private async Task <TWidget> GetInstance <TWidget>(string widgetPath, UIMessage message,
IWidgetFactory factory = null)
where TWidget : Widget
{
if (PoolingWidgets.ContainsKey(widgetPath))
{
var pool = PoolingWidgets[widgetPath];
if (pool.Count > 0)
{
var instance = pool.Pop();
return(instance as TWidget);
}
}
if (factory == null)
{
factory = DefaultFactory;
}
TWidget widget;
try { widget = (TWidget)await factory.CreateInstance(this, widgetPath, message); }
catch (Exception e)
{
Her.Error(e);
throw;
}
// mark widget factory
FactoryLookup.Add(widget.ViewId, factory);
return(widget);
}
public async Task <Widget> CreateInstance(IUIStack manager, string name, UIMessage message)
{
var loader = Her.Resolve <IViewLoader>();
var prefab = await loader.LoadView(name);
if (prefab == null)
{
throw new Exception($"Load view: {name} failed");
}
var instance = Object.Instantiate(prefab).GetComponent <Widget>();
instance.SetManagerInfo(name, manager, message);
return(instance);
}
public async Task <ulong> PushAsync <TWidget>(string widgetName, UIMessage message,
IWidgetFactory factory = null)
where TWidget : Widget
{
var instance = await GetInstance <TWidget>(widgetName, message, factory);
var parent = LayerLookup[instance.Layer];
instance.transform.SetParent(parent.transform, false);
switch (instance.Layer)
{
case UILayer.Popup:
Popups.Add(instance.ViewId);
break;
}
if (StackedWindows.Count > 0)
{
var prevWidget = StackedWindows.Peek();
if (prevWidget != null)
{
await prevWidget.OnFreeze();
// Window will overlay previous windows.
if (instance.Layer == UILayer.Window && WindowsInDisplay.Contains(prevWidget.ViewId))
{
WindowsInDisplay.Remove(prevWidget.ViewId);
}
}
}
await instance.OnShow();
StackedWindows.Push(instance);
WindowsInDisplay.Add(instance.ViewId);
return(instance.ViewId);
}
public async Task <ulong> PushAsync(string widgetName, UIMessage message,
IWidgetFactory factory = null)
{
return(await PushAsync <Widget>(widgetName, message, factory));
}
public virtual void SetManagerInfo(string path, IUIStack manager, UIMessage message)
{
Path = path;
IuiStack = manager;
Message = message;
}