/usr/share/pyshared/awn/extras/awnlib.py is in python-awn-extras 0.4.1~bzr1507-0ubuntu7.
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1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 | # Awn Applet Library - Simplified APIs for programming applets for Awn.
#
# Copyright (C) 2007 - 2008 Pavel Panchekha <pavpanchekha@gmail.com>
# 2008 - 2010 onox <denkpadje@gmail.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, see <http://www.gnu.org/licenses/>.
import os
import sys
import pygtk
pygtk.require("2.0")
import gtk
from desktopagnostic import config, Color
import awn
from awn.extras import _, configbinder, __version__
import cairo
try:
import cPickle as pickle
except ImportError:
import pickle
import glib
import gobject
___file___ = sys.argv[0]
# Basically, __file__ = current file location
# sys.argv[0] = file name or called file
# Since awnlib is in site-packages, __file__ refers to something there
# For relative paths to work, we need a way of determining where the
# User applet is. So this bit of magic works.
bug_report_link = "https://launchpad.net/awn-extras/+filebug"
def create_frame(parent, label):
"""Create a frame with a bold title. To be used in a preferences window.
"""
vbox = gtk.VBox(spacing=6)
parent.add(vbox)
label = gtk.Label("<b>" + label + "</b>")
label.set_use_markup(True)
label.props.xalign = 0.0
vbox.add(label)
alignment = gtk.Alignment()
alignment.set_padding(0, 0, 12, 0)
vbox.add(alignment)
frame_vbox = gtk.VBox(spacing=6)
alignment.add(frame_vbox)
return frame_vbox
def add_cell_renderer_text(combobox):
"""Add a gtk.CellRendererText to the combobox. To be used if the combobox
has a gtk.ListStore model with a string as the first column.
"""
text = gtk.CellRendererText()
combobox.pack_start(text, True)
combobox.add_attribute(text, "text", 0)
def is_required_version(version, required_version):
"""Return True if version is higher than or equal to
required_version, False otherwise.
"""
for i, j in zip(version, required_version):
if i > j:
return True
elif i < j:
return False
return True
class KeyringError(Exception):
pass
class KeyringCancelledError(KeyringError):
pass
class KeyringNoMatchError(KeyringError):
pass
class Dialogs:
__special_dialogs = ("menu", "about", "preferences")
__gtk_show_image_ok = is_required_version(gtk.gtk_version, (2, 16, 0))
def __init__(self, parent):
"""Create an instance of Dialogs. Creates a context menu,
and an About dialog, which is added to the menu.
@param parent: The parent applet of the dialogs instance.
@type parent: L{Applet}
"""
self.__parent = parent
self.__register = {}
self.__current = None
self.menu = self.new("menu")
meta_keys = self.__parent.meta.keys()
# Create the About dialog if the applet provides the necessary metadata
if all([key in meta_keys for key in ("name", "author", "copyright-year")]):
about_dialog = self.new("about")
about_item = gtk.ImageMenuItem(_("_About %s") % self.__parent.meta["name"])
if self.__gtk_show_image_ok:
about_item.props.always_show_image = True
about_item.set_image(gtk.image_new_from_stock(gtk.STOCK_ABOUT, gtk.ICON_SIZE_MENU))
self.menu.append(about_item)
about_item.connect("activate", lambda w: self.toggle("about"))
def connect_signals(self, parent):
def popup_menu_cb(widget, event):
self.toggle("menu", once=True, event=event)
parent.connect("context-menu-popup", popup_menu_cb)
def clicked_cb(widget, dialog_name):
if dialog_name in self.__register:
self.toggle(dialog_name)
parent.connect("clicked", clicked_cb, "main")
parent.connect("middle-clicked", clicked_cb, "secondary")
def new(self, dialog, title=None, focus=True):
"""Create a new AWN dialog.
@param dialog: The name to register the dialog under.
@type dialog: C{string}
@param title: The title of the new dialog
@type title: C{string}
@param focus: Whether to force the focus
@type focus: C{bool}
@return: The new menu or dialog
@rtype: C{gtk.Menu}, C{function}, or C{awn.AppletDialog}
"""
if dialog == "menu":
dlog = self.__parent.create_default_menu()
elif dialog == "about":
dlog = self.AboutDialog(self.__parent)
elif dialog == "preferences":
dlog = self.PreferencesDialog(self.__parent)
position = len(self.menu)
if "about" in self.__register:
position = position - 1
prefs_item = gtk.ImageMenuItem(stock_id=gtk.STOCK_PREFERENCES)
if self.__gtk_show_image_ok:
prefs_item.props.always_show_image = True
self.menu.insert(prefs_item, position)
prefs_item.connect("activate", lambda w: self.toggle(
"preferences", "show"))
else:
dlog = awn.Dialog(self.__parent)
self.register(dialog, dlog, focus)
if dialog not in self.__special_dialogs and title:
dlog.set_title(" " + title + " ")
return dlog
def register(self, dialog, dlog, focus=True):
"""Register a dialog.
Once a name has been registered, it cannot be registered again
until the dialog is explicitly unregistered.
@param dialog: The name to use for the dialog.
@type dialog: C{string}
@param dlog: The actual dialog or menu or function.
@type dlog: C{function}, C{gtk.Menu}, or C{awn.AppletDialog}
@param focus: True if the dialog should be hidden when focus is lost, False otherwise.
@type focus: C{bool}
"""
if dialog in self.__register:
raise RuntimeError("Dialog '%s' already registered" % dialog)
if focus and dialog not in self.__special_dialogs and isinstance(dlog, awn.Dialog):
dlog.props.hide_on_unfocus = focus
self.__register[dialog] = dlog
def unregister(self, dialog):
"""Unregister a dialog.
@param dialog: The name to use for the dialog. Must not be equal
to the name of any of the special dialogs.
@type dialog: C{string}
"""
if dialog not in self.__register:
raise RuntimeError("Dialog '%s' not registered" % dialog)
if dialog in self.__special_dialogs:
raise RuntimeError("Unregistering special dialog '%s' is forbidden" % dialog)
if dialog == self.__current:
self.__register[dialog].hide()
self.__current = None
del self.__register[dialog]
def toggle(self, dialog, force="", once=False, event=None):
"""Show or hide a dialog.
@param dialog: The dialog that should be shown.
@type dialog: C{string}
@param force: "Hide" or "Show". Whether to force the hiding or showing
of the dialog in question.
@type force: C{string}
@param once: Only show or hide one dialog. If a dialog is already
opened, and you request that another dialog be toggled, only the
open one is hidden. False by default.
@type once: C{bool}
@param event: The event that triggered the toggle.
@type event: C{gdk.Event}
"""
force = force.lower()
assert force in ("hide", "show", ""), "Force must be \"hide\", \"show\", or \"\""
assert dialog in self.__register, "Dialog '%s' must be registered" % dialog
if dialog == "menu":
self.show_menu(self.__parent, event)
elif dialog == "about":
self.__register["about"].show()
self.__register["about"].present()
else:
if force == "hide" or (self.__register[dialog].is_active() and force != "show"):
self.__register[dialog].hide()
self.__current = None
# Because the dialog is now hidden, show the tooltip again
self.__parent.tooltip.show()
else:
self.__parent.tooltip.hide()
if self.__current is not None and self.__current not in self.__special_dialogs:
current = self.__register[self.__current]
current_was_active = current.is_active()
current.hide()
if current_was_active and once:
self.__current = None
return
self.__register[dialog].show_all()
self.__current = dialog
if dialog == "preferences":
self.__register[dialog].present()
def show_menu(self, parent, event):
self.__register["menu"].show_all()
parent.popup_gtk_menu(self.__register["menu"], event.button, event.time)
def hide(self):
"""Hide the currently visible dialog.
"""
if self.__current is not None:
self.__register[self.__current].hide()
self.__current = None
def is_visible(self, dialog):
"""Return True if the specified dialog is visible, False otherwise.
"""
assert dialog in self.__register, "Dialog '%s' must be registered" % dialog
return self.__register[dialog].is_active()
class BaseDialog:
"""Base class for dialogs. Sets and updates the icon and hides
the dialog instead of letting it being destroyed.
"""
def __init__(self, parent):
self.__parent = parent
if "logo" in parent.meta:
self.update_logo_icon()
parent.connect_size_changed(self.update_logo_icon)
elif "theme" in parent.meta:
self.set_icon_name(parent.meta["theme"])
# Connect some signals to be able to hide the window
self.connect("response", self.response_event)
self.connect("delete_event", gtk.Widget.hide_on_delete)
def response_event(self, widget, response):
if response < 0:
self.hide()
def update_logo_icon(self):
"""Update the logo to be of the same height as the panel.
"""
self.set_icon_from_file(self.__parent.meta["logo"])
class AboutDialog(BaseDialog, gtk.AboutDialog):
"""Applet's About dialog.
"""
def __init__(self, parent):
gtk.AboutDialog.__init__(self)
Dialogs.BaseDialog.__init__(self, parent)
self.__parent = parent
self.set_name(parent.meta["name"])
if "version" in parent.meta:
self.set_version(parent.meta["version"])
if "description" in parent.meta:
self.set_comments(parent.meta["description"])
copyright_info = (parent.meta["copyright-year"], parent.meta["author"])
self.set_copyright("Copyright \xc2\xa9 %s %s" % copyright_info)
if "authors" in parent.meta:
self.set_authors(parent.meta["authors"])
if "artists" in parent.meta:
self.set_artists(parent.meta["artists"])
if "logo" in parent.meta:
self.set_logo(gtk.gdk.pixbuf_new_from_file_at_size( \
parent.meta["logo"], 48, 48))
elif "theme" in parent.meta:
self.set_logo_icon_name(parent.meta["theme"])
class PreferencesDialog(BaseDialog, gtk.Dialog):
"""A Dialog window that has the title "<applet's name> Preferences",
uses the applet's logo as its icon and has a Close button.
"""
def __init__(self, parent):
gtk.Dialog.__init__(self, flags=gtk.DIALOG_NO_SEPARATOR)
Dialogs.BaseDialog.__init__(self, parent)
self.__parent = parent
self.set_resizable(False)
self.set_border_width(5)
# This is a window title, %s is an applet's name.
self.set_title(_("%s Preferences") % parent.meta["name"])
self.add_button(gtk.STOCK_CLOSE, gtk.RESPONSE_CLOSE)
class Tooltip:
def __init__(self, parent):
"""Create a new Tooltip object.
@param parent: The parent applet of the tooltip instance.
@type parent: L{Applet}
"""
self.__parent = parent
self.__tooltip = parent.get_icon().get_tooltip()
self.set(parent.meta["name"])
self.disable_toggle_on_click()
if parent.meta.has_option("no-tooltip"):
self.__tooltip.props.smart_behavior = False
def disable_toggle_on_click(self):
self.__tooltip.props.toggle_on_click = False
def is_visible(self):
return (self.__tooltip.flags() & gtk.VISIBLE) != 0
def show(self):
"""Show the applet tooltip.
"""
self.__tooltip.show()
def hide(self):
"""Hide the applet tooltip.
"""
self.__tooltip.hide()
def set(self, text):
"""Set the applet tooltip.
@param text: The new tooltip text.
@type text: C{string}
"""
self.__parent.set_tooltip_text(text)
def connect_becomes_visible(self, callback):
assert callable(callback)
self.__tooltip.connect("map-event", lambda w, e: callback())
class Icon:
APPLET_SIZE = "applet-size"
def __init__(self, parent):
"""Create a new Icon object.
@param parent: The parent applet of the icon instance.
@type parent: L{Applet}
"""
self.__parent = parent
self.__previous_context = None
self.__has_remove_custom_icon_item = False
# Set the themed icon to set the C{awn.Icons} object
if "theme" in parent.meta:
self.theme(parent.meta["theme"])
def file(self, file, set=True, size=None):
"""Get an icon from a file location.
@param file: The path to the file. Can be relative or absolute.
@type file: C{string}
@param set: Whether to also set the icon. True by default.
@type set: C{bool}
@param size: Width and height of icon.
@type size: C{int}
@return: The resultant pixbuf or None (if C{set} is C{True})
@rtype: C{gtk.gdk.Pixbuf} or C{None}
"""
if file[0] != "/":
file = os.path.join(os.path.abspath(os.path.dirname(___file___)), file)
if size is None:
icon = gtk.gdk.pixbuf_new_from_file(file)
else:
if size is self.__class__.APPLET_SIZE:
size = self.__parent.get_size()
icon = gtk.gdk.pixbuf_new_from_file_at_size(file, size, size)
if set:
self.set(icon)
else:
return icon
def theme(self, name):
"""Set an icon from the default icon theme. The resultant
pixbuf will be returned.
@param name: The name of the theme icon.
@type name: C{string}
"""
self.__parent.set_icon_name(name)
if not self.__has_remove_custom_icon_item:
self.__has_remove_custom_icon_item = True
icon = self.__parent.get_icon()
assert isinstance(icon, awn.ThemedIcon)
item = icon.create_remove_custom_icon_item()
self.__parent.dialog.menu.insert(item, 1)
def set(self, icon):
"""Set a C{gtk.gdk.pixbuf} or C{cairo.Context} as your applet icon.
@param icon: The icon to set your applet icon to.
@type icon: C{gtk.gdk.Pixbuf} or C{cairo.Context}
"""
if isinstance(icon, cairo.Context):
self.__parent.set_icon_context(icon)
if self.__previous_context != icon:
del self.__previous_context
self.__previous_context = icon
else:
self.__parent.set_icon_pixbuf(icon)
def hide(self):
"""Hide the applet's icon.
"""
self.__parent.hide()
class Theme:
def __init__(self, parent):
"""Create a new Theme object.
@param parent: The parent applet of the theme instance.
@type parent: L{Applet}
"""
self.__parent = parent
self.__states = None
self.__icon_state = None
def set_states(self, states_icons):
self.__states, icons = zip(*states_icons.items())
self.__icon_state = None
self.__parent.set_icon_info(self.__states, icons)
def icon(self, state):
if self.__states is None or state not in self.__states:
raise RuntimeError("invalid state")
if state != self.__icon_state:
self.__icon_state = state
self.__parent.set_icon_state(state)
def theme(self, theme):
self.__parent.get_icon().override_gtk_theme(theme)
class Icons:
def __init__(self, parent):
"""Create a new Icons object.
@param parent: The parent applet of the icons instance.
@type parent: L{Applet}
"""
self.__parent = parent
self.__icon_box = awn.IconBox(parent)
parent.add(self.__icon_box)
def update_size():
size = self.__parent.get_size()
for icon in self.__icon_box.get_children():
icon.set_size(size)
parent.connect_size_changed(update_size)
def add(self, icon_name, tooltip_text, context_menu=None):
"""Set an icon from the default icon theme and set the applet
tooltip. Optionally provide a context menu that should be
displayed instead of the applet's standard context menu. The
resultant themed icon will be returned.
@param icon_name: The name of the theme icon.
@type icon_name: C{string}
@param tooltip_text: The new tooltip text.
@type tooltip_text: C{string}
@param context_menu: Optional context menu.
@type context_menu: C{gtk.Menu} or C{None}
@return: The resultant themed icon
@rtype: C{awn.ThemedIcon}
"""
icon = awn.ThemedIcon()
icon.set_info_simple(self.__parent.meta["short"], self.__parent.get_uid(), icon_name)
icon.set_tooltip_text(tooltip_text)
icon.set_size(self.__parent.get_size())
# Callback context menu
if context_menu is None:
def popup_menu_cb(widget, event):
self.__parent.dialog.show_menu(widget, event)
icon.connect("context-menu-popup", popup_menu_cb)
else:
assert isinstance(context_menu, gtk.Menu)
def popup_menu_cb(widget, event, menu):
menu.show_all()
widget.popup_gtk_menu(menu, event.button, event.time)
icon.connect("context-menu-popup", popup_menu_cb, context_menu)
icon.show_all()
self.__icon_box.add(icon)
return icon
def remove(self, icon):
"""Remove the specified icon from the applet. The icon will not
be destroyed.
@param icon: The icon to be removed.
@type icon: C{awn.ThemedIcon}
"""
assert isinstance(icon, awn.ThemedIcon)
self.__icon_box.remove(icon)
def destroy_all(self):
"""Remove and destroy all icons in the applet.
"""
for icon in self.__icon_box.get_children():
icon.destroy()
class Errors:
def __init__(self, parent):
"""Create a new Modules object.
@param parent: The parent applet of the icon instance.
@type parent: L{Applet}
"""
self.__parent = parent
def module(self, scope, name):
"""Tell the user that they need to install a module to use your applet.
This function will attempts to import the module, and if this is not
possible, alert the user. Otherwise, it will call your callback with
the module as the first (and only) argument
@param scope: The dictionary that contains the globals to
import the module into
@type scope: C{dict}
@param name: the name of the module that must be installed.
@type name: C{string}
"""
try:
""" Do not add the module to globals[name], otherwise
awn.check_dependencies() will not show an error dialog. """
scope[name] = __import__(name, scope)
except ImportError:
self.__parent.icon.theme("dialog-error")
self.__parent.tooltip.set("Python module %s not found" % name)
awn.check_dependencies(scope, name)
def set_error_icon_and_click_to_restart(self):
self.__parent.icon.theme("dialog-error")
def crash_applet(widget=None, event=None):
gtk.main_quit()
self.__parent.connect("clicked", crash_applet)
def general(self, error, callback=None, traceback=None):
"""Tell the user that an error has occured.
@param error: the error itself.
@type error: C{string} or C{Exception}
@param callback: The function called when the user closes the dialog
@type callback: C{function}
@param traceback: Formatted traceback, can be copied to clipboard
via button in dialog.
@type traceback: C{str}
"""
assert isinstance(error, Exception) or type(error) in (str, tuple)
if traceback is not None:
traceback = "".join(traceback)[:-1]
args = {"message": "", "url": None}
if isinstance(error, Exception):
error_type = type(error).__name__
error = str(error)
if traceback is not None:
print "\n".join(["-" * 80, traceback, "-" * 80])
summary = "%s in %s: %s" % (error_type, self.__parent.meta["name"], error)
if self.__parent.meta["version"] == __version__:
args["message"] = "If you speak English and know how a bug tracker works, then visit Launchpad and report the bug by following these steps:\n\n" \
+ "1) Paste the error summary text in the 'summary' field\n" \
+ "2) Press Continue and then check whether the bug has already been reported or not. Do NOT add duplicates. Instead comment on the bug report that already exists.\n" \
+ "3) If you continue and report the bug, put the following in the big textarea:\n" \
+ " - exact version of awn-extras\n" \
+ " - operating system name and version\n" \
+ " - the traceback\n" \
+ " - other info requested by the guidelines found below the big textarea\n\n" \
+ "Remember: you must be able to speak English and check regularly whether the developers ask you questions. Do NOT add duplicates, but comment on the existing bug report. You cannot expect a bug to be fixed if you don't provide information.\n\n" \
+ "If you don't think you can meet these conditions, then don't file a bug report."
args["url"] = bug_report_link
else:
args["message"] = "Report this bug at the bug tracker of the %s applet." % self.__parent.meta["name"]
if "bug-report-url" in self.__parent.meta:
args["url"] = self.__parent.meta["bug-report-url"]
else:
error_type = "Error"
if isinstance(error, tuple):
args["message"] = error[1]
error = error[0]
dialog = self.ErrorDialog(self.__parent, error_type, error, **args)
if traceback is not None:
copy_traceback_button = gtk.Button("Copy traceback to clipboard")
copy_traceback_button.set_image(gtk.image_new_from_stock(gtk.STOCK_COPY, gtk.ICON_SIZE_MENU))
dialog.hbox.pack_start(copy_traceback_button, expand=False)
copy_summary_button = gtk.Button("Copy summary to clipboard")
copy_summary_button.set_image(gtk.image_new_from_stock(gtk.STOCK_COPY, gtk.ICON_SIZE_MENU))
dialog.hbox.pack_start(copy_summary_button, expand=False)
dialog.hbox.reorder_child(copy_traceback_button, 0)
dialog.hbox.reorder_child(copy_summary_button, 0)
def clicked_cb(widget, text):
clipboard = gtk.clipboard_get()
clipboard.set_text(text)
clipboard.store()
copy_traceback_button.connect("clicked", clicked_cb, traceback)
copy_summary_button.connect("clicked", clicked_cb, summary)
if callable(callback):
def response_cb(widget, response):
if response < 0:
callback()
dialog.connect("response", response_cb)
dialog.show_all()
class ErrorDialog(Dialogs.BaseDialog, gtk.MessageDialog):
"""A MessageDialog window that shows an error.
"""
def __init__(self, parent, error_type, title, message="", url=None):
gtk.MessageDialog.__init__(self, type=gtk.MESSAGE_ERROR, message_format=title)
Dialogs.BaseDialog.__init__(self, parent)
self.__parent = parent
self.set_skip_taskbar_hint(False)
self.set_title("%s in %s" % (error_type, parent.meta["name"]))
self.hbox = gtk.HBox(spacing=6)
self.action_area.add(self.hbox)
close_button = gtk.Button(stock=gtk.STOCK_CLOSE)
close_button.connect("clicked", lambda w: self.response(gtk.RESPONSE_CLOSE))
self.hbox.add(close_button)
if len(message) > 0:
self.format_secondary_markup(message)
# Make texts non-selectable to stop unhelpful bug reports from stupid users
for i in self.get_message_area().get_children():
i.set_selectable(False)
if url is not None:
alignment = gtk.Alignment(xalign=0.5, xscale=0.0)
alignment.add(gtk.LinkButton(url, url))
self.vbox.pack_start(alignment, expand=False)
class Settings:
__setting_types = (bool, int, long, float, str, list, Color)
def __init__(self, parent):
"""Create a new Settings object. This object
can be used as a dictionary to retrieve and set values of
configuration keys. More importantly, this object provides
the methods get_binder() and load_bindings(), which should
be used to bind keys to their corresponding Gtk+ widgets,
and to make the keys available as GObject properties.
@param parent: The parent applet of the settings instance.
@type parent: L{Applet}
"""
type_parent = type(parent)
if type_parent in (AppletSimple, AppletMultiple, config.Client):
self.__folder = config.GROUP_DEFAULT
elif type_parent is str:
self.__folder = parent
parent = None
self.__client = self.ConfigClient(self.__folder, parent)
def get_binder(self, builder):
"""Return an object that can be used to bind keys to their
corresponding Gtk+ widgets, which are to be retrieved
via the given C{gtk.Builder} instance.
@param key: Instance of C{gtk.Builder}, used to retrieve Gtk+ widgets
@type key: C{gtk.Builder}
@return: An object that provides the method bind() to bind keys
@rtype: C{object}
"""
return self.__client.get_config_binder(builder)
def load_bindings(self, object):
"""Load the bindings by creating a C{gobject.GObject} from the
descriptions given by the given binder object. This object
should be an object that was returned by get_binder(). The
"props" value (instance of C{gobject.GProps}) of the GObject will
be returned.
@param key: An object returned by get_binder()
@type key: C{object}
@return: The "props" value of the created GObject
@rtype: C{gobject.GProps}
"""
return self.__client.load_bindings(object)
def __getitem__(self, key):
"""Get a key from the currect directory.
@param key: A relative path to the correct key
@type key: C{string}
@return: The value of the key
@rtype: C{object}
"""
value = self.__client.get(key)
if type(value) is str and value[:9] == "!pickle;\n":
value = pickle.loads(value[9:])
return value
def __setitem__(self, key, value):
"""Set or create a key from the currect directory.
@param key: A relative path to the correct key
@type key: C{string}
"""
unpickled_value = value
if type(value) not in self.__setting_types:
value = "!pickle;\n%s" % pickle.dumps(value)
elif type(value) is long:
value = int(value)
self.__client.set(key, value)
def __contains__(self, key):
"""Test if a key exists in the current directory.
@param key: A relative path to the correct key
@type key: C{string}
"""
return self.__client.contains(key)
class ConfigClient:
def __init__(self, folder, client=None):
"""Create a new config client.
If the client is an C{Applet}, config instances will
automatically be removed if the applet is deleted.
@param folder: Folder to start with.
@type folder: C{string}
@param client: Applet used to construct a corresponding
config.Client or a preconstructed config.Client
@type client: C{None,Applet,config.Client}
"""
self.__config_object = None
self.__parent = None
type_client = type(client)
if client is None:
self.__client = awn.config_get_default(awn.PANEL_ID_DEFAULT)
elif type_client in (AppletSimple, AppletMultiple):
self.__client = awn.config_get_default_for_applet(client)
def applet_deleted_cb(applet):
self.__client.remove_instance()
client.connect("applet-deleted", applet_deleted_cb)
self.__parent = client
elif type_client is config.Client:
self.__client = client
else:
raise RuntimeError("Parameter 'client' must be None, an Applet, or a config.Client")
self.__folder = folder
def get_config_binder(self, builder):
if not isinstance(builder, gtk.Builder):
raise RuntimeError("Builder must be an instance of gtk.Builder")
return configbinder.get_config_binder(self.__client, self.__folder, builder)
def load_bindings(self, binder):
if self.__config_object is not None:
raise RuntimeError("Configuration object already set")
self.__config_object = binder.create_gobject()
return self.__config_object.props
def set(self, key, value):
"""Set an existing key's value.
@param key: The name of the key, relative to the current folder.
@type key: C{string}
@param value: The value to set the key to.
@type value: C{bool}, C{int}, C{float}, or C{string}
"""
try:
self.__config_object.set_property(key, value)
except:
try:
self.__client.set_value(self.__folder, key, value)
except:
name = self.__parent.meta["name"] if self.__parent is not None else "UNKNOWN"
print "%s: Could not set new value for key '%s'" % (name, key)
raise
def get(self, key):
"""Get an existing key's value.
@param key: The name of the key, relative to the current folder.
@type key: C{string}
@return: The value of the key
@rtype: C{object}
"""
try:
return self.__config_object.get_property(key)
except:
try:
return self.__client.get_value(self.__folder, key)
except:
name = self.__parent.meta["name"] if self.__parent is not None else "UNKNOWN"
print "%s: key '%s' does not exist" % (name, key)
raise
def contains(self, key):
"""Test if the key maps to a value.
@param key: The name of the key, relative to the current folder.
@type key: C{string}
@return: True if the key maps to a value, False otherwise
@rtype: C{bool}
"""
r = False
if self.__config_object is not None:
r = key in gobject.list_properties(self.__config_object)
if r:
return r
try:
self.__client.get_value(self.__folder, key)
except Exception, e:
if str(e).split(":", 1)[0] == "Could not find the key specified":
return False
return True
class Keyring:
def __init__(self, parent=None):
"""Create a new Keyring object. This includes importing the keyring
module and connecting to the daemon.
@param parent: The parent applet of the keyring instance.
@type parent: L{Applet}
"""
if parent is not None:
self.__parent = parent
self.__parent.errors.module(globals(), "gnomekeyring")
else:
awn.check_dependencies(globals(), "gnomekeyring")
if not gnomekeyring.is_available():
raise KeyringError("Keyring not available")
keyring_list = gnomekeyring.list_keyring_names_sync()
if len(keyring_list) == 0:
raise KeyringError("No keyrings available")
try:
gnomekeyring.get_default_keyring_sync()
except gnomekeyring.NoKeyringDaemonError:
raise KeyringError("Had trouble connecting to daemon")
def new(self, keyring=None, name=None, pwd=None, attrs={}, type="generic"):
"""Create a new keyring key.
@param keyring: The keyring holding the key. If omitted, the default
keyring is returned.
@type keyring: C{string}
@param name: The display name of the key. If omitted, an empty key is
returned.
@type name: C{string}
@param pwd: The password stored in the key. If omitted, empty key is
returned.
@type pwd: C{string}
@param attrs: Other attributes stored in the key. By default: {}
@type attrs: C{dict}
@param type: The type of key. By default: "generic"
@type type: C{string}; "generic", "network", or "note"
@return: A new L{Key} object
@rtype: L{Key}
"""
k = self.Key(keyring)
if name and pwd:
k.set(k.keyring, name, pwd, attrs, type)
return k
def from_token(self, keyring, token):
"""Load the key with the given token. Note: If keyring is None, the
default keyring is used. However, this is not recommended.
@param keyring: The keyring holding the key. If omitted, the default
keyring is used.
@type keyring: C{string}
@param token: The password token of the key
@type token: C{int} or C{long}
@return: A new L{Key} object
@rtype: L{Key}
"""
k = self.Key(keyring, token)
keys = gnomekeyring.list_item_ids_sync(k.keyring)
if k.token not in keys:
raise KeyringNoMatchError("Token does not exist")
return k
class Key(object):
def __init__(self, keyring=None, token=0):
"""Create a new key. If keyring is None, the default keyring or
"login" keyring is used. Note: self.keyring will hold the name of
the keyring eventually used. To identify a key unambiguously
keyring name and token are needed.
@param keyring: The keyring holding the key. If omitted, the
default keyring is used.
@type keyring: C{string}
@param token: The token of an already-existing key. Optional.
@type token: C{long}
"""
keyring_list = gnomekeyring.list_keyring_names_sync()
if keyring is None:
keyring = gnomekeyring.get_default_keyring_sync()
if keyring is None:
if "login" in keyring_list:
keyring = "login"
else:
raise KeyringError("No default keyring set")
if keyring not in keyring_list:
raise KeyringNoMatchError("Keyring does not exist")
self.keyring = keyring
self.token = token
def set(self, keyring, name, pwd, attrs={}, type="generic"):
"""Create a new keyring key. Note that if another key
exists with the same name, it will be overwritten.
@param keyring: The keyring holding the key.
@type keyring: C{string}
@param name: The display name of the key.
@type name: C{string}
@param pwd: The password stored in the key.
@type pwd: C{string}
@param attrs: Other attributes stored in the key. By default: {}
@type attrs: C{dict}
@param type: The type of key. By default: "generic"
@type type: C{string}; "generic", "network", or "note"
"""
if type == "network":
type = gnomekeyring.ITEM_NETWORK_PASSWORD
elif type == "note":
type = gnomekeyring.ITEM_NOTE
else: # Generic included
type = gnomekeyring.ITEM_GENERIC_SECRET
try:
self.token = gnomekeyring.item_create_sync(keyring, type, \
name, attrs, pwd, True)
self.keyring = keyring
except gnomekeyring.CancelledError:
self.token = 0
def __unlock(self):
"""Unlock the key's keyring."""
info = gnomekeyring.get_info_sync(self.keyring)
if not info.get_is_locked():
return
# The straight way would be:
# gnomekeyring.unlock_sync(self.keyring, None)
# But this results in a type error, see launchpad bugs #432882.
# We create a dummy key instead, this triggers a user dialog to
# unlock the keyring. We delete the dummy key then immediately.
try:
tmp = gnomekeyring.item_create_sync(self.keyring, \
gnomekeyring.ITEM_GENERIC_SECRET, "awn-extras dummy", \
{"dummy_attr": "none"}, "dummy_pwd", True)
except gnomekeyring.CancelledError:
raise KeyringCancelledError("Operation cancelled by user")
try:
gnomekeyring.item_delete_sync(self.keyring, tmp)
except gnomekeyring.BadArgumentsError:
# Race condition if several applets use this method at once
pass
def delete(self):
"""Delete the current key. Will also reset the token. Note that
"del [Key]" will not delete the key itself; that would be too
destructive. delete() MUST be called manually.
"""
self.__unlock()
gnomekeyring.item_delete_sync(self.keyring, self.token)
self.token = 0
def __get(self):
self.__unlock()
return gnomekeyring.item_get_info_sync(self.keyring, self.token)
def __getAttrs(self):
self.__unlock()
return gnomekeyring.item_get_attributes_sync(self.keyring, self.token)
def __setAttrs(self, a):
self.__unlock()
return gnomekeyring.item_set_attributes_sync(self.keyring, self.token, a)
def __getName(self):
return self.__get().get_display_name()
def __setName(self, name):
info = self.__get()
info.set_display_name(name)
return gnomekeyring.item_set_info_sync(self.keyring, self.token, info)
def __getPass(self):
return self.__get().get_secret()
def __setPass(self, passwd):
info = self.__get()
info.set_secret(passwd)
return gnomekeyring.item_set_info_sync(self.keyring, self.token, info)
attrs = property(__getAttrs, __setAttrs)
"""
@ivar: The other attributes stored in the Key. Can be used like any
property.
"""
name = property(__getName, __setName)
"""
@ivar: The display name of the Key. Can be used like any property
"""
password = property(__getPass, __setPass)
"""
@ivar: The password stored in the Key. Can be used like any property.
"""
class Timing:
"""Provides utilities to register a function to be called periodically
or once after a specified delay.
"""
def __init__(self, parent):
"""Create a new Timing object.
@param parent: The parent applet of the timing instance.
@type parent: L{Applet}
"""
self.__parent = parent
def register(self, callback, seconds, start=True):
"""Register a function to be called periodically.
@param callback: Function to be called.
@type callback: C{function}
@param seconds: Number of seconds within each call.
@type seconds: C{float} or C{int}
@param start: Whether to start the callback automatically
@type start: C{bool}
@return: A L{Callback} object for the C{callback} parameter
@rtype: L{Callback}
"""
def callback_wrapper():
callback()
return True
cb = self.Callback(callback_wrapper, seconds)
if start:
cb.start()
return cb
def delay(self, callback, seconds, start=True):
"""Delay the execution of the given callback.
@param callback: Function
@type callback: C{function}
@param seconds: Number of seconds to delay function call
@type seconds: C{float} or C{int}
@return: A L{Callback} object for the C{callback} parameter
@rtype: L{Callback}
"""
def callback_wrapper():
callback()
return False
cb = self.Callback(callback_wrapper, seconds)
if start:
cb.start()
return cb
class Callback:
"""Wrapper around a callback function to provide ways to start and
stop the function, to change the interval or to test if the callback
is scheduled to run.
"""
def __init__(self, callback, seconds):
"""Create a new C{Callback} object.
@param callback: The function to wrap the Callback around.
@type callback: C{function}
@param seconds: Number of seconds within each call.
@type seconds: C{float} or C{int}
"""
assert seconds > 0.0
self.__callback = callback
self.__seconds = seconds
self.__timer_id = None
def is_started(self):
"""Return True if the callback has been scheduled to run after
each interval, False if the callback is stopped.
@return: True if the callback has been scheduled, False otherwise
@rtype: L{bool}
"""
return self.__timer_id is not None
def start(self):
"""Start executing the callback periodically.
@return: True if the callback was started, False otherwise
@rtype: L{bool}
"""
if self.__timer_id is not None:
return False
if int(self.__seconds) == self.__seconds:
self.__timer_id = glib.timeout_add_seconds(int(self.__seconds), self.__callback)
else:
self.__timer_id = glib.timeout_add(int(self.__seconds * 1000), self.__callback)
return True
def stop(self):
"""Stop the callback from running again if it was scheduled
to run.
@return: True if the callback was stopped, False otherwise
@rtype: L{bool}
"""
if self.__timer_id is None:
return False
glib.source_remove(self.__timer_id)
self.__timer_id = None
return True
def change_interval(self, seconds):
"""Change the interval and restart the callback if it was scheduled
to run.
@param seconds: Number of seconds within each call.
@type seconds: C{float} or C{int}
"""
assert seconds > 0.0
self.__seconds = seconds
# Restart if the callback was scheduled to run
if self.stop():
self.start()
class Notify:
def __init__(self, parent):
"""Create a new Notify object.
@param parent: The parent applet of the notify instance.
@type parent: L{Applet}
"""
self.__parent = parent
awn.check_dependencies(globals(), "pynotify")
pynotify.init(parent.meta["short"])
def __del__(self):
pynotify.uninit()
def send(self, *args, **kwargs):
"""Show a new notification via libnotify.
@param subject: The subject of your message. If blank, "Message from
[applet name]" is used.
@type subject: C{string}
@param body: The main body of your message. Blank by default.
@type body: C{string}
@param icon: The full absolute path to the name of the icon to use.
@type icon: C{string}
@param timeout: Timeout in seconds after which the message closes
@type timeout: C{int}
"""
notification = self.Notification(self.__parent, *args, **kwargs)
notification.show()
def create(self, *args, **kwargs):
"""Return a notification that can be shown via show().
@param subject: The subject of your message. If blank, "Message from
[applet name]" is used.
@type subject: C{string}
@param body: The main body of your message. Blank by default.
@type body: C{string}
@param icon: The full absolute path to the name of the icon to use.
@type icon: C{string}
@param timeout: Timeout in seconds after which the message closes
@type timeout: C{int}
@return: a notification object
@rtype: C{self.Notification}
"""
return self.Notification(self.__parent, *args, **kwargs)
class Notification:
"""An object that manages a libnotify notification.
"""
def __init__(self, parent, subject=None, body="", icon="", timeout=0):
if subject is None:
subject = '"Message From %s"' % parent.meta["name"]
self.__notification = pynotify.Notification(subject, body, icon)
if timeout > 0:
self.__notification.set_timeout(timeout * 1000)
def show(self):
try:
self.__notification.show()
except glib.GError:
pass # Ignore error when no reply has been received
class Meta:
def __init__(self, parent, info={}, options=()):
"""Create a new Meta object.
@param parent: The parent applet of the meta instance.
@type parent: L{Applet}
@param info: Values for the meta dictionary
@type info: C{dict}
@param options: Options to set. Format:
(option", "option", ("option": True|False), ("option":
("suboption", "suboption", ("suboption": True|False), ...)))
"""
assert "name" in info
self.__parent = parent
self.__info = info
self.__options = options
def has_option(self, option):
"""Check if the applet has set a specific option.
@param option: Option to check
@type option: C{str}
"""
return option in self.__options
def __getitem__(self, key):
"""Get a key from the dictionary.
@param key: The key
@type key: C{string}
"""
return self.__info[key]
def keys(self):
"""Return a list of keys from the dictionary.
"""
return self.__info.keys()
def __contains__(self, key):
"""Return True if the dictionary contains the key, False otherwise.
@param key: The key
@type key: C{string}
"""
return key in self.__info
def _getmodule(module):
"""Return a getter that lazy-loads a module, represented by a
single instantiated class.
@param module: The class of the module to initialize and get
@type module: C{class}
"""
instance = {}
def getter(self):
key = (self, module)
if key not in instance:
instance[key] = module(self)
return instance[key]
return property(getter)
class Applet(object):
def __init__(self, meta, options):
"""Create a new instance of the Applet object.
@param meta: The meta information to be passed to the Meta constructor
@type meta: C{dict}
"""
# Create all required child-objects, others will be lazy-loaded
self.meta = Meta(self, meta, options)
def connect_size_changed(self, callback):
self.connect("size-changed", lambda w, e: callback())
settings = _getmodule(Settings)
timing = _getmodule(Timing)
keyring = _getmodule(Keyring)
notification = _getmodule(Notify)
class AppletSimple(awn.AppletSimple, Applet):
def __init__(self, uid, panel_id, meta={}, options=[]):
"""Create a new instance of the AppletSimple object.
@param uid: The unique identifier of the applet
@type uid: C{string}
@param panel_id: Identifier of the panel in which the applet resides.
@type panel_id: C{int}
"""
awn.AppletSimple.__init__(self, meta["short"], uid, panel_id)
Applet.__init__(self, meta, options)
# Create all required child-objects, others will be lazy-loaded
self.tooltip = Tooltip(self)
self.dialog = Dialogs(self)
self.icon = Icon(self)
self.dialog.connect_signals(self)
theme = _getmodule(Theme)
errors = _getmodule(Errors)
class AppletMultiple(awn.Applet, Applet):
def __init__(self, uid, panel_id, meta={}, options=[]):
"""Create a new instance of the AppletMultiple object.
@param uid: The unique identifier of the applet
@type uid: C{string}
@param panel_id: Identifier of the panel in which the applet resides.
@type panel_id: C{int}
"""
awn.Applet.__init__(self, meta["short"], uid, panel_id)
Applet.__init__(self, meta, options)
# Create all required child-objects, others will be lazy-loaded
self.icons = Icons(self)
self.dialog = Dialogs(self)
def init_start(applet_class, meta={}, options=[]):
"""Do the work to create a new applet, and then start the applet.
This makes the icon appear on the bar and starts GTK+.
The callable applet_class parameter is called and given an instance of
C{Applet}. It can then set an icon, tooltip, dialogs, and other things,
before GTK+ starts, which makes the icon appear on the AWN panel.
@param applet_class A callable, used to do some initialization
@type applet_class: C{callable}
@param meta: The meta-information to pass to the constructor
@type meta: C{dict}
@param options: Options to set for the new applet
@type options: C{list} or C{tuple}
@return: The newly created applet.
@rtype: L{Applet}
"""
assert callable(applet_class)
glib.threads_init()
awn.init(sys.argv[1:])
if "multiple-icons" in options:
applet = AppletMultiple(awn.uid, awn.panel_id, meta, options)
else:
applet = AppletSimple(awn.uid, awn.panel_id, meta, options)
try:
applet_class(applet)
except Exception, e:
# TODO don't know what to do for multiple-icons applets
if "multiple-icons" not in options:
applet.errors.set_error_icon_and_click_to_restart()
import traceback
traceback = traceback.format_exception(type(e), e, sys.exc_traceback)
applet.errors.general(e, traceback=traceback, callback=gtk.main_quit)
else:
raise
awn.embed_applet(applet)
gtk.main()
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