private NativeFilePickerAcceptType[] BuildFileTypesMap()
{
var allExtensions = FileTypeFilter.Except(new[] { "*" });
var acceptTypes = allExtensions
.Select(fileType => BuildNativeFilePickerAcceptType(fileType))
.ToList();
if (!FileTypeFilter.Contains("*"))
{
var fullAcceptItem = new NativeFilePickerAcceptTypeItem
{
MimeType = "*/*",
Extensions = allExtensions.ToArray()
};
var fullAcceptType = new NativeFilePickerAcceptType()
{
Description = "All files",
Accept = new[] { fullAcceptItem }
};
acceptTypes.Insert(0, fullAcceptType);
}
return(acceptTypes.ToArray());
}
private NativeFilePickerAcceptType[] BuildFileTypesMap()
{
var acceptTypes = new List <NativeFilePickerAcceptType>();
foreach (var choice in FileTypeChoices)
{
var acceptType = new NativeFilePickerAcceptType();
acceptType.Description = choice.Key;
var acceptItems = new List <NativeFilePickerAcceptTypeItem>();
foreach (var extension in choice.Value)
{
var acceptItem = new NativeFilePickerAcceptTypeItem()
{
MimeType = MimeTypeService.GetFromExtension(extension),
Extensions = new[] { extension }
};
acceptItems.Add(acceptItem);
}
acceptType.Accept = acceptItems.ToArray();
acceptTypes.Add(acceptType);
}
return(acceptTypes.ToArray());
}
private NativeFilePickerAcceptType BuildNativeFilePickerAcceptType(string fileType)
{
var acceptItem = new NativeFilePickerAcceptTypeItem
{
// This generic MIME type prevents unrelated
// extensions from showing up in some browsers.
MimeType = "*/*",
Extensions = new[] { fileType }
};
return(new NativeFilePickerAcceptType
{
// An empty string is consistent with UWP implementation.
// However, some browsers show a generic description when
// this string is empty.
Description = string.Empty,
Accept = new[] { acceptItem }
});
}
private NativeFilePickerAcceptType[] BuildFileTypesMap()
{
var acceptTypes = new List <NativeFilePickerAcceptType>();
var mimeTypeGroups = FileTypeFilter
.Except(new[] { "*" })
.GroupBy(f => MimeTypeService.GetFromExtension(f))
.ToArray();
var allAccepts = new List <NativeFilePickerAcceptTypeItem>();
foreach (var mimeTypeGroup in mimeTypeGroups)
{
var extensions = mimeTypeGroup.ToArray();
var acceptType = new NativeFilePickerAcceptType();
acceptType.Description = extensions.Length > 1 ? string.Empty : extensions.First();
var acceptItem = new NativeFilePickerAcceptTypeItem()
{
MimeType = mimeTypeGroup.Key,
Extensions = extensions
};
allAccepts.Add(acceptItem);
acceptType.Accept = new[] { acceptItem };
acceptTypes.Add(acceptType);
}
if (allAccepts.Count > 1)
{
var fullAcceptType = new NativeFilePickerAcceptType()
{
Description = "All",
Accept = allAccepts.ToArray()
};
acceptTypes.Insert(0, fullAcceptType);
}
return(acceptTypes.ToArray());
}
private NativeFilePickerAcceptType[] BuildFileTypesMap()
{
var acceptTypes = new List <NativeFilePickerAcceptType>();
foreach (var choice in FileTypeChoices)
{
var acceptType = new NativeFilePickerAcceptType();
acceptType.Description = choice.Key;
var acceptItem = new NativeFilePickerAcceptTypeItem()
{
MimeType = "*/*", Extensions = choice.Value.ToArray()
};
acceptType.Accept = new NativeFilePickerAcceptTypeItem[] { acceptItem };
acceptTypes.Add(acceptType);
}
return(acceptTypes.ToArray());
}
