util.dataforms: First commit, incomplete

diff --git a/util/dataforms.lua b/util/dataforms.lua
new file mode 100644 (file)
index 0000000..ba751f6
--- /dev/null
+++ b/util/dataforms.lua
@@ -0,0 +1,69 @@
+
+module "dataforms"
+
+local xmlns_forms = 'jabber:x:data';
+
+local form_t = {};
+local form_mt = { __index = form_t };
+
+function new(layout)
+       return setmetatable(layout, form_mt);
+end
+
+local form_x_attr = { xmlns = xmlns_forms };
+
+function form_t.form(layout, data)
+       local form = st.tag("x", form_x_attr);
+       for n, field in ipairs(layout) do
+               local field_type = field.type;
+               -- Add field tag
+               form:tag("field", { type = field_type, var = field.name });
+
+               local value = data[field.name];
+               
+               -- Add value, depending on type
+               if field_type == "hidden" then
+                       if type(value) == "table" then
+                               -- Assume an XML snippet
+                               form:add_child(value);
+                       elseif value then
+                               form:text(tostring(value));
+                       end
+               elseif field_type == "boolean" then
+                       form:text((value and "1") or "0");
+               elseif field_type == "fixed" then
+                       
+               elseif field_type == "jid-multi" then
+                       for _, jid in ipairs(value) do
+                               form:tag("value"):text(jid):up();
+                       end
+               elseif field_type == "jid-single" then
+                       form:tag("value"):text(value):up();
+                       
+               end
+               
+               -- Jump back up to list of fields
+               form:up();
+       end
+end
+
+function form_t.data(layout, stanza)
+       
+end
+
+
+
+--[[
+
+Layout:
+{
+
+       title = "MUC Configuration",
+       instructions = [[Use this form to configure options for this MUC room.]],
+
+       { name = "FORM_TYPE", type = "hidden", required = true };
+       { name = "field-name", type = "field-type", required = false };
+}
+
+
+--]]