private void Populate(object callbacks, object o, RootElement root)
{
MemberInfo last_radio_index = null;
var members = o.GetType().GetMembers(BindingFlags.DeclaredOnly | BindingFlags.Public |
BindingFlags.NonPublic | BindingFlags.Instance);
Section section = null;
foreach (var mi in members)
{
Type mType = GetTypeForMember(mi);
if (mType == null)
continue;
string caption = null;
object[] attrs = mi.GetCustomAttributes(false);
bool skip = false;
foreach (var attr in attrs)
{
if (attr is SkipAttribute || attr is System.Runtime.CompilerServices.CompilerGeneratedAttribute)
skip = true;
else if (attr is CaptionAttribute)
caption = ((CaptionAttribute)attr).Caption;
else if (attr is SectionAttribute)
{
if (section != null)
root.Add(section);
var sa = attr as SectionAttribute;
section = new Section(sa.Caption, sa.Footer);
}
}
if (skip)
continue;
if (caption == null)
caption = MakeCaption(mi.Name);
if (section == null)
section = new Section();
Element element = null;
if (mType == typeof(string))
{
PasswordAttribute pa = null;
AlignmentAttribute align = null;
EntryAttribute ea = null;
object html = null;
Action invoke = null;
bool multi = false;
foreach (object attr in attrs)
{
if (attr is PasswordAttribute)
pa = attr as PasswordAttribute;
else if (attr is EntryAttribute)
ea = attr as EntryAttribute;
else if (attr is MultilineAttribute)
multi = true;
else if (attr is HtmlAttribute)
html = attr;
else if (attr is AlignmentAttribute)
align = attr as AlignmentAttribute;
if (attr is OnTapAttribute)
{
string mname = ((OnTapAttribute)attr).Method;
if (callbacks == null)
{
throw new Exception(
"Your class contains [OnTap] attributes, but you passed a null object for `context' in the constructor");
}
var method = callbacks.GetType().GetMethod(mname);
if (method == null)
throw new Exception("Did not find method " + mname);
invoke = delegate { method.Invoke(method.IsStatic ? null : callbacks, new object[0]); };
}
}
var value = (string)GetValue(mi, o);
if (pa != null)
element = new EntryElement(caption, pa.Placeholder, value, true);
else if (ea != null)
element = new EntryElement(caption, ea.Placeholder, value) { KeyboardType = ea.KeyboardType };
else if (multi)
element = new MultilineElement(caption, value);
else if (html != null)
element = new HtmlElement(caption, value);
else
{
var selement = new StringElement(caption, value);
element = selement;
if (align != null)
selement.Alignment = align.Alignment;
}
if (invoke != null)
(element).Tapped += invoke;
}
else if (mType == typeof(float))
{
var floatElement = new FloatElement(null, null, (float)GetValue(mi, o)) { Caption = caption };
element = floatElement;
foreach (object attr in attrs)
{
if (attr is RangeAttribute)
{
var ra = attr as RangeAttribute;
floatElement.MinValue = ra.Low;
floatElement.MaxValue = ra.High;
floatElement.ShowCaption = ra.ShowCaption;
}
}
}
else if (mType == typeof(bool))
{
bool checkbox = false;
foreach (object attr in attrs)
{
if (attr is CheckboxAttribute)
checkbox = true;
}
if (checkbox)
element = new CheckboxElement(caption, (bool)GetValue(mi, o));
else
element = new BooleanElement(caption, (bool)GetValue(mi, o));
}
else if (mType == typeof(DateTime))
{
var dateTime = (DateTime)GetValue(mi, o);
bool asDate = false, asTime = false;
foreach (object attr in attrs)
{
if (attr is DateAttribute)
asDate = true;
else if (attr is TimeAttribute)
asTime = true;
}
if (asDate)
element = new DateElement(caption, dateTime);
else if (asTime)
element = new TimeElement(caption, dateTime);
else
element = new DateTimeElement(caption, dateTime);
}
else if (mType.IsEnum)
{
var csection = new Section();
ulong evalue = Convert.ToUInt64(GetValue(mi, o), null);
int idx = 0;
int selected = 0;
foreach (var fi in mType.GetFields(BindingFlags.Public | BindingFlags.Static))
{
ulong v = Convert.ToUInt64(GetValue(fi, null));
if (v == evalue)
selected = idx;
var ca = Attribute.GetCustomAttribute(fi, typeof(CaptionAttribute)) as CaptionAttribute;
csection.Add(new RadioElement(ca != null ? ca.Caption : MakeCaption(fi.Name)));
idx++;
}
element = new RootElement(caption, new RadioGroup(null, selected)) { csection };
}
else if (mType == typeof(UIImage))
{
element = new ImageElement((UIImage)GetValue(mi, o));
}
else if (typeof(System.Collections.IEnumerable).IsAssignableFrom(mType))
{
var csection = new Section();
int count = 0;
if (last_radio_index == null)
throw new Exception("IEnumerable found, but no previous int found");
foreach (var e in (IEnumerable)GetValue(mi, o))
{
csection.Add(new RadioElement(e.ToString()));
count++;
}
var selected = (int)GetValue(last_radio_index, o);
if (selected >= count || selected < 0)
selected = 0;
element = new RootElement(caption, new MemberRadioGroup(null, selected, last_radio_index))
{
csection
};
last_radio_index = null;
}
else if (typeof(int) == mType)
{
if (attrs.OfType<RadioSelectionAttribute>().Any())
{
last_radio_index = mi;
}
}
else
{
var nested = GetValue(mi, o);
if (nested != null)
{
var newRoot = new RootElement(caption);
Populate(callbacks, nested, newRoot);
element = newRoot;
}
}
if (element == null)
continue;
section.Add(element);
mappings[element] = new MemberAndInstance(mi, o);
}
root.Add(section);
}
public void PerformFilter(string text)
{
if (originalSections == null)
return;
OnSearchTextChanged(text);
var newSections = new List<Section>();
for (int sidx = 0; sidx < originalSections.Length; sidx++)
{
Section newSection = null;
var section = originalSections[sidx];
Element[] elements = originalElements[sidx];
for (int eidx = 0; eidx < elements.Length; eidx++)
{
if (elements[eidx].Matches(text))
{
if (newSection == null)
{
newSection = new Section(section.Header, section.Footer)
{
FooterView = section.FooterView,
HeaderView = section.HeaderView
};
newSections.Add(newSection);
}
newSection.Add(elements[eidx]);
}
}
}
Root.Sections = newSections;
ReloadData();
}
