protected override ValidatorResult Evaluate()
{
string value = this.ControlValidationValue;
if (string.IsNullOrEmpty(value))
{
return(ValidatorResult.Valid);
}
Item item = Database.GetItem(this.ItemUri);
Assert.IsNotNull(item, "item");
FileDropAreaField fda = new FileDropAreaField(item.Fields[this.FieldID], value);
ItemList mediaItems = fda.GetMediaItems();
if (mediaItems == null || mediaItems.Count < 1 || mediaItems[0] == null)
{
return(ValidatorResult.Valid);
}
if (mediaItems.Count > 1 || mediaItems[0]["extension"] != "docx")
{
string field = string.IsNullOrEmpty(
fda.InnerField.Title) ? fda.InnerField.Name : fda.InnerField.Title;
this.Text = Translate.Text(
"{0} may contain only one Word document (.docx file).",
field);
return(this.GetMaxValidatorResult());
}
return(ValidatorResult.Valid);
}
/// <summary>
/// Nested logic for argument processing and possible UI alerts.
/// </summary>
private void Apply(object[] parameters)
{
Assert.ArgumentCondition(
parameters != null && parameters.Length == 1 && parameters[0] is ClientPipelineArgs,
"parameters",
"//TODO");
ClientPipelineArgs args = parameters[0] as ClientPipelineArgs;
// the FDA field of the item edited by the user
Field field = this.Item.Fields[this.FieldID];
Assert.IsNotNull(field, "field");
FileDropAreaField fda = new FileDropAreaField(
field,
base.GetViewStateProperty("XmlValue", string.Empty) as string);
ItemList mediaItems = fda.GetMediaItems();
if (mediaItems.Count < 1)
{
SheerResponse.Alert(
Translate.Text("Add a media item."));
args.AbortPipeline();
return;
}
Item item = null;
if (mediaItems.Count == 1)
{
item = mediaItems[0];
}
else if (mediaItems.Count > 1)
{
ItemList selectedItems = null;
try
{
// this may throw an exception; see 406891
selectedItems = this.GetSelectedItems();
}
catch (Exception ex)
{
SheerResponse.Alert(
Translate.Text("Select an item from the list."));
args.AbortPipeline();
return;
}
if (selectedItems.Count != 1)
{
SheerResponse.Alert(
Translate.Text("Select a single item from the list."));
args.AbortPipeline();
return;
}
item = selectedItems[0];
}
MediaItem mediaItem = new MediaItem(item);
if (mediaItem.Extension != "docx")
{
SheerResponse.Alert(Translate.Text(
"Seelect a Word document from the list."));
args.AbortPipeline();
return;
}
WordUtil.HandleWordDocument(this.Item, mediaItem);
}