public void OnJavaScriptObjectChanges(IJavascriptObject objectchanged, string propertyName, IJavascriptObject newValue)
{
try
{
var res = _SessionCache.GetGlobalCached(objectchanged) as JsGenericObject;
if (res == null)
{
return;
}
var propertyAccessor = new PropertyAccessor(res.CValue, propertyName, _Logger);
if (!propertyAccessor.IsSettable)
{
_Logger.Info(() => $"Unable to set C# from javascript object: property: {propertyName} is readonly.");
return;
}
var targetType = propertyAccessor.GetTargetType();
var glue = GetCachedOrCreateBasic(newValue, targetType);
Context.RunOnUIContextAsync(() =>
{
using (_IsListening ? _ListenerRegister.GetPropertySilenter(res.CValue) : null)
{
propertyAccessor.Set(glue.CValue);
res.UpdateCSharpProperty(propertyName, glue);
}
});
}
catch (Exception e)
{
_Logger.Error(() => $"Unable to update ViewModel from View, exception raised: {e.Message}");
}
}
public async void OnJavaScriptObjectChanges(IJavascriptObject objectchanged, string propertyName, IJavascriptObject newValue)
{
try
{
var res = _SessionCache.GetCached(objectchanged) as JsGenericObject;
if (res == null)
{
return;
}
var propertyAccessor = new PropertyAccessor(res.CValue, propertyName, _Logger);
if (!propertyAccessor.IsSettable)
{
_Logger.Info(() => $"Unable to set C# from javascript object: property: {propertyName} is readonly.");
return;
}
var targetType = propertyAccessor.GetTargetType();
var glue = GetCachedOrCreateBasic(newValue, targetType);
var bridgeUpdater = glue.IsBasicNotNull() ? null : new BridgeUpdater();
await Context.RunOnUIContextAsync(() =>
{
using (var relisten = glue.IsBasicNotNull() ? null : ReListen(bridgeUpdater))
using (_IsListening ? _ListenerRegister.GetPropertySilenter(res.CValue) : null)
{
var oldValue = propertyAccessor.Get();
propertyAccessor.Set(glue.CValue);
var actualValue = propertyAccessor.Get();
if (Object.Equals(actualValue, glue.CValue))
{
res.UpdateGlueProperty(propertyName, glue);
return;
}
if (!Object.Equals(oldValue, actualValue))
{
CSharpPropertyChanged(res.CValue, new PropertyChangedEventArgs(propertyName));
}
}
});
if (!(bridgeUpdater?.HasUpdatesOnJavascriptContext == true))
{
return;
}
await Context.RunOnJavascriptContextAsync(() =>
{
bridgeUpdater.UpdateOnJavascriptContext(Context.ViewModelUpdater);
});
}
catch (Exception e)
{
_Logger.Error(() => $"Unable to update ViewModel from View, exception raised: {e.Message}");
}
}
public IWPFWebWindowFactory ResolveJavaScriptEngine(string engineName)
{
if (_Engines.Count != 1)
{
return(_Engines.GetOrDefault(engineName));
}
var res = _Engines.First().Value;
if (!string.IsNullOrEmpty(engineName) && (res.Name != engineName))
{
_WebSessionLogger.Info(() => $"Name mismatch in IWPFWebWindowFactory resolution {engineName} vs {res.Name}");
}
return(res);
}
private void MappNested(JsGenericObject gres, object parentObject, IList <PropertyInfo> properties)
{
if (parentObject == null)
{
return;
}
foreach (var propertyInfo in properties)
{
var propertyName = propertyInfo.Name;
object childvalue;
try
{
childvalue = propertyInfo.GetValue(parentObject, null);
}
catch (TargetInvocationException e)
{
_Logger.Info(() => $"Unable to convert property {propertyName} from {parentObject} of type {parentObject.GetType().FullName} exception {e.InnerException}");
continue;
}
var childres = Map(childvalue);
gres.AddGlueProperty(propertyName, childres);
}
}
private void MappNested(object from, JsGenericObject gres)
{
if (from == null)
{
return;
}
var propertyInfos = from.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => p.CanRead);
foreach (var propertyInfo in propertyInfos)
{
var propertyName = propertyInfo.Name;
object childvalue;
try
{
childvalue = propertyInfo.GetValue(from, null);
}
catch (Exception e)
{
_Logger.Info(() => $"Unable to convert property {propertyName} from {@from} exception {e}");
continue;
}
var childres = InternalMap(childvalue);
gres.UpdateCSharpProperty(propertyName, childres);
}
}
public void Dispose()
{
try
{
_Context.Exit();
}
catch (Exception ex)
{
_Logger?.Info($"Problem in exiting chromiumFx context {ex}");
}
}
private void PackUriResourceHandler_GetResponseHeaders(object sender, CfxGetResponseHeadersEventArgs responseHeader)
{
var response = responseHeader.Response;
if (IsPrefetch)
{
_Logger?.Info(Prefetch);
responseHeader.ResponseLength = 0;
SetSuccess(response);
return;
}
if (_StreamResourceInfo == null)
{
response.Status = 404;
response.StatusText = "Not Found";
return;
}
responseHeader.ResponseLength = _StreamResourceInfo.Stream.Length;
SetSuccess(response);
}
private IJavascriptObject GetKo()
{
if (_Ko != null)
{
return(_Ko);
}
_Ko = _WebView.GetGlobal().GetValue("ko");
if ((_Ko == null) || (!_Ko.IsObject))
{
throw ExceptionHelper.Get("ko object not found! You should add a link to knockout.js script to the HML document!");
}
_Ko.Bind("log", _WebView, (e) => _logger.Info(() => string.Join(" - ", e.Select(s => (s.GetStringValue().Replace("\n", " "))))));
return(_Ko);
}
public bool Set(object value)
{
if (!IsSettable)
{
return(false);
}
try
{
_PropertyInfo.SetValue(_Target, value, null);
return(true);
}
catch (Exception e)
{
_Logger.Info($"Unable to set C# from javascript object: property: {_PropertyInfo.Name} of {_Target}, javascript value {value}. Exception {e} was thrown.");
return(false);
}
}
public void UpdateProperty(IJavascriptObject father, string propertyName, IJavascriptObject value)
{
_WebView.RunAsync(() =>
{
var silenter = GetOrCreateSilenter(father);
if (silenter.IsUndefined)
{
_Logger.Info(() => $"UpdateProperty called during an injection process. Property updated {propertyName}");
//may happen if code being call between register and inject
//in this case just set attribute value. The value will be register after
father.SetValue(propertyName, value);
return;
}
var forProperty = silenter.GetValue(propertyName);
forProperty.Invoke("silence", _WebView, value);
InjectUnsafe(value);
});
}
private Action ToTaskAction <T>(Func <T> perform, TaskCompletionSource <T> taskCompletionSource)
{
Action result = () =>
{
using (GetContext())
{
try
{
taskCompletionSource.TrySetResult(perform());
}
catch (Exception exception)
{
_Logger?.Info(() => $"Exception encountred during task dispatch: {exception.Message}");
taskCompletionSource.TrySetException(exception);
}
}
};
return(result);
}
private void MappNested(JsGenericObject gres, IReadOnlyCollection <Tuple <PropertyInfo, object> > properties)
{
foreach (var property in properties)
{
var propertyInfo = property.Item1;
var propertyName = propertyInfo.Name;
var parentObject = property.Item2;
object childvalue;
try
{
childvalue = propertyInfo.GetValue(parentObject, null);
}
catch (TargetInvocationException e)
{
_Logger.Info(() => $"Unable to convert property {propertyName} from {parentObject} of type {parentObject.GetType().FullName} exception {e.InnerException}");
continue;
}
var childres = Map(childvalue);
gres.UpdateCSharpProperty(propertyName, childres);
}
}
private void LogIntrospectionError(string propertyName, object parentObject, Exception exception)
{
_Logger.Info(() => $"Unable to convert property {propertyName} from {parentObject} of type {parentObject.GetType().FullName} exception {exception.InnerException}");
}
private void LogSetError(string propertyName, Type targetType, object @object, Exception exception)
{
_Logger.Info($"Unable to set C# from javascript object: property: {propertyName} of {targetType}, javascript value {@object}. Exception {exception} was thrown.");
}
private void LogException(Exception exception, string message = "Exception encountered during task dispatch")
{
_Logger?.Info($"{message}: {exception}");
}
private void LogException(Exception exception)
{
_Logger?.Info($"Exception encountred during task dispatch: {exception.Message}");
}