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""" Manages a collection of action sets. """
# Enthought library imports.
from enthought.traits.api import HasTraits, List
# Local imports.
from action_set import ActionSet
class ActionSetManager(HasTraits):
""" Manages a collection of action sets. """
#### 'ActionSetManager' interface #########################################
# The action sets that this manager manages.
action_sets = List(ActionSet)
###########################################################################
# 'ActionSetManager' interface.
###########################################################################
def get_actions(self, root):
""" Return all action definitions for a root. """
return self._get_items(self.action_sets, 'actions', root)
def get_groups(self, root):
""" Return all group definitions for a root. """
return self._get_items(self.action_sets, 'groups', root)
def get_menus(self, root):
""" Return all menu definitions for a root. """
return self._get_items(self.action_sets, 'menus', root)
def get_tool_bars(self, root):
""" Return all tool bar definitions for a root. """
return self._get_items(self.action_sets, 'tool_bars', root)
###########################################################################
# 'Private' interface.
###########################################################################
def _get_items(self, action_sets, attribute_name, root):
""" Return all actions, groups or menus for a particular root.
e.g. To get all of the groups::
self._get_items(action_sets, 'groups', root)
"""
items = []
for action_set in action_sets:
for item in getattr(action_set, attribute_name):
if self._get_root(item.path, action_set.aliases) == root:
items.append(item)
# fixme: Hacky, but the model needs to maintain the
# action set that contributed the item.
item._action_set_ = action_set
# fixme: Even hackier if this is a menu then we need to
# tag the action set onto all of the groups.
if attribute_name in ['menus', 'toolbars']:
for group in item.groups:
group._action_set_ = action_set
return items
def _get_root(self, path, aliases):
""" Return the effective root for a path.
If the first component of the path matches an alias, then we return
the value of the alias.
e.g. If the aliases are::
{'MenuBar' : 'enthought.envisage.ui.workbench.menubar'}
and the path is::
'MenuBar/File/New'
Then the effective root is::
'enthought.envisage.ui.workbench.menubar'
If the first component of the path does *not* match an alias, then it
is returned as is.
e.g. If the aliases are::
{'ToolBar' : 'enthought.envisage.ui.workbench.toolbar'}
and the path is::
'MenuBar/File/New'
Then the effective root is::
'MenuBar'
"""
components = path.split('/')
if components[0] in aliases:
root = aliases[components[0]]
else:
root = components[0]
return root
#### EOF ######################################################################
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