protected virtual void HideDesignerOverlay(UIComponentContainer container)
{
Container = null;
var layer = AdornerLayer.GetAdornerLayer(container);
if (layer == null)
{
return;
}
var adorners = layer.GetAdorners(container);
if (adorners == null)
{
return;
}
foreach (var adorner in adorners)
{
layer.Remove(adorner);
if (adorner is UIComponentDesignerAdorner designerAdorner)
{
designerAdorner.Closed -= this.OnClosed;
designerAdorner.Dispose();
}
}
}
protected virtual void AddContainer(HorizontalAlignment alignment, GridLength width, UIComponentConfiguration component)
{
var margin = default(Thickness);
if (this.Grid.ColumnDefinitions.Count > 0)
{
margin = new Thickness(2, 0, 0, 0);
}
this.Grid.ColumnDefinitions.Add(new ColumnDefinition()
{
Width = width
});
var container = new UIComponentContainer()
{
Component = component,
Margin = margin,
HorizontalAlignment = alignment,
};
//TODO: Don't like anonymous event handlers, they can't be unsubscribed.
container.ComponentChanged += (sender, e) =>
{
this.UpdateComponent(component, container.Component);
};
Grid.SetColumn(container, this.Grid.ColumnDefinitions.Count - 1);
this.Grid.Children.Add(container);
}
public Task SetAlignment(UIComponentContainer container, string alignment)
{
return(Windows.Invoke(() =>
{
if (container.Component == null)
{
container.Component = new UIComponentConfiguration();
}
container.Component.MetaData.AddOrUpdate(Alignment, alignment);
this.UpdateChildren();
}));
}
public Task SetFill(UIComponentContainer container)
{
return(Windows.Invoke(() =>
{
if (container.Component == null)
{
container.Component = new UIComponentConfiguration();
}
container.Component.MetaData.AddOrUpdate(HorizontalAlignment, Fill);
container.Component.MetaData.AddOrUpdate(VerticalAlignment, Fill);
this.UpdateChildren();
}));
}
protected virtual void ShowDesignerOverlay(UIComponentContainer container)
{
Container = container;
var layer = AdornerLayer.GetAdornerLayer(container);
if (layer == null)
{
return;
}
var adorner = new UIComponentDesignerAdorner(container);
adorner.Closed += this.OnClosed;
layer.Add(adorner);
}
public Task Add(UIComponentContainer container)
{
return(Windows.Invoke(() =>
{
var component = new UIComponentConfiguration();
var index = this.Component.Children.IndexOf(container.Component);
var alignment = default(string);
if (container.Component.MetaData.TryGetValue(Alignment, out alignment))
{
component.MetaData.TryAdd(Alignment, alignment);
}
this.Component.Children.Insert(index + 1, component);
this.UpdateChildren();
}));
}
protected virtual void AddComponent(UIComponentConfiguration component, string horizontalAlignment, string verticalAlignment)
{
var container = new UIComponentContainer()
{
Component = component,
HorizontalAlignment = (HorizontalAlignment)Enum.Parse(typeof(HorizontalAlignment), horizontalAlignment),
VerticalAlignment = (VerticalAlignment)Enum.Parse(typeof(VerticalAlignment), verticalAlignment),
};
//TODO: Don't like anonymous event handlers, they can't be unsubscribed.
container.ComponentChanged += (sender, e) =>
{
this.UpdateComponent(component, container.Component);
};
this.Grid.Children.Add(container);
}
public Task Remove(UIComponentContainer container)
{
return(Windows.Invoke(() =>
{
for (var a = 0; a < this.Component.Children.Count; a++)
{
if (!object.ReferenceEquals(this.Component.Children[a], container.Component))
{
continue;
}
this.Component.Children.RemoveAt(a);
this.UpdateChildren();
return;
}
//TODO: Component was not found.
throw new NotImplementedException();
}));
}
public UIComponentRoot()
{
var container = new UIComponentContainer();
//TODO: Should we create this binding now or on Loaded?
container.SetBinding(
UIComponentContainer.ComponentProperty,
new Binding()
{
Source = this,
Path = new PropertyPath(nameof(this.Component))
}
);
this.Content = container;
lock (Instances)
{
Instances.Add(new WeakReference <UIComponentRoot>(this));
}
OnActiveChanged(this);
}
protected virtual Task Move(UIComponentContainer container, Func <int, int> step)
{
return(Windows.Invoke(() =>
{
var containerAlignment = default(string);
if (!container.Component.MetaData.TryGetValue(Alignment, out containerAlignment))
{
//Align left by default.
containerAlignment = AlignLeft;
}
for (var a = 0; a < this.Component.Children.Count; a++)
{
if (!object.ReferenceEquals(this.Component.Children[a], container.Component))
{
continue;
}
for (var b = step(a); b >= 0 && b < this.Component.Children.Count; b = step(b))
{
var childAlignment = default(string);
if (!this.Component.Children[b].MetaData.TryGetValue(Alignment, out childAlignment))
{
//Align left by default.
childAlignment = AlignLeft;
}
if (!string.Equals(containerAlignment, childAlignment, StringComparison.OrdinalIgnoreCase))
{
//Alignment differs.
continue;
}
this.Component.Children[a] = this.Component.Children[b];
this.Component.Children[b] = container.Component;
this.UpdateChildren();
return;
}
//TODO: Move is invalid.
return;
}
}));
}
public static void SetContent(UIComponentContainer source, UIComponentBase value)
{
source.SetValue(ContentProperty, value);
}
public static UIComponentBase GetContent(UIComponentContainer source)
{
return((UIComponentBase)source.GetValue(ContentProperty));
}
public static UIComponentConfiguration GetComponent(UIComponentContainer source)
{
return((UIComponentConfiguration)source.GetValue(ComponentProperty));
}
public Task MoveRight(UIComponentContainer container)
{
return(this.Move(container, index => index + 1));
}
public Task MoveLeft(UIComponentContainer container)
{
return(this.Move(container, index => index - 1));
}
public UIComponentDesignerAdorner(UIComponentContainer container) : base(container)
{
this.Container = container;
this.InitializeComponent();
}