protected internal virtual Task OnAction(ExecuteActionArgs e)
{
return(Task.CompletedTask);
}
protected internal virtual async Task OnAction(ExecuteActionArgs e)
{
}
protected internal override async Task OnAction(ExecuteActionArgs e)
{
if (e.Action == "ExportToExcel" && !e.IsHandled)
{
await e.ExecuteServiceRequest();
Exception error = null;
try
{
if (e.Result != null)
{
try
{
var data = e.Result["excelFile"].ValueDirect;
var parts = data.Split('|');
var bytes = Convert.FromBase64String(parts[1]);
var fileName = parts[0];
var folder = ApplicationData.Current.LocalFolder;
var file = await folder.CreateFileAsync(fileName, CreationCollisionOption.ReplaceExisting);
using (var s = await file.OpenStreamForWriteAsync())
await s.WriteAsync(bytes, 0, bytes.Length);
await Launcher.LaunchFileAsync(file);
}
finally
{
e.Result = null;
}
}
}
catch (Exception ex)
{
error = ex;
}
if (error != null)
await Service.Current.Hooks.ShowNotification(error.Message, NotificationType.Error);
e.IsHandled = true;
}
}
public virtual bool OnAction(ExecuteActionArgs args)
{
return args.IsHandled;
}
public virtual bool OnAction(ExecuteActionArgs args)
{
return(args.IsHandled);
}
public async Task<PersistentObject> ExecuteActionAsync(string action, PersistentObject parent = null, Query query = null, QueryResultItem[] selectedItems = null, Dictionary<string, string> parameters = null, bool skipHooks = false)
{
var isObjectAction = action.StartsWith("PersistentObject.") || query == null;
try
{
IsBusy = true;
if (!skipHooks)
{
string fullTypeName;
if (!isObjectAction)
{
query.SetNotification(null);
fullTypeName = query.PersistentObject.FullTypeName;
}
else
{
parent.SetNotification(null);
fullTypeName = parent.FullTypeName;
}
var args = new ExecuteActionArgs(action) { Parameters = parameters, PersistentObject = parent, Query = query, SelectedItems = selectedItems };
await Hooks.OnAction(args);
if (args.IsHandled)
return args.Result;
args.IsHandled = ClientActions.Get(fullTypeName).OnAction(args);
if (args.IsHandled)
return args.Result;
}
var data = CreateData();
data["action"] = action;
data["query"] = query != null ? query.ToServiceObject() : null;
data["parent"] = parent != null ? parent.ToServiceObject() : null;
data["selectedItems"] = selectedItems != null ? JArray.FromObject(selectedItems.Select(i => i != null ? i.ToServiceObject() : null)) : null;
data["parameters"] = parameters != null ? JToken.FromObject(parameters) : null;
var response = await PostAsync("ExecuteAction", data);
var ex = (string)response["exception"] ?? (string)response["ExceptionMessage"];
if (!string.IsNullOrEmpty(ex))
{
if (isObjectAction)
parent.SetNotification(ex);
else
query.SetNotification(ex);
return null;
}
AuthToken = (string)response["authToken"];
await UpdateSession(response);
var jPo = (JObject)response["result"];
return jPo != null ? Hooks.OnConstruct(jPo) : null;
}
catch (Exception e)
{
if (isObjectAction)
parent.SetNotification(e.Message);
else
query.SetNotification(e.Message);
return null;
}
finally
{
IsBusy = false;
}
}
protected internal override async Task OnAction(ExecuteActionArgs e)
{
if (e.Action == "ExportToExcel" && !e.IsHandled)
{
await e.ExecuteServiceRequest();
Exception error = null;
try
{
if (e.Result != null)
{
try
{
var savePicker = new FileSavePicker();
savePicker.SuggestedFileName = e.Query.Name + ".xlsx";
savePicker.FileTypeChoices.Add("Excel File", new List<string> { ".xlsx" });
savePicker.DefaultFileExtension = ".xlsx";
var fileToSave = await savePicker.PickSaveFileAsync();
if (fileToSave != null)
{
using (var stream = await fileToSave.OpenAsync(FileAccessMode.ReadWrite))
{
using (var outputStream = stream.GetOutputStreamAt(0))
{
using (var dataWriter = new DataWriter(outputStream))
{
var data = e.Result["excelFile"].ValueDirect;
data = data.Substring(data.IndexOf('|') + 1);
dataWriter.WriteBytes(Convert.FromBase64String(data));
await dataWriter.StoreAsync();
dataWriter.DetachStream();
}
}
await stream.FlushAsync();
}
await Windows.System.Launcher.LaunchFileAsync(fileToSave);
}
}
finally
{
e.Result = null;
}
}
}
catch (Exception ex)
{
error = ex;
}
if (error != null)
{
var dialog = new MessageDialog(Service.Current.Messages["CouldNotOpenExcelFile"], string.Empty);
dialog.Commands.Add(new UICommand(Service.Current.Messages["OK"]));
await dialog.ShowAsync();
}
e.IsHandled = true;
}
}
