Exemplo n.º 1
0
        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}");
            }
        }
Exemplo n.º 2
0
        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}");
            }
        }
Exemplo n.º 3
0
        public async void OnJavaScriptObjectChanges(IJavascriptObject objectchanged, string propertyName, IJavascriptObject newValue)
        {
            try
            {
                var currentfather = _SessionCache.GetCached(objectchanged) as JsGenericObject;
                if (currentfather == null)
                {
                    return;
                }

                var propertyUpdater = currentfather.GetPropertyUpdater(propertyName);
                if (!propertyUpdater.IsSettable)
                {
                    LogReadOnlyProperty(propertyName);
                    return;
                }

                var targetType    = propertyUpdater.TargetType;
                var glue          = GetCachedOrCreateBasic(newValue, targetType);
                var bridgeUpdater = new BridgeUpdater(_SessionCache);

                await Context.RunOnUiContextAsync(() =>
                {
                    using (_ListenerRegister.GetPropertySilenter(currentfather.CValue, propertyName))
                    {
                        var oldValue = propertyUpdater.GetCurrentChildValue();

                        try
                        {
                            propertyUpdater.Set(glue.CValue);
                        }
                        catch (Exception exception)
                        {
                            LogSetError(propertyName, targetType, glue.CValue, exception);
                        }

                        var actualValue = propertyUpdater.GetCurrentChildValue();

                        if (Object.Equals(actualValue, glue.CValue))
                        {
                            var old = currentfather.UpdateGlueProperty(propertyUpdater, glue);
                            bridgeUpdater.Remove(old);
                            bridgeUpdater.CleanAfterChangesOnUiThread(_ListenerRegister.Off);
                            return;
                        }

                        if (!Object.Equals(oldValue, actualValue))
                        {
                            OnCSharpPropertyChanged(currentfather.CValue, new PropertyChangedEventArgs(propertyName));
                        }
                    }
                });

                if (!bridgeUpdater.HasUpdatesOnJavascriptContext)
                {
                    return;
                }

                await Context.RunOnJavascriptContextAsync(() =>
                {
                    bridgeUpdater.UpdateOnJavascriptContext(Context.ViewModelUpdater);
                });
            }
            catch (Exception exception)
            {
                LogJavascriptSetException(exception);
            }
        }