attempt to fix bug 768495

Fixes: https://launchpad.net/bugs/768495
This commit is contained in:
Andreas Preikschat 2011-12-03 15:38:30 +01:00
parent a5a2b0a881
commit eb121abb12

View File

@ -188,6 +188,7 @@ class ActionList(object):
actions or categories.
"""
instance = None
action_map = {}
def __init__(self):
self.categories = CategoryList()
@ -226,17 +227,41 @@ class ActionList(object):
self.categories[category].actions.append(action)
else:
self.categories[category].actions.add(action, weight)
if category is None:
# Stop here, as this action is not configurable.
return
# Load the shortcut from the config.
settings = QtCore.QSettings()
settings.beginGroup(u'shortcuts')
shortcuts = settings.value(action.objectName(),
QtCore.QVariant(action.shortcuts())).toStringList()
settings.endGroup()
if not shortcuts:
action.setShortcuts([])
return
shortcuts = map(unicode, shortcuts)
# Check the alternate shortcut first, to avoid problems when the
# alternate shortcut becomes the primary shortcut after removing the
# (initial) primary shortcut due to confllicts.
if len(shortcuts) == 2:
existing_actions = ActionList.action_map.get(shortcuts[1], [])
# Check for conflicts with other actions considering the shortcut
# context.
if self._shortcut_available(existing_actions, action):
actions = ActionList.action_map.get(shortcuts[1], [])
actions.append(action)
ActionList.action_map[shortcuts[1]] = actions
else:
shortcuts.remove(shortcuts[1])
# Check the primary shortcut.
existing_actions = ActionList.action_map.get(shortcuts[0], [])
# Check for conflicts with other actions considering the shortcut
# context.
if self._shortcut_available(existing_actions, action):
actions = ActionList.action_map.get(shortcuts[0], [])
actions.append(action)
ActionList.action_map[shortcuts[0]] = actions
else:
shortcuts.remove(shortcuts[0])
action.setShortcuts(
[QtGui.QKeySequence(shortcut) for shortcut in shortcuts])
settings.endGroup()
def remove_action(self, action, category=None):
"""
@ -279,6 +304,30 @@ class ActionList(object):
return
self.categories.add(name, weight)
def _shortcut_available(self, existing_actions, action):
"""
Checks if the given ``action`` may use its assigned shortcut(s) or not.
Returns ``True`` or ``False.
``existing_actions``
A list of actions which already use a particular shortcut.
``action``
The action which wants to use a particular shortcut.
"""
for existing_action in existing_actions:
if action is existing_action:
continue
if existing_action.parent() is action.parent():
return False
if existing_action.shortcutContext() in [QtCore.Qt.WindowShortcut,
QtCore.Qt.ApplicationShortcut]:
return False
if action.shortcutContext() in [QtCore.Qt.WindowShortcut,
QtCore.Qt.ApplicationShortcut]:
return False
return True
class CategoryOrder(object):
"""