public void CommandBindRaisesCanExecuteChangedOnBind()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
var canExecute1 = new BehaviorSubject <bool>(true);
var cmd1 = ReactiveCommand.Create(() => { }, canExecute1);
vm.Command1 = cmd1;
var disp = view.BindCommand(vm, x => x.Command1, x => x.Command1);
Assert.True(view.Command1.IsEnabled);
// Now change to a disabled cmd
var canExecute2 = new BehaviorSubject <bool>(false);
var cmd2 = ReactiveCommand.Create(() => { }, canExecute2);
vm.Command1 = cmd2;
Assert.False(view.Command1.IsEnabled);
}
public void CommandBindToExplicitEventWireup()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
var fixture = new CommandBinderImplementation();
int invokeCount = 0;
vm.Command2.Subscribe(_ => invokeCount += 1);
var disp = fixture.BindCommand(vm, view, x => x.Command2, x => x.Command2, "MouseUp");
view.Command2.RaiseEvent(new MouseButtonEventArgs(Mouse.PrimaryDevice, 0, MouseButton.Left)
{
RoutedEvent = Image.MouseUpEvent
});
disp.Dispose();
view.Command2.RaiseEvent(new MouseButtonEventArgs(Mouse.PrimaryDevice, 0, MouseButton.Left)
{
RoutedEvent = Image.MouseUpEvent
});
Assert.Equal(1, invokeCount);
}
public void CommandBindRaisesCanExecuteChangedOnBind()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
var fixture = new CommandBinderImplementation();
var canExecute1 = new BehaviorSubject <bool>(true);
var cmd1 = new ReactiveCommand(canExecute1);
vm.Command1 = cmd1;
var disp = fixture.BindCommand(vm, view, x => x.Command1, x => x.Command1);
Assert.True(view.Command1.IsEnabled);
// Now change to a disabled cmd
var canExecute2 = new BehaviorSubject <bool>(false);
var cmd2 = new ReactiveCommand(canExecute2);
vm.Command1 = cmd2;
Assert.False(view.Command1.IsEnabled);
}
public void CommandBindNestedCommandWireup()
{
var vm = new CommandBindViewModel()
{
NestedViewModel = new FakeNestedViewModel()
};
var view = new CommandBindView {
ViewModel = vm
};
var disp = view.BindCommand(vm, m => m.NestedViewModel.NestedCommand, x => x.Command1);
Assert.Equal(vm.NestedViewModel.NestedCommand, view.Command1.Command);
}
public void CommandBindNestedCommandWireup()
{
var vm = new CommandBindViewModel()
{
NestedViewModel = new FakeNestedViewModel()
};
var view = new CommandBindView {
ViewModel = vm
};
var fixture = new CommandBinderImplementation();
var disp = fixture.BindCommand(vm, view, m => m.NestedViewModel.NestedCommand, x => x.Command1);
Assert.Equal(vm.NestedViewModel.NestedCommand, view.Command1.Command);
}
public void CommandBindSetsInitialEnabledState_False()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
var canExecute1 = new BehaviorSubject <bool>(false);
var cmd1 = ReactiveCommand.Create(() => { }, canExecute1);
vm.Command1 = cmd1;
var disp = view.BindCommand(vm, x => x.Command1, x => x.Command1);
Assert.False(view.Command1.IsEnabled);
}
public void CommandBindSetsInitialEnabledState_False()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
var fixture = new CommandBinderImplementation();
var canExecute1 = new BehaviorSubject <bool>(false);
var cmd1 = new ReactiveCommand(canExecute1);
vm.Command1 = cmd1;
var disp = fixture.BindCommand(vm, view, x => x.Command1, x => x.Command1);
Assert.False(view.Command1.IsEnabled);
}
public void CommandBindWithParameterObservable()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
var received = 0;
var cmd = ReactiveCommand.Create <int>(i => { received = i; });
vm.Command1 = cmd;
var value = Observable.Return(42);
var disp = view.BindCommand(vm, x => x.Command1, x => x.Command1, value, nameof(CustomClickButton.CustomClick));
vm.Value = 42;
view.Command1.RaiseCustomClick();
Assert.Equal(42, received);
}
public void CommandBindSetsDisablesCommandWhenCanExecuteChanged()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
var canExecute1 = new BehaviorSubject <bool>(true);
var cmd1 = ReactiveCommand.Create(() => { }, canExecute1);
vm.Command1 = cmd1;
var disp = view.BindCommand(vm, x => x.Command1, x => x.Command1);
Assert.True(view.Command1.IsEnabled);
canExecute1.OnNext(false);
Assert.False(view.Command1.IsEnabled);
}
public void CommandBindWithDelaySetVMParameterNoINPCExpression()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView();
var received = 0;
var cmd = ReactiveCommand.Create <int>(i => { received = i; });
vm.Command1 = cmd;
var disp = view.BindCommand(vm, x => x.Command1, x => x.Command1, x => x.Value, nameof(CustomClickButton.CustomClick));
view.ViewModel = vm;
vm.Value = 42;
view.Command1.RaiseCustomClick();
Assert.Equal(0, received);
vm.Value = 13;
view.Command1.RaiseCustomClick();
Assert.Equal(0, received);
}
public void CommandBindByNameWireup()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
Assert.Null(view.Command1.Command);
var disp = view.BindCommand(vm, x => x.Command1, x => x.Command1);
Assert.Equal(vm.Command1, view.Command1.Command);
var newCmd = ReactiveCommand.Create(() => { });
vm.Command1 = newCmd;
Assert.Equal(newCmd, view.Command1.Command);
disp.Dispose();
Assert.Null(view.Command1.Command);
}
public void CommandBindByNameWireup()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
var fixture = new CommandBinderImplementation();
Assert.Null(view.Command1.Command);
var disp = fixture.BindCommand(vm, view, x => x.Command1, x => x.Command1);
Assert.Equal(vm.Command1, view.Command1.Command);
var newCmd = new ReactiveCommand();
vm.Command1 = newCmd;
Assert.Equal(newCmd, view.Command1.Command);
disp.Dispose();
Assert.Null(view.Command1.Command);
}
public void CommandBindSetsDisablesCommandWhenCanExecuteChanged()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView()
{
ViewModel = vm
};
var fixture = new CommandBinderImplementation();
var canExecute1 = new BehaviorSubject <bool>(true);
var cmd1 = new ReactiveCommand(canExecute1);
vm.Command1 = cmd1;
var disp = fixture.BindCommand(vm, view, x => x.Command1, x => x.Command1);
Assert.True(view.Command1.IsEnabled);
canExecute1.OnNext(false);
Assert.False(view.Command1.IsEnabled);
}