public ProgressWindow(Window owner = null)
{
InitializeComponent();
if (owner != null)
{
Owner = owner;
}
DataContext = Data;
PropertyChangedObject.RegisterWindow(this);
Loaded += (sender, args) => { DataContext = Data; };
}
public MainWindow()
{
ModifyProvider = new DelegateInteractionProvider <IModifyObjectInteraction>(() => new ModifyObjectWindow(this));
InitializeComponent();
PropertyChangedObject.RegisterWindow(this);
DataContextChanged += OnDataContextChanged;
DataContext = new MainWindowViewModel();
_pageViewerFactory = new UniqueWindowFactory <PageCollectionViewerWindow>(() => new PageCollectionViewerWindow((MainWindowViewModel)DataContext), this, hideInsteadOfClose: true);
Canvas.DefaultDrawingAttributes.FitToCurve = true;
ContentRendered += (_, __) =>
{
Dispatcher.BeginInvoke(new Action(() =>
{
foreach (var error in App.ErrorQueue)
{
MessageBox.Show(this, error, ErrorResources.Error, MessageBoxButton.OK, MessageBoxImage.Error);
}
}), DispatcherPriority.ApplicationIdle);
};
}
public void TestMethod1()
{
var propertyChanges = 0;
var collectionChanges = 0;
// CASE 0, DUMMY CASE
var dummyObserver = new TestObserver <int>();
var dummyList = new List <int>();
dummyObserver.MyCollection = dummyList;
dummyList.Add(10);
Assert.IsTrue(dummyObserver.CollectionChangedCount == 0 && dummyObserver.PropertyChangedCount == 0);
// CASE 1, ANOTHER DUMMY CASE
var propertyChangedObserver = new TestObserver <PropertyChangedObject>();
var caseOneCollection = new List <PropertyChangedObject>();
propertyChangedObserver.MyCollection = caseOneCollection;
var o1 = new PropertyChangedObject();
caseOneCollection.Add(o1);
o1.Value = 10;
// it ignores both
// because the collection does not implements INCC
// the add occurs after we assigned the instance to propertyChangedObserver.MyCollection
// sadly we can not detect this without consuming unnecessary resources.
Assert.IsTrue(propertyChangedObserver.CollectionChangedCount == 0 && propertyChangedObserver.PropertyChangedCount == 0);
// CASE 2, MUST DETECT BOTH: INCC, IPC
var caseTwoCollection = new ObservableCollection <PropertyChangedObject>();
propertyChangedObserver.MyCollection = caseTwoCollection;
var o2 = new PropertyChangedObject();
caseTwoCollection.Add(o2);
collectionChanges++;
o2.Value = 10;
propertyChanges++;
// o1 change must be ignored
o1.Value = 30;
Assert.IsTrue(
propertyChangedObserver.CollectionChangedCount == collectionChanges &&
propertyChangedObserver.PropertyChangedCount == propertyChanges);
// CASE 3, INSTANCE CHANGED.
var caseThreeCollection = new ObservableCollection <PropertyChangedObject>();
propertyChangedObserver.MyCollection = caseThreeCollection;
var o3 = new PropertyChangedObject();
caseThreeCollection.Add(o3);
collectionChanges++;
var o4 = new PropertyChangedObject();
caseThreeCollection.Add(o4);
collectionChanges++;
o3.Value = 5;
propertyChanges++;
o3.Value = 8;
propertyChanges++;
o4.Value = 3;
propertyChanges++;
// should ignore the next changes
caseTwoCollection.Add(new PropertyChangedObject());
o1.Value = 100;
o2.Value = 100;
Assert.IsTrue(
propertyChangedObserver.CollectionChangedCount == collectionChanges &&
propertyChangedObserver.PropertyChangedCount == propertyChanges);
// CASE 4, IT MUST STOP LISTENING WHEN WE REMOVE THE OBJECT FROM THE COLLECTION
caseThreeCollection.Remove(o4);
collectionChanges++;
o4.Value = 60;
o4.Value = 20;
o4.Value = 40;
Assert.IsTrue(
propertyChangedObserver.CollectionChangedCount == collectionChanges &&
propertyChangedObserver.PropertyChangedCount == propertyChanges);
// CASE 5, BUT IT MUST BE LISTENING FOR THE OBJECTS THAT ARE INCLUDED IN THE COLLECTION
o3.Value = 30;
propertyChanges++;
o3.Value = 40;
propertyChanges++;
o3.Value = 50;
propertyChanges++;
Assert.IsTrue(
propertyChangedObserver.CollectionChangedCount == collectionChanges &&
propertyChangedObserver.PropertyChangedCount == propertyChanges);
// CASE 5, REPLACEMENT
var o5 = new PropertyChangedObject();
caseThreeCollection[0] = o5;
collectionChanges++;
// it must stop listening for changes in o3 (index 0)
o3.Value = 1;
o3.Value = 2;
o3.Value = 3;
o3.Value = 4;
// and now it should listen for changes in o5;
o5.Value = 1;
propertyChanges++;
o5.Value = 2;
propertyChanges++;
Assert.IsTrue(
propertyChangedObserver.CollectionChangedCount == collectionChanges &&
propertyChangedObserver.PropertyChangedCount == propertyChanges);
// CASE 6, COLLECTION CLEARED.
caseThreeCollection.Clear();
collectionChanges++;
// must not count the following changes..
o5.Value = 2;
o5.Value = 2;
o5.Value = 2;
Assert.IsTrue(
propertyChangedObserver.CollectionChangedCount == collectionChanges &&
propertyChangedObserver.PropertyChangedCount == propertyChanges);
}
