tyler/Libation
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Invoke observables directly instead of through event handler

Browse Source
This commit is contained in:
Mbucari 2023-01-11 14:38:12 -07:00
parent 97767dcabb
commit 08bb463560
1 changed files with 22 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
Source/LibationFileManager/PropertyChangeFilter.cs
View File

@ -79,23 +79,36 @@ namespace LibationFileManager
{
private readonly Dictionary<string, List<Delegate>> propertyChangedActions = new();
private readonly Dictionary<string, List<Delegate>> propertyChangingActions = new();
private readonly List<(PropertyChangedEventHandlerEx subscriber, PropertyChangedEventHandlerEx wrapper)> changedFilters = new();
private readonly List<(PropertyChangingEventHandlerEx subscriber, PropertyChangingEventHandlerEx wrapper)> changingFilters = new();
public PropertyChangeFilter()
protected void OnPropertyChanged(string propertyName, object newValue)
{
PropertyChanging += Configuration_PropertyChanging;
PropertyChanged += Configuration_PropertyChanged;
if (propertyChangedActions.ContainsKey(propertyName))
{
//Invoke observables registered for propertyName
foreach (var action in propertyChangedActions[propertyName])
action.DynamicInvoke(newValue);
}
_propertyChanged?.Invoke(this, new(propertyName, newValue));
}
protected void OnPropertyChanging(string propertyName, object oldValue, object newValue)
{
if (propertyChangingActions.ContainsKey(propertyName))
{
//Invoke observables registered for propertyName
foreach (var action in propertyChangingActions[propertyName])
action.DynamicInvoke(oldValue, newValue);
}
_propertyChanging?.Invoke(this, new(propertyName, oldValue, newValue));
}
#region Events
protected void OnPropertyChanged(string propertyName, object newValue)
=> _propertyChanged?.Invoke(this, new(propertyName, newValue));
protected void OnPropertyChanging(string propertyName, object oldValue, object newValue)
=> _propertyChanging?.Invoke(this, new(propertyName, oldValue, newValue));
private PropertyChangedEventHandlerEx _propertyChanged;
private PropertyChangingEventHandlerEx _propertyChanging;
@ -255,28 +268,6 @@ namespace LibationFileManager
throw new InvalidCastException($"{nameof(Configuration)}.{propertyName} is {propertyInfo.PropertyType}, but parameter is {typeof(T)}.");
}
private void Configuration_PropertyChanged(object sender, PropertyChangedEventArgsEx e)
{
if (propertyChangedActions.ContainsKey(e.PropertyName))
{
foreach (var action in propertyChangedActions[e.PropertyName])
{
action.DynamicInvoke(e.NewValue);
}
}
}
private void Configuration_PropertyChanging(object sender, PropertyChangingEventArgsEx e)
{
if (propertyChangingActions.ContainsKey(e.PropertyName))
{
foreach (var action in propertyChangingActions[e.PropertyName])
{
action.DynamicInvoke(e.OldValue, e.NewValue);
}
}
}
private class Unsubscriber : IDisposable
{
private List<Delegate> _observers;