/// <summary>
/// Add the given attribute as possible attribute for this element if no other attribute with same name exists.
/// </summary>
internal bool Add(AttributeDescriptor attribute)
{
if (!attributes.ContainsKey(attribute.Name))
{
attributes[attribute.Name] = attribute;
return true;
}
return false;
}
/// <summary>
/// Parse an attr element into an <see cref="AttributeDescriptor"/>.
/// </summary>
private AttributeDescriptor ParseAttr(XElement attr)
{
var name = GetName(attr);
var formatAsString = GetFormat(attr);
if (string.IsNullOrEmpty(formatAsString))
{
// Auto detect format
if (attr.Elements("enum").Any())
formatAsString = "enum";
else if (attr.Elements("flag").Any())
formatAsString = "flag";
}
// Try to parse the format string
var format = ParseFormat(formatAsString);
// If not available, try R.attr
AttributeDescriptor result = null;
if ((format == 0) && (AttrTypeSpec != null))
{
// Detect format from R.attr
var entry = AttrTypeSpec.Entries.FirstOrDefault(x => x.Key == name);
if (entry != null)
{
var anyType = AttrTypeSpec.Types.FirstOrDefault(x => x.Configuration.IsAny);
if (anyType != null)
{
Table.EntryInstance instance;
Table.ComplexEntryInstance cInstance;
if (entry.TryGetInstance(anyType, out instance) &&
((cInstance = instance as Table.ComplexEntryInstance) != null))
{
AttributeTypes attributeType;
if (cInstance.TryGetAttributeType(out attributeType))
{
// We've found it
format = AttributeTypeToFormat(attributeType);
// Instantiate descriptor
result = new AttributeDescriptor(name, format);
if (((attributeType & AttributeTypes.TYPE_ENUM) != 0) ||
((attributeType & AttributeTypes.TYPE_FLAGS) != 0))
{
// Get enum/flag values from resources.arsc
foreach (var value in cInstance.GetEnumOrFlagValueNames())
{
result.Add(new AttributeValueDescriptor(value));
}
}
}
}
}
}
}
// Instantiate descriptor
result = result ?? new AttributeDescriptor(name, format);
foreach (var child in attr.Elements("enum"))
{
result.Add(new AttributeValueDescriptor(GetName(child)));
}
foreach (var child in attr.Elements("flag"))
{
result.Add(new AttributeValueDescriptor(GetName(child)));
}
return result;
}
/// <summary>
/// Create completions for attribute names.
/// </summary>
private IEnumerable<XmlResourceCompletion> CreateAttributeValueCompletions(AttributeDescriptor attributeDescriptor)
{
var provider = DescriptorProvider;
if (provider == null)
return Enumerable.Empty<XmlResourceCompletion>();
var names = attributeDescriptor.StandardValues.Select(x => x.Value);
return names.OrderBy(x => x).Select(x => new XmlResourceCompletion(glyphService, x, x, x, -1, XmlResourceCompletionType.Attribute));
}
/// <summary>
/// Parse an attr element into an <see cref="AttributeDescriptor"/>.
/// </summary>
private AttributeDescriptor ParseAttr(XElement attr)
{
var name = GetName(attr);
var formatAsString = GetFormat(attr);
if (string.IsNullOrEmpty(formatAsString))
{
// Auto detect format
if (attr.Elements("enum").Any())
{
formatAsString = "enum";
}
else if (attr.Elements("flag").Any())
{
formatAsString = "flag";
}
}
// Try to parse the format string
var format = ParseFormat(formatAsString);
// If not available, try R.attr
AttributeDescriptor result = null;
if ((format == 0) && (AttrTypeSpec != null))
{
// Detect format from R.attr
var entry = AttrTypeSpec.Entries.FirstOrDefault(x => x.Key == name);
if (entry != null)
{
var anyType = AttrTypeSpec.Types.FirstOrDefault(x => x.Configuration.IsAny);
if (anyType != null)
{
Table.EntryInstance instance;
Table.ComplexEntryInstance cInstance;
if (entry.TryGetInstance(anyType, out instance) &&
((cInstance = instance as Table.ComplexEntryInstance) != null))
{
AttributeTypes attributeType;
if (cInstance.TryGetAttributeType(out attributeType))
{
// We've found it
format = AttributeTypeToFormat(attributeType);
// Instantiate descriptor
result = new AttributeDescriptor(name, format);
if (((attributeType & AttributeTypes.TYPE_ENUM) != 0) ||
((attributeType & AttributeTypes.TYPE_FLAGS) != 0))
{
// Get enum/flag values from resources.arsc
foreach (var value in cInstance.GetEnumOrFlagValueNames())
{
result.Add(new AttributeValueDescriptor(value));
}
}
}
}
}
}
}
// Instantiate descriptor
result = result ?? new AttributeDescriptor(name, format);
foreach (var child in attr.Elements("enum"))
{
result.Add(new AttributeValueDescriptor(GetName(child)));
}
foreach (var child in attr.Elements("flag"))
{
result.Add(new AttributeValueDescriptor(GetName(child)));
}
return(result);
}
