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offer combined appended + inserted event

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This commit is contained in:
Jakob Ketterl 2023-05-06 01:54:49 +02:00
parent c673f4bb47
commit ec1c3c17ad
1 changed files with 17 additions and 12 deletions
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29
owrx/active/list/__init__.py
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@ -15,24 +15,28 @@ class ActiveListIndexUpdated(ActiveListChange):
self.newValue = newValue
class ActiveListIndexAppended(ActiveListChange):
class ActiveListIndexAdded(ActiveListChange):
def __init__(self, index: int, newValue):
self.index = index
self.newValue = newValue
# not sure if differentiation between append and insert is necessary, but we'll offer it for now
# most cases will probably be happy with ActiveListIndexAdded above
class ActiveListIndexAppended(ActiveListIndexAdded):
pass
class ActiveListIndexInserted(ActiveListIndexAdded):
pass
class ActiveListIndexDeleted(ActiveListChange):
def __init__(self, index: int, oldValue):
self.index = index
self.oldValue = oldValue
class ActiveListIndexInserted(ActiveListChange):
def __init__(self, index: int, newValue):
self.index = index
self.newValue = newValue
class ActiveListListener(ABC):
@abstractmethod
def onListChange(self, changes: list[ActiveListChange]):
@ -48,8 +52,8 @@ class ActiveListTransformationListener(ActiveListListener):
for change in changes:
if isinstance(change, ActiveListIndexUpdated):
self.target[change.index] = self.transformation(change.newValue)
elif isinstance(change, ActiveListIndexAppended):
self.target.append(self.transformation(change.newValue))
elif isinstance(change, ActiveListIndexAdded):
self.target.insert(change.index, self.transformation(change.newValue))
elif isinstance(change, ActiveListIndexDeleted):
del self.target[change.index]
@ -62,10 +66,11 @@ class ActiveListFilterListener(ActiveListListener):
def onListChange(self, changes: list[ActiveListChange]):
for change in changes:
if isinstance(change, ActiveListIndexAppended):
if isinstance(change, ActiveListIndexAdded):
if self.filter(change.newValue):
self.target.append(change.newValue)
self.keyMap.append(len(self.target) - 1)
idx = len([x for x in self.keyMap if x < change.index])
self.target.insert(idx, change.newValue)
self.keyMap.insert(idx, change.index)
elif isinstance(change, ActiveListIndexUpdated):
if change.index in self.keyMap and not self.filter(change.newValue):
idx = self.keyMap.index(change.index)