private void UnsubscribeEvent(UnsubscribeEventData data)
{
EventRegistration eventRegistration = null;
if (eventRegistrations.TryRemove(data.CallbackId, out eventRegistration))
{
serviceDispatcher.UnsubscribeEvent(data.ServiceName, eventRegistration);
}
}
public WebBrowserPage(IServiceDispatcher serviceDispatcher, IPlatformProvider platformProvider)
{
webView = new ShellWebView();
eventRegistrations = new ConcurrentDictionary <string, EventRegistration>();
webView.RegisterCallback("initialize", args =>
{
platformProvider.ExecuteOnUIThread(() => webView.InjectJavaScript(string.Format("serviceDispatcher._initializeCallback({0});", JsonConvert.SerializeObject(serviceDispatcher.Services))));
});
webView.RegisterCallback("dispatch", args =>
{
DispatchData dispatchData = JsonConvert.DeserializeObject <DispatchData>(args);
string result = string.IsNullOrEmpty(dispatchData.InstanceName)
? JsonConvert.SerializeObject(serviceDispatcher.Dispatch(dispatchData.ServiceName, dispatchData.MethodName, dispatchData.Arguments))
: JsonConvert.SerializeObject(serviceDispatcher.Dispatch(dispatchData.ServiceName, dispatchData.InstanceName, dispatchData.MethodName, dispatchData.Arguments));
if (dispatchData.CallbackId != null)
{
platformProvider.ExecuteOnUIThread(() => webView.InjectJavaScript(string.Format("serviceDispatcher._dispatchCallback('{0}', {1});", dispatchData.CallbackId, result)));
}
});
webView.RegisterCallback("subscribeEvent", args =>
{
SubscribeEventData subscribeEventData = JsonConvert.DeserializeObject <SubscribeEventData>(args);
EventRegistration eventRegistration = serviceDispatcher.SubscribeEvent(subscribeEventData.ServiceName, subscribeEventData.EventName, this, (s, e) =>
{
if (subscribeEventData.CallbackId != null)
{
platformProvider.ExecuteOnUIThread(() => webView.InjectJavaScript(string.Format("serviceDispatcher._eventCallback('{0}', '{1}');", subscribeEventData.CallbackId, JsonConvert.SerializeObject(e))));
}
});
eventRegistrations.AddOrUpdate(subscribeEventData.CallbackId, eventRegistration, (k, e) => e);
});
webView.RegisterCallback("unsubscribeEvent", args =>
{
UnsubscribeEventData unsubscribeEventData = JsonConvert.DeserializeObject <UnsubscribeEventData>(args);
EventRegistration eventRegistration = null;
if (eventRegistrations.TryRemove(unsubscribeEventData.CallbackId, out eventRegistration))
{
serviceDispatcher.UnsubscribeEvent(unsubscribeEventData.ServiceName, eventRegistration);
}
});
Content = webView;
SetBinding(UrlProperty, new Binding("Url"));
SetBinding(HtmlProperty, new Binding("Html"));
webView.NavigationCompleted += (s, e) =>
{
if (webView.Source is UrlWebViewSource)
{
Url = e;
}
};
}
