mirror of
https://github.com/virt-manager/virt-manager.git
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717ff72684
Call the callbacks directly rather than using signals. engine.py has become a bit of a catchall for shared functionality and this is a step towards disentangling it
332 lines
12 KiB
Python
332 lines
12 KiB
Python
#
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# Copyright (C) 2009, 2013, 2014 Red Hat, Inc.
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# Copyright (C) 2009 Cole Robinson <crobinso@redhat.com>
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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 Street, Fifth Floor, Boston,
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# MA 02110-1301 USA.
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#
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import logging
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from gi.repository import Gtk
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from .asyncjob import vmmAsyncJob
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####################################################################
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# Build toolbar shutdown button menu (manager and details toolbar) #
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####################################################################
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class _VMMenu(Gtk.Menu):
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def __init__(self, src, current_vm_cb, show_open=True):
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Gtk.Menu.__init__(self)
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self._parent = src
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self._current_vm_cb = current_vm_cb
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self._show_open = show_open
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self._init_state()
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def _add_action(self, label, widgetname, cb,
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iconname="system-shutdown"):
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if label.startswith("gtk-"):
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item = Gtk.ImageMenuItem.new_from_stock(label, None)
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else:
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item = Gtk.ImageMenuItem.new_with_mnemonic(label)
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if iconname:
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if iconname.startswith("gtk-"):
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icon = Gtk.Image.new_from_stock(iconname, Gtk.IconSize.MENU)
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else:
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icon = Gtk.Image.new_from_icon_name(iconname,
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Gtk.IconSize.MENU)
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item.set_image(icon)
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item.vmm_widget_name = widgetname
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if cb:
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def _cb(_menuitem):
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_vm = self._current_vm_cb()
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if _vm:
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return cb(self._parent, _vm)
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item.connect("activate", _cb)
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self.add(item)
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return item
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def _init_state(self):
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raise NotImplementedError()
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def update_widget_states(self, vm):
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raise NotImplementedError()
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class VMShutdownMenu(_VMMenu):
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"""
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Shutdown submenu for reboot, forceoff, reset, etc.
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"""
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def _init_state(self):
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self._add_action(_("_Reboot"), "reboot", VMActionUI.reboot)
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self._add_action(_("_Shut Down"), "shutdown", VMActionUI.shutdown)
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self._add_action(_("F_orce Reset"), "reset", VMActionUI.reset)
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self._add_action(_("_Force Off"), "destroy", VMActionUI.destroy)
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self.add(Gtk.SeparatorMenuItem())
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self._add_action(_("Sa_ve"), "save", VMActionUI.save,
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iconname=Gtk.STOCK_SAVE)
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self.show_all()
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def update_widget_states(self, vm):
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statemap = {
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"reboot": bool(vm and vm.is_stoppable()),
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"shutdown": bool(vm and vm.is_stoppable()),
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"reset": bool(vm and vm.is_stoppable()),
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"destroy": bool(vm and vm.is_destroyable()),
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"save": bool(vm and vm.is_destroyable()),
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}
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for child in self.get_children():
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name = getattr(child, "vmm_widget_name", None)
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if name in statemap:
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child.set_sensitive(statemap[name])
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if name == "reset":
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child.set_tooltip_text(None)
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if vm and not vm.conn.check_support(
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vm.conn.SUPPORT_CONN_DOMAIN_RESET):
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child.set_tooltip_text(_("Hypervisor does not support "
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"domain reset."))
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child.set_sensitive(False)
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class VMActionMenu(_VMMenu):
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"""
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VM submenu for run, pause, shutdown, clone, etc
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"""
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def _init_state(self):
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self._add_action(_("_Run"), "run", VMActionUI.run,
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iconname=Gtk.STOCK_MEDIA_PLAY)
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self._add_action(_("_Pause"), "suspend", VMActionUI.suspend,
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Gtk.STOCK_MEDIA_PAUSE)
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self._add_action(_("R_esume"), "resume", VMActionUI.resume,
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Gtk.STOCK_MEDIA_PAUSE)
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s = self._add_action(_("_Shut Down"), "shutdown", None)
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s.set_submenu(VMShutdownMenu(self._parent, self._current_vm_cb))
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def _make_emit_cb(_name):
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def _emit_cb(_src, _vm):
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return _src.emit(_name, _vm.conn.get_uri(), _vm.get_name())
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return _emit_cb
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self.add(Gtk.SeparatorMenuItem())
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self._add_action(_("Clone..."), "clone",
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_make_emit_cb("action-clone-domain"), iconname=None)
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self._add_action(_("Migrate..."), "migrate",
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_make_emit_cb("action-migrate-domain"), iconname=None)
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self._add_action(_("_Delete"), "delete",
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_make_emit_cb("action-delete-domain"),
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iconname=Gtk.STOCK_DELETE)
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if self._show_open:
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self.add(Gtk.SeparatorMenuItem())
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self._add_action(Gtk.STOCK_OPEN, "show",
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_make_emit_cb("action-show-domain"), iconname=None)
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self.show_all()
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def update_widget_states(self, vm):
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statemap = {
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"run": bool(vm and vm.is_runable()),
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"shutdown": bool(vm and vm.is_stoppable()),
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"suspend": bool(vm and vm.is_stoppable()),
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"resume": bool(vm and vm.is_paused()),
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"migrate": bool(vm and vm.is_stoppable()),
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"clone": bool(vm and vm.is_clonable()),
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}
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vismap = {
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"suspend": bool(vm and not vm.is_paused()),
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"resume": bool(vm and vm.is_paused()),
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}
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for child in self.get_children():
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name = getattr(child, "vmm_widget_name", None)
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if child.get_submenu():
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child.get_submenu().update_widget_states(vm)
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if name in statemap:
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child.set_sensitive(statemap[name])
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if name in vismap:
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child.set_visible(vismap[name])
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def change_run_text(self, text):
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for child in self.get_children():
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if getattr(child, "vmm_widget_name", None) == "run":
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child.get_child().set_label(text)
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class VMActionUI(object):
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"""
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Singleton object for handling VM actions, asking for confirmation,
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showing errors/progress dialogs, etc.
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"""
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@staticmethod
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def save_cancel(asyncjob, vm):
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logging.debug("Cancelling save job")
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if not vm:
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return
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try:
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vm.abort_job()
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except Exception as e:
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logging.exception("Error cancelling save job")
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asyncjob.show_warning(_("Error cancelling save job: %s") % str(e))
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return
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asyncjob.job_canceled = True
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return
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@staticmethod
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def save(src, vm):
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if not src.err.chkbox_helper(src.config.get_confirm_poweroff,
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src.config.set_confirm_poweroff,
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text1=_("Are you sure you want to save '%s'?") % vm.get_name()):
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return
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_cancel_cb = None
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if vm.getjobinfo_supported:
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_cancel_cb = (VMActionUI.save_cancel, vm)
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def cb(asyncjob):
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vm.save(meter=asyncjob.get_meter())
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def finish_cb(error, details):
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if error is not None:
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error = _("Error saving domain: %s") % error
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src.err.show_err(error, details=details)
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progWin = vmmAsyncJob(cb, [],
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finish_cb, [],
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_("Saving Virtual Machine"),
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_("Saving virtual machine memory to disk "),
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src.topwin, cancel_cb=_cancel_cb)
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progWin.run()
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@staticmethod
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def destroy(src, vm):
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if not src.err.chkbox_helper(
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src.config.get_confirm_forcepoweroff,
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src.config.set_confirm_forcepoweroff,
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text1=_("Are you sure you want to force poweroff '%s'?" %
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vm.get_name()),
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text2=_("This will immediately poweroff the VM without "
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"shutting down the OS and may cause data loss.")):
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return
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logging.debug("Destroying vm '%s'", vm.get_name())
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vmmAsyncJob.simple_async_noshow(vm.destroy, [], src,
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_("Error shutting down domain"))
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@staticmethod
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def suspend(src, vm):
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if not src.err.chkbox_helper(src.config.get_confirm_pause,
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src.config.set_confirm_pause,
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text1=_("Are you sure you want to pause '%s'?" %
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vm.get_name())):
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return
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logging.debug("Pausing vm '%s'", vm.get_name())
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vmmAsyncJob.simple_async_noshow(vm.suspend, [], src,
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_("Error pausing domain"))
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@staticmethod
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def resume(src, vm):
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logging.debug("Unpausing vm '%s'", vm.get_name())
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vmmAsyncJob.simple_async_noshow(vm.resume, [], src,
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_("Error unpausing domain"))
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@staticmethod
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def run(src, vm):
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logging.debug("Starting vm '%s'", vm.get_name())
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if vm.has_managed_save():
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def errorcb(error, details):
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# This is run from the main thread
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res = src.err.show_err(
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_("Error restoring domain") + ": " + error,
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details=details,
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text2=_(
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"The domain could not be restored. Would you like\n"
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"to remove the saved state and perform a regular\n"
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"start up?"),
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dialog_type=Gtk.MessageType.WARNING,
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buttons=Gtk.ButtonsType.YES_NO,
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modal=True)
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if not res:
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return
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try:
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vm.remove_saved_image()
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VMActionUI.run(src, vm)
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except Exception as e:
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src.err.show_err(_("Error removing domain state: %s")
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% str(e))
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# VM will be restored, which can take some time, so show progress
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title = _("Restoring Virtual Machine")
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text = _("Restoring virtual machine memory from disk")
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vmmAsyncJob.simple_async(vm.startup, [], src,
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title, text, "", errorcb=errorcb)
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else:
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# Regular startup
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errorintro = _("Error starting domain")
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vmmAsyncJob.simple_async_noshow(vm.startup, [], src, errorintro)
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@staticmethod
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def shutdown(src, vm):
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if not src.err.chkbox_helper(src.config.get_confirm_poweroff,
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src.config.set_confirm_poweroff,
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text1=_("Are you sure you want to poweroff '%s'?" %
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vm.get_name())):
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return
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logging.debug("Shutting down vm '%s'", vm.get_name())
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vmmAsyncJob.simple_async_noshow(vm.shutdown, [], src,
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_("Error shutting down domain"))
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@staticmethod
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def reboot(src, vm):
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if not src.err.chkbox_helper(src.config.get_confirm_poweroff,
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src.config.set_confirm_poweroff,
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text1=_("Are you sure you want to reboot '%s'?" %
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vm.get_name())):
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return
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logging.debug("Rebooting vm '%s'", vm.get_name())
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vmmAsyncJob.simple_async_noshow(vm.reboot, [], src,
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_("Error rebooting domain"))
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@staticmethod
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def reset(src, vm):
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if not src.err.chkbox_helper(
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src.config.get_confirm_forcepoweroff,
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src.config.set_confirm_forcepoweroff,
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text1=_("Are you sure you want to force reset '%s'?" %
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vm.get_name()),
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text2=_("This will immediately reset the VM without "
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"shutting down the OS and may cause data loss.")):
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return
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logging.debug("Resetting vm '%s'", vm.get_name())
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vmmAsyncJob.simple_async_noshow(vm.reset, [], src,
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_("Error resetting domain"))
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