rename mvc at lvc

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diff --git a/lvc/widgets/gtk/gtkmenus.py b/lvc/widgets/gtk/gtkmenus.py
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+++ b/lvc/widgets/gtk/gtkmenus.py
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+# @Base: Miro - an RSS based video player application
+# Copyright (C) 2011
+# Participatory Culture Foundation
+#
+# 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
+#
+# In addition, as a special exception, the copyright holders give
+# permission to link the code of portions of this program with the OpenSSL
+# library.
+#
+# You must obey the GNU General Public License in all respects for all of
+# the code used other than OpenSSL. If you modify file(s) with this
+# exception, you may extend this exception to your version of the file(s),
+# but you are not obligated to do so. If you do not wish to do so, delete
+# this exception statement from your version. If you delete this exception
+# statement from all source files in the program, then also delete it here.
+
+"""gtkmenus.py -- Manage menu layout."""
+
+import gtk
+
+from lvc.widgets import app
+
+import base
+import keymap
+import wrappermap
+
+def _setup_accel(widget, name, shortcut=None):
+    """Setup accelerators for a menu item.
+
+    This method sets an accel path for the widget and optionally connects a
+    shortcut to that accel path.
+    """
+    # The GTK docs say that we should set the path using this form:
+    # <Window-Name>/Menu/Submenu/MenuItem
+    # ...but this is hard to do because we don't yet know what window/menu
+    # this menu item is going to be added to.  gtk.Action and gtk.ActionGroup
+    # don't follow the above suggestion, so we don't need to either.
+    path = "<MiroActions>/MenuBar/%s" % name
+    widget.set_accel_path(path)
+    if shortcut is not None:
+        accel_string = keymap.get_accel_string(shortcut)
+        key, mods = gtk.accelerator_parse(accel_string)
+        if gtk.accel_map_lookup_entry(path) is None:
+            gtk.accel_map_add_entry(path, key, mods)
+        else:
+            gtk.accel_map_change_entry(path, key, mods, True)
+
+# map menu names to GTK stock ids.
+_STOCK_IDS = {
+    "SaveItem": gtk.STOCK_SAVE,
+    "CopyItemURL": gtk.STOCK_COPY,
+    "RemoveItems": gtk.STOCK_REMOVE,
+    "StopItem": gtk.STOCK_MEDIA_STOP,
+    "NextItem": gtk.STOCK_MEDIA_NEXT,
+    "PreviousItem": gtk.STOCK_MEDIA_PREVIOUS,
+    "PlayPauseItem": gtk.STOCK_MEDIA_PLAY,
+    "Open": gtk.STOCK_OPEN,
+    "EditPreferences": gtk.STOCK_PREFERENCES,
+    "Quit": gtk.STOCK_QUIT,
+    "Help": gtk.STOCK_HELP,
+    "About": gtk.STOCK_ABOUT,
+    "Translate": gtk.STOCK_EDIT
+}
+try:
+    _STOCK_IDS['Fullscreen'] = gtk.STOCK_FULLSCREEN
+except AttributeError:
+    # fullscreen not available on all GTK versions
+    pass
+
+class MenuItemBase(base.Widget):
+    """Base class for MenuItem and Separator."""
+
+    def show(self):
+        """Show this menu item."""
+        self._widget.show()
+
+    def hide(self):
+        """Hide and disable this menu item."""
+        self._widget.hide()
+
+    def remove_from_parent(self):
+        """Remove this menu item from it's parent Menu."""
+        parent_menu = self._widget.get_parent()
+        if parent_menu is None:
+            return
+        parent_menu_item = parent_menu.get_attach_widget()
+        if parent_menu_item is None:
+            return
+        parent_menu_item.remove(self._widget)
+
+    def _set_accel_group(self, accel_group):
+        # menu items don't care about the accel group, their parent Menu
+        # handles it for them
+        pass
+
+class MenuItem(MenuItemBase):
+    """Single item in the menu that can be clicked
+
+    :param label: The label it has (must be internationalized)
+    :param name: String identifier for this item
+    :param shortcut: Shortcut object to use
+
+    Signals:
+    - activate: menu item was clicked
+
+    Example:
+
+    >>> MenuItem(_("Preferences"), "EditPreferences")
+    >>> MenuItem(_("Cu_t"), "ClipboardCut", Shortcut("x", MOD))
+    >>> MenuItem(_("_Update Podcasts and Library"), "UpdatePodcasts",
+    ...          (Shortcut("r", MOD), Shortcut(F5)))
+    >>> MenuItem(_("_Play"), "PlayPauseItem",
+    ...          play=_("_Play"), pause=_("_Pause"))
+    """
+
+    def __init__(self, label, name, shortcut=None):
+        MenuItemBase.__init__(self)
+        self.name = name
+        self.set_widget(self.make_widget(label))
+        self.activate_id = self.wrapped_widget_connect('activate',
+                                                       self._on_activate)
+        self._widget.show()
+        self.create_signal('activate')
+        _setup_accel(self._widget, self.name, shortcut)
+
+    def _on_activate(self, menu_item):
+        self.emit('activate')
+        gtk_menubar = self._find_menubar()
+        if gtk_menubar is not None:
+            try:
+                menubar = wrappermap.wrapper(gtk_menubar)
+            except KeyError:
+                logging.exception('menubar activate: '
+                                  'no wrapper for gtbbk.MenuBar')
+            else:
+                menubar.emit('activate', self.name)
+
+    def _find_menubar(self):
+        """Find the MenuBar that this menu item is attached to."""
+        menu_item = self._widget
+        while True:
+            parent_menu = menu_item.get_parent()
+            if isinstance(parent_menu, gtk.MenuBar):
+                return parent_menu
+            elif parent_menu is None:
+                return None
+            menu_item = parent_menu.get_attach_widget()
+            if menu_item is None:
+                return None
+
+    def make_widget(self, label):
+        """Create the menu item to use for this widget.
+
+        Subclasses will probably want to override this.
+        """
+        if self.name in _STOCK_IDS:
+            mi = gtk.ImageMenuItem(stock_id=_STOCK_IDS[self.name])
+            mi.set_label(label)
+            return mi
+        else:
+            return gtk.MenuItem(label)
+
+    def set_label(self, new_label):
+        self._widget.set_label(new_label)
+
+    def get_label(self):
+        self._widget.get_label()
+
+class CheckMenuItem(MenuItem):
+    """MenuItem that toggles on/off"""
+
+    def make_widget(self, label):
+        return gtk.CheckMenuItem(label)
+
+    def set_state(self, active):
+        # prevent the activate signal from fireing in response to us manually
+        # changing a value
+        self._widget.handler_block(self.activate_id)
+        if active is not None:
+            self._widget.set_inconsistent(False)
+            self._widget.set_active(active)
+        else:
+            self._widget.set_inconsistent(True)
+            self._widget.set_active(False)
+        self._widget.handler_unblock(self.activate_id)
+
+    def get_state(self):
+        return self._widget.get_active()
+
+class RadioMenuItem(CheckMenuItem):
+    """MenuItem that toggles on/off and is grouped with other RadioMenuItems.
+    """
+
+    def make_widget(self, label):
+        widget = gtk.RadioMenuItem()
+        widget.set_label(label)
+        return widget
+
+    def set_group(self, group_item):
+        self._widget.set_group(group_item._widget)
+
+    def remove_from_group(self):
+        """Remove this RadioMenuItem from its current group."""
+        self._widget.set_group(None)
+
+    def _on_activate(self, menu_item):
+        # GTK sends the activate signal for both the radio button that's
+        # toggled on and the one that gets turned off.  Just emit our signal
+        # for the active radio button.
+        if self.get_state():
+            MenuItem._on_activate(self, menu_item)
+
+class Separator(MenuItemBase):
+    """Separator item for menus"""
+
+    def __init__(self):
+        MenuItemBase.__init__(self)
+        self.set_widget(gtk.SeparatorMenuItem())
+        self._widget.show()
+        # Set name to be None just so that it has a similar API to other menu
+        # items.
+        self.name = None
+
+class MenuShell(base.Widget):
+    """Common code shared between Menu and MenuBar.
+
+    Subclasses must define a _menu attribute that's a gtk.MenuShell subclass.
+    """
+
+    def __init__(self):
+        base.Widget.__init__(self)
+        self._accel_group = None
+        self.children = []
+
+    def append(self, menu_item):
+        """Add a menu item to the end of this menu."""
+        self.children.append(menu_item)
+        menu_item._set_accel_group(self._accel_group)
+        self._menu.append(menu_item._widget)
+
+    def insert(self, index, menu_item):
+        """Insert a menu item in the middle of this menu."""
+        self.children.insert(index, menu_item)
+        menu_item._set_accel_group(self._accel_group)
+        self._menu.insert(menu_item._widget, index)
+
+    def remove(self, menu_item):
+        """Remove a child menu item.
+
+        :raises ValueError: menu_item is not a child of this menu
+        """
+        self.children.remove(menu_item)
+        self._menu.remove(menu_item._widget)
+        menu_item._set_accel_group(None)
+
+    def index(self, name):
+        """Get the position of a menu item in this list.
+
+        :param name: name of the menu
+        :returns: index of the menu item, or -1 if not found.
+        """
+        for i, menu_item in enumerate(self.children):
+            if menu_item.name == name:
+                return i
+        return -1
+
+    def get_children(self):
+        """Get the child menu items in order."""
+        return list(self.children)
+
+    def find(self, name):
+        """Search for a menu or menu item
+
+        This method recursively searches the entire menu structure for a Menu
+        or MenuItem object with a given name.
+
+        :raises KeyError: name not found
+        """
+        found = self._find(name)
+        if found is None:
+            raise KeyError(name)
+        else:
+            return found
+
+    def _find(self, name):
+        """Low-level helper-method for find().
+
+        :returns: found menu item or None.
+        """
+        for menu_item in self.get_children():
+            if menu_item.name == name:
+                return menu_item
+            if isinstance(menu_item, MenuShell):
+                submenu_find = menu_item._find(name)
+                if submenu_find is not None:
+                    return submenu_find
+        return None
+
+class Menu(MenuShell):
+    """A Menu holds a list of MenuItems and Menus.
+
+    Example:
+    >>> Menu(_("P_layback"), "Playback", [
+    ...      MenuItem(_("_Foo"), "Foo"),
+    ...      MenuItem(_("_Bar"), "Bar")
+    ...      ])
+    >>> Menu("", "toplevel", [
+    ...     Menu(_("_File"), "File", [ ... ])
+    ...     ])
+    """
+
+    def __init__(self, label, name, child_items):
+        MenuShell.__init__(self)
+        self.set_widget(gtk.MenuItem(label))
+        self._widget.show()
+        self.name = name
+        # set up _menu for the MenuShell code
+        self._menu = gtk.Menu()
+        _setup_accel(self._menu, self.name)
+        self._widget.set_submenu(self._menu)
+        for item in child_items:
+            self.append(item)
+
+    def show(self):
+        """Show this menu."""
+        self._widget.show()
+
+    def hide(self):
+        """Hide this menu."""
+        self._widget.hide()
+
+    def _set_accel_group(self, accel_group):
+        """Set the accel group for this widget.
+
+        Accel groups get created by the MenuBar.  Whenever a menu or menu item
+        is added to that menu bar, the parent calls _set_accel_group() to give
+        the accel group to the child.
+        """
+        if accel_group == self._accel_group:
+            return
+        self._menu.set_accel_group(accel_group)
+        self._accel_group = accel_group
+        for child in self.children:
+            child._set_accel_group(accel_group)
+
+class MenuBar(MenuShell):
+    """Displays a list of Menu items.
+
+    Signals:
+
+    - activate(menu_bar, name): a menu item was activated
+    """
+
+    def __init__(self):
+        """Create a new MenuBar
+
+        :param name: string id to use for our action group
+        """
+        MenuShell.__init__(self)
+        self.create_signal('activate')
+        self.set_widget(gtk.MenuBar())
+        self._widget.show()
+        self._accel_group = gtk.AccelGroup()
+        # set up _menu for the MenuShell code
+        self._menu = self._widget
+
+    def get_accel_group(self):
+        return self._accel_group
+
+class MainWindowMenuBar(MenuBar):
+    """MenuBar for the main window.
+
+    This gets installed into app.widgetapp.menubar on GTK.
+    """
+    def add_initial_menus(self, menus):
+        """Add the initial set of menus.
+
+        We modify the menu structure slightly for GTK.
+        """
+        for menu in menus:
+            self.append(menu)
+        self._modify_initial_menus()
+
+    def _modify_initial_menus(self):
+        """Update the portable root menu with GTK-specific stuff."""
+        # on linux, we don't have a CheckVersion option because
+        # we update with the package system.
+        #this_platform = app.config.get(prefs.APP_PLATFORM)
+        #if this_platform == 'linux':
+        #    self.find("CheckVersion").remove_from_parent()
+        #app.video_renderer.setup_subtitle_encoding_menu()