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using Gee;
namespace Xmpp.Xep.MessageMarkup {
public const string NS_URI = "urn:xmpp:markup:0";
public enum SpanType {
EMPHASIS,
STRONG_EMPHASIS,
DELETED,
}
public class Span : Object {
public Gee.List<SpanType> types { get; set; }
public int start_char { get; set; }
public int end_char { get; set; }
}
public Gee.List<Span> get_spans(MessageStanza stanza) {
var ret = new ArrayList<Span>();
foreach (StanzaNode span_node in stanza.stanza.get_deep_subnodes(NS_URI + ":markup", NS_URI + ":span")) {
int start_char = span_node.get_attribute_int("start", -1, NS_URI);
int end_char = span_node.get_attribute_int("end", -1, NS_URI);
if (start_char == -1 || end_char == -1) continue;
var types = new ArrayList<SpanType>();
foreach (StanzaNode span_subnode in span_node.get_all_subnodes()) {
types.add(str_to_span_type(span_subnode.name));
}
ret.add(new Span() { types=types, start_char=start_char, end_char=end_char });
}
return ret;
}
public void add_spans(MessageStanza stanza, Gee.List<Span> spans) {
if (spans.is_empty) return;
StanzaNode markup_node = new StanzaNode.build("markup", NS_URI).add_self_xmlns();
foreach (var span in spans) {
StanzaNode span_node = new StanzaNode.build("span", NS_URI)
.put_attribute("start", span.start_char.to_string(), NS_URI)
.put_attribute("end", span.end_char.to_string(), NS_URI);
foreach (var type in span.types) {
span_node.put_node(new StanzaNode.build(span_type_to_str(type), NS_URI));
}
markup_node.put_node(span_node);
}
stanza.stanza.put_node(markup_node);
}
public static string span_type_to_str(Xep.MessageMarkup.SpanType span_type) {
switch (span_type) {
case Xep.MessageMarkup.SpanType.EMPHASIS:
return "emphasis";
case Xep.MessageMarkup.SpanType.STRONG_EMPHASIS:
return "strong";
case Xep.MessageMarkup.SpanType.DELETED:
return "deleted";
default:
return "";
}
}
public static Xep.MessageMarkup.SpanType str_to_span_type(string span_str) {
switch (span_str) {
case "emphasis":
return Xep.MessageMarkup.SpanType.EMPHASIS;
case "strong":
return Xep.MessageMarkup.SpanType.STRONG_EMPHASIS;
case "deleted":
return Xep.MessageMarkup.SpanType.DELETED;
default:
return Xep.MessageMarkup.SpanType.EMPHASIS;
}
}
}
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