internal static IDisposable SetupSearchModelEventsObserver(WebBrowser webview, NodeSearchModel model, LibraryViewController controller, ILibraryViewCustomization customization, int throttleTime = 200)
{
customization.SpecificationUpdated += (o, e) =>
{
controller.RefreshLibraryView(webview);
controller.CloseNodeTooltip(true);
};
var observer = new EventObserver <NodeSearchElement, IEnumerable <NodeSearchElement> >(
elements => NotifySearchModelUpdate(customization, elements), CollectToList
).Throttle(TimeSpan.FromMilliseconds(throttleTime));
Action <NodeSearchElement> handler = (searchElement) =>
{
var libraryViewController = (controller as LibraryViewController);
if ((libraryViewController != null) && (libraryViewController.disableObserver))
{
return;
}
observer.OnEvent(searchElement);
};
Action <NodeSearchElement> onRemove = e => handler(null);
//Set up the event callback
model.EntryAdded += handler;
model.EntryRemoved += onRemove;
model.EntryUpdated += handler;
//Set up the dispose event handler
observer.Disposed += () =>
{
model.EntryAdded -= handler;
model.EntryRemoved -= onRemove;
model.EntryUpdated -= handler;
};
return(observer);
}
private void scriptNotifyHandler(string dataFromjs)
{
if (string.IsNullOrEmpty(dataFromjs))
{
return;
}
try
{
//a simple refresh of the libary is requested from js context.
if (dataFromjs == "requestUpdateLibrary")
{
controller.RefreshLibraryView(controller.browser);
return;
}
//a more complex action needs to be taken on the c# side.
/*dataFromjs will be an object like:
*
* {func:funcName,
* data:"string" | data:object[] | bool}
*/
var simpleRPCPayload = JsonConvert.DeserializeObject <Dictionary <string, object> >(dataFromjs);
var funcName = simpleRPCPayload["func"] as string;
if (funcName == "createNode")
{
var data = simpleRPCPayload["data"] as string;
controller.CreateNode(data);
}
else if (funcName == "showNodeTooltip")
{
var data = (simpleRPCPayload["data"] as JArray).Children();
controller.ShowNodeTooltip(data.ElementAt(0).Value <string>(), data.ElementAt(1).Value <double>());
}
else if (funcName == "closeNodeTooltip")
{
var data = (bool)simpleRPCPayload["data"];
controller.CloseNodeTooltip(data);
}
else if (funcName == "importLibrary")
{
controller.ImportLibrary();
}
else if (funcName == "logEventsToInstrumentation")
{
var data = (simpleRPCPayload["data"] as JArray).Children();
controller.LogEventsToInstrumentation(data.ElementAt(0).Value <string>(), data.ElementAt(1).Value <string>());
}
else if (funcName == "performSearch")
{
var data = simpleRPCPayload["data"] as string;
var extension = string.Empty;
var searchStream = controller.searchResultDataProvider.GetResource(data, out extension);
var searchReader = new StreamReader(searchStream);
var results = searchReader.ReadToEnd();
//send back results to libjs
controller.browser.
InvokeScript("completeSearch", results);
searchReader.Dispose();
}
}
catch (Exception e)
{
this.controller.LogToDynamoConsole($"Error while parsing command data from javascript{Environment.NewLine}{e.Message}");
}
}