyright (C) 2009 Cole Robinson <crobinso@redhat.com>
#
# 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 Street, Fifth Floor, Boston,
# MA 02110-1301 USA.
#
import logging
# pylint: disable=E0611
from gi.repository import GObject
from gi.repository import Gtk
# pylint: enable=E0611
from virtManager import host
from virtManager.createvol import vmmCreateVolume
from virtManager.baseclass import vmmGObjectUI
from virtManager import uihelpers
class vmmStorageBrowser(vmmGObjectUI):
__gsignals__ = {
"storage-browse-finish": (GObject.SignalFlags.RUN_FIRST, None, [str]),
}
def __init__(self, conn):
vmmGObjectUI.__init__(self, "storagebrowse.ui", "vmm-storage-browse")
self.conn = conn
self.conn_signal_ids = []
self.finish_cb_id = None
self.can_new_volume = True
self._first_run = False
# Add Volume wizard
self.addvol = None
# Name of VM we are choosing storage for, can be used to recommend
# volume name if creating
self.vm_name = None
# Arguments to pass to util.browse_local for local storage
self.browse_reason = None
self.local_args = {}
self.stable_defaults = False
self.builder.connect_signals({
"on_vmm_storage_browse_delete_event" : self.close,
"on_browse_cancel_clicked" : self.close,
"on_browse_local_clicked" : self.browse_local,
"on_new_volume_clicked" : self.new_volume,
"on_choose_volume_clicked" : self.finish,
"on_vol_list_row_activated" : self.finish,
"on_vol_list_changed": self.vol_selected,
})
self.bind_escape_key_close()
self.set_initial_state()
def show(self, parent, conn):
logging.debug("Showing storage browser")
self.reset_state(conn)
self.topwin.set_transient_for(parent)
self.topwin.present()
self.conn.schedule_priority_tick(pollpool=True)
def close(self, ignore1=None, ignore2=None):
logging.debug("Closing storage browser")
self.topwin.hide()
if self.addvol:
self.addvol.close()
return 1
def _cleanup(self):
self.remove_conn()
self.conn = None
if self.addvol:
self.addvol.cleanup()
self.addvol = None
def remove_conn(self):
if not self.conn:
return
for i in self.conn_signal_ids:
self.conn.disconnect(i)
def set_finish_cb(self, callback):
if self.finish_cb_id:
self.disconnect(self.finish_cb_id)
self.finish_cb_id = self.connect("storage-browse-finish", callback)
def set_browse_reason(self, reason):
self.browse_reason = reason
def set_local_arg(self, arg, val):
self.local_args[arg] = val
def set_vm_name(self, name):
self.vm_name = name
def set_initial_state(self):
pool_list = self.widget("pool-list")
host.init_pool_list(pool_list, self.pool_selected)
# (Key, Name, Cap, Format, Used By, sensitive)
vol_list = self.widget("vol-list")
volListModel = Gtk.ListStore(str, str, str, str, str, bool)
vol_list.set_model(volListModel)
volCol = Gtk.TreeViewColumn(_("Name"))
vol_txt1 = Gtk.CellRendererText()
volCol.pack_start(vol_txt1, True)
volCol.add_attribute(vol_txt1, 'text', 1)
volCol.add_attribute(vol_txt1, 'sensitive', 5)
volCol.set_sort_column_id(1)
vol_list.append_column(volCol)
volSizeCol = Gtk.TreeViewColumn(_("Size"))
vol_txt2 = Gtk.CellRendererText()
volSizeCol.pack_start(vol_txt2, False)
volSizeCol.add_attribute(vol_txt2, 'text', 2)
volSizeCol.add_attribute(vol_txt2, 'sensitive', 5)
volSizeCol.set_sort_column_id(2)
vol_list.append_column(volSizeCol)
volPathCol = Gtk.TreeViewColumn(_("Format"))
vol_txt4 = Gtk.CellRendererText()
volPathCol.pack_start(vol_txt4, False)
volPathCol.add_attribute(vol_txt4, 'text', 3)
volPathCol.add_attribute(vol_txt4, 'sensitive', 5)
volPathCol.set_sort_column_id(3)
vol_list.append_column(volPathCol)
volUseCol = Gtk.TreeViewColumn(_("Used By"))
vol_txt5 = Gtk.CellRendererText()
volUseCol.pack_start(vol_txt5, False)
volUseCol.add_attribute(vol_txt5, 'text', 4)
volUseCol.add_attribute(vol_txt5, 'sensitive', 5)
volUseCol.set_sort_column_id(4)
vol_list.append_column(volUseCol)
volListModel.set_sort_column_id(1, Gtk.SortType.ASCENDING)
def reset_state(self, conn):
self.remove_conn()
self.conn = conn
self.repopulate_storage_pools()
ids = []
ids.append(self.conn.connect("pool-added",
self.repopulate_storage_pools))
ids.append(self.conn.connect("pool-removed",
self.repopulate_storage_pools))
ids.append(self.conn.connect("pool-started",
self.refresh_storage_pool))
ids.append(self.conn.connect("pool-stopped",
self.refresh_storage_pool))
self.conn_signal_ids = ids
# FIXME: Need a connection specific "vol-added" function?
# Won't be able to pick that change up from outside?
if not self._first_run:
self._first_run = True
pool = uihelpers.get_default_pool(self.conn)
uihelpers.set_row_selection(
self.widget("pool-list"), pool and pool.get_uuid() or None)
# Manually trigger vol_selected, so buttons are in the correct state
self.vol_selected()
self.pool_selected()
tooltip = ""
is_remote = self.conn.is_remote()
self.widget("browse-local").set_sensitive(not is_remote)
if is_remote:
tooltip = _("Cannot use local storage on remote connection.")
self.widget("browse-local").set_tooltip_text(tooltip)
# Set data based on browse type
self.local_args["dialog_type"] = None
self.local_args["browse_reason"] = self.browse_reason
data = self.config.browse_reason_data.get(self.browse_reason)
if data:
self.topwin.set_title(data["storage_title"])
self.local_args["dialog_name"] = data["local_title"]
self.local_args["dialog_type"] = data.get("dialog_type")
self.local_args["choose_button"] = data.get("choose_button")
self.widget("new-volume").set_visible(self.can_new_volume)
# Convenience helpers
def allow_create(self):
data = self.config.browse_reason_data.get(self.browse_reason)
if not data:
return True
return data["enable_create"]
def current_pool(self):
row = uihelpers.get_list_selection(self.widget("pool-list"))
if not row:
return
try:
return self.conn.get_pool(row[0])
except KeyError:
return None
def current_vol_row(self):
if not self.current_pool():
return
return uihelpers.get_list_selection(self.widget("vol-list"))
def current_vol(self):
pool = self.current_pool()
row = self.current_vol_row()
if not pool or not row:
return
return pool.get_volume(row[0])
def refresh_storage_pool(self, src_ignore, uuid):
pool_list = self.widget("pool-list")
host.refresh_pool_in_list(pool_list, self.conn, uuid)
curpool = self.current_pool()
if curpool.get_uuid() != uuid:
return
# Currently selected pool changed state: force a 'pool_selected' to
# update vol list
self.pool_selected(self.widget("pool-list").get_selection())
def repopulate_storage_pools(self, src_ignore=None, uuid_ignore=None):
pool_list = self.widget("pool-list")
host.populate_storage_pools(pool_list, self.conn, self.current_pool())
# Listeners
def pool_selected(self, src_ignore=None):
pool = self.current_pool()
newvol = bool(pool)
if pool:
pool.tick()
newvol = pool.is_active()
newvol = newvol and self.allow_create()
self.widget("new-volume").set_sensitive(newvol)
self.populate_storage_volumes()
def vol_selected(self, ignore=None):
vol = self.current_vol_row()
canchoose = bool(vol and vol[5])
self.widget("choose-volume").set_sensitive(canchoose)
def refresh_current_pool(self, createvol):
cp = self.current_pool()
if cp is None:
return
cp.refresh()
self.refresh_storage_pool(None, cp.get_uuid())
vol_list = self.widget("vol-list")
def select_volume(model, path, it, volume_name):
if model.get(it, 0)[0] == volume_name:
uihelpers.set_list_selection(vol_list, path)
vol_list.get_model().foreach(select_volume, createvol.vol.name)
def new_volume(self, src_ignore):
pool = self.current_pool()
if pool is None:
return
try:
if self.addvol is None:
self.addvol = vmmCreateVolume(self.conn, pool)
self.addvol.connect("vol-created", self.refresh_current_pool)
else:
self.addvol.set_parent_pool(self.conn, pool)
self.addvol.set_modal(True)
self.addvol.set_name_hint(self.vm_name)
self.addvol.show(self.topwin)
except Exception, e:
self.show_err(_("Error launching volume wizard: %s") % str(e))
def browse_local(self, src_ignore):
if not self.local_args.get("dialog_name"):
self.local_args["dialog_name"] = None
filename = uihelpers.browse_local(parent=self.topwin,
conn=self.conn,
**self.local_args)
if filename:
self._do_finish(path=filename)
def finish(self, ignore=None, ignore1=None, ignore2=None):
self._do_finish()
def _do_finish(self, path=None):
if not path:
path = self.current_vol().get_target_path()
self.emit("storage-browse-finish", path)
self.close()
# Do stuff!
def populate_storage_volumes(self):
list_widget = self.widget("vol-list")
pool = self.current_pool()
def sensitive_cb(fmt):
if ((self.browse_reason == self.config.CONFIG_DIR_FS)
and fmt != 'dir'):
return False
elif self.stable_defaults:
if fmt == "vmdk":
return False
return True
host.populate_storage_volumes(list_widget, pool, sensitive_cb)
def show_err(self, info, details=None):
self.err.show_err(info,
details=details,
modal=True)