/// <summary>
/// Sync list over lifetime: Create and remove list depending on entity count;
/// entities will be removed, added or changed to mirror the given set.
/// </summary>
/// <param name="list">
/// The list to manage. May be null.
/// </param>
/// <param name="jsRuntime"></param>
/// <param name="opts"></param>
/// <returns>
/// The managed list. Assign to the variable you used as parameter.
/// </returns>
public static async Task <MarkerList> SyncAsync(MarkerList list, IJSRuntime jsRuntime, Dictionary <string, MarkerOptions> opts, Action <MouseEvent, string, Marker> clickCallback = null)
{
if (opts.Count == 0)
{
if (list != null)
{
await list.SetMultipleAsync(opts);
list = null;
}
}
else
{
if (list == null)
{
list = await MarkerList.CreateAsync(jsRuntime, new Dictionary <string, MarkerOptions>());
if (clickCallback != null)
{
list.EntityClicked += (sender, e) => {
clickCallback(e.MouseEvent, e.Key, e.Entity);
};
}
}
await list.SetMultipleAsync(opts);
}
return(list);
}
/// <summary>
/// Create markers list
/// </summary>
/// <param name="jsRuntime"></param>
/// <param name="opts">Dictionary of desired Marker keys and MarkerOptions values. Key as any type unique key. Not nessary Guid</param>
/// <returns>new instance of MarkerList class will be returned with its Markers dictionary member populated with the corresponding results</returns>
public static async Task <MarkerList> CreateAsync(IJSRuntime jsRuntime, Dictionary <string, MarkerOptions> opts)
{
JsObjectRef jsObjectRef = new JsObjectRef(jsRuntime, Guid.NewGuid());
MarkerList obj;
Dictionary <string, JsObjectRef> jsObjectRefs = await JsObjectRef.CreateMultipleAsync(
jsRuntime,
"google.maps.Marker",
opts.ToDictionary(e => e.Key, e => (object)e.Value));
Dictionary <string, Marker> objs = jsObjectRefs.ToDictionary(e => e.Key, e => new Marker(e.Value));
obj = new MarkerList(jsObjectRef, objs);
return(obj);
}