void Populate (object callbacks, object o, RootElement root)
{
MemberInfo last_radio_index = null;
BindingFlags flags = BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance;
if (Attribute.GetCustomAttribute(o.GetType (), typeof(SkipNonPublicAttribute)) == null)
flags |= BindingFlags.NonPublic;
var members = o.GetType ().GetMembers (flags);
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)
skip = true;
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;
NSAction 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]);
};
}
}
string 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)
((StringElement) element).Tapped += invoke;
} else if (mType == typeof (float)){
var floatElement = new FloatElement (null, null, (float) GetValue (mi, o));
floatElement.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;
csection.Add (new RadioElement (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++;
}
int 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){
foreach (object attr in attrs){
if (attr is RadioSelectionAttribute){
last_radio_index = mi;
break;
}
}
} 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 WebViewController(HtmlElement container)
: base()
{
this.container = container;
}
private void BuildElementPropertyMap()
{
_ElementPropertyMap = new Dictionary<Type, Func<MemberInfo, string, object, List<Binding>, Element>>();
_ElementPropertyMap.Add(typeof(MethodInfo), (member, caption, dataContext, bindings)=>
{
Element element = null;
var buttonAttribute = member.GetCustomAttribute<ButtonAttribute>();
if (buttonAttribute != null)
{
element = new ButtonElement(caption)
{
BackgroundColor = buttonAttribute.BackgroundColor,
TextColor = buttonAttribute.TextColor,
Command = GetCommandForMember(dataContext, member)
};
}
return element;
});
_ElementPropertyMap.Add(typeof(CLLocationCoordinate2D), (member, caption, dataContext, bindings)=>
{
Element element = null;
var mapAttribute = member.GetCustomAttribute<MapAttribute>();
var location = (CLLocationCoordinate2D)GetValue(member, dataContext);
if (mapAttribute != null)
element = new MapElement(mapAttribute.Caption, mapAttribute.Value, location);
return element;
});
_ElementPropertyMap.Add(typeof(string), (member, caption, dataContext, bindings)=>
{
Element element = null;
var passwordAttribute = member.GetCustomAttribute<PasswordAttribute>();
var entryAttribute = member.GetCustomAttribute<EntryAttribute>();
var multilineAttribute = member.GetCustomAttribute<MultilineAttribute>();
var htmlAttribute = member.GetCustomAttribute<HtmlAttribute>();
var alignmentAttribute = member.GetCustomAttribute<AlignmentAttribute>();
if (passwordAttribute != null)
element = new EntryElement(caption, passwordAttribute.Placeholder, true);
else if (entryAttribute != null)
element = new EntryElement(caption, entryAttribute.Placeholder) { KeyboardType = entryAttribute.KeyboardType };
else if (multilineAttribute != null)
element = new MultilineElement(caption);
else if (htmlAttribute != null)
{
SetDefaultConverter(member, "Value", new UriConverter(), bindings);
element = new HtmlElement(caption);
}
else
{
var selement = new StringElement(caption, (string)GetValue(member, dataContext));
if (alignmentAttribute != null)
selement.Alignment = alignmentAttribute.Alignment;
element = selement;
}
var tappable = element as ITappable;
if (tappable != null)
((ITappable)element).Command = GetCommandForMember(dataContext, member);
return element;
});
_ElementPropertyMap.Add(typeof(float), (member, caption, dataContext, bindings)=>
{
Element element = null;
var rangeAttribute = member.GetCustomAttribute<RangeAttribute>();
if (rangeAttribute != null)
{
var floatElement = new FloatElement() { };
floatElement.Caption = caption;
element = floatElement;
floatElement.MinValue = rangeAttribute.Low;
floatElement.MaxValue = rangeAttribute.High;
floatElement.ShowCaption = rangeAttribute.ShowCaption;
}
else
{
var entryAttribute = member.GetCustomAttribute<EntryAttribute>();
var placeholder = "";
var keyboardType = UIKeyboardType.NumberPad;
if(entryAttribute != null)
{
placeholder = entryAttribute.Placeholder;
if(entryAttribute.KeyboardType != UIKeyboardType.Default)
keyboardType = entryAttribute.KeyboardType;
}
element = new EntryElement(caption, placeholder, "") { KeyboardType = keyboardType };
}
return element;
});
_ElementPropertyMap.Add(typeof(Uri), (member, caption, dataContext, bindings)=>
{
return new HtmlElement(caption, (Uri)GetValue(member, dataContext));
});
_ElementPropertyMap.Add(typeof(bool), (member, caption, dataContext, bindings)=>
{
Element element = null;
var checkboxAttribute = member.GetCustomAttribute<CheckboxAttribute>();
if (checkboxAttribute != null)
element = new CheckboxElement(caption) { };
else
element = new BooleanElement(caption) { };
return element;
});
_ElementPropertyMap.Add(typeof(DateTime), (member, caption, dataContext, bindings)=>
{
Element element = null;
var dateAttribute = member.GetCustomAttribute<DateAttribute>();
var timeAttribute = member.GetCustomAttribute<TimeAttribute>();
if(dateAttribute != null)
element = new DateElement(caption);
else if (timeAttribute != null)
element = new TimeElement(caption);
else
element = new DateTimeElement(caption);
return element;
});
_ElementPropertyMap.Add(typeof(UIImage),(member, caption, dataContext, bindings)=>
{
return new ImageElement();
});
_ElementPropertyMap.Add(typeof(int), (member, caption, dataContext, bindings)=>
{
return new StringElement(caption) { Value = GetValue(member, dataContext).ToString() };
});
}
RootElement CreateRoot()
{
var e_html = new HtmlElement ("Login", URL);
var e_name = new EntryElement("Blogname: ", "Enter the name of the blog", Name);
var e_url = new EntryElement("URL:", "Enter the URL", URL);
var e_login = new EntryElement("Login:"******"Enter your login-name", Login);
e_login.Changed += delegate {
Login = e_login.Value;
};
var e_passwd = new EntryElement("Password:"******"Enter your password", Passwd, true);
e_passwd.Changed += delegate {
Passwd = e_passwd.Value;
};
var e_save = new StringElement( "Save", SavePW);
e_save.Alignment = UITextAlignment.Center;
var e_clear = new StringElement( "Delete", Clear);
e_clear.Alignment = UITextAlignment.Center;
var root = new RootElement (Name, getDVC) {
new Section (){
e_name,
e_url,
e_login,
e_passwd
},
new Section(){
e_save,
e_html
},
new Section () { e_clear }
};
e_name.Changed += delegate {
Name = e_name.Value;
root.Caption = Name;
};
e_url.Changed += delegate {
URL = e_url.Value.ToLower();
if(! URL.StartsWith("http://") ) URL = URL.Insert(0, "http://");
e_html.Url = URL;
if( String.IsNullOrEmpty( Name ) || Name == StartName){
Name = URL.Remove(0, 7);
root.Caption = Name;
e_name.Value = Name;
}
};
return root;
}
public async override void ViewDidLoad()
{
base.ViewDidLoad();
if(id > 0)
{
BTProgressHUD.Show("Loading...");
await viewModel.Init(id);
BTProgressHUD.Dismiss();
}
var delete = UIButton.FromType(UIButtonType.RoundedRect);
delete.SetTitle("Delete", UIControlState.Normal);
delete.Frame = new System.Drawing.RectangleF(0, 0, 320, 44);
delete.TouchUpInside += async (sender, e) =>
{
await viewModel.ExecuteDeleteMovieCommand(viewModel.Id);
NavigationController.PopToRootViewController(true);
};
var save = UIButton.FromType(UIButtonType.RoundedRect);
save.SetTitle("Save", UIControlState.Normal);
save.Frame = new System.Drawing.RectangleF(0, 0, 320, 44);
save.TouchUpInside += async (sender, e) =>
{
viewModel.IsFavorite = isFavorite.Value;
await viewModel.ExecuteSaveMovieCommand();
NavigationController.PopToRootViewController(true);
};
this.Root = new RootElement(viewModel.Title)
{
new Section("Movie Details")
{
(title = new StringElement("Title")),
(imdbId = new HtmlElement("Imdb", string.Empty)),
(runtime = new StringElement("Runtime")),
(releaseDate = new StringElement("Release Date")),
(isFavorite = new BooleanElement("Favorite?", false)),
},
new Section()
{
delete,
save
}
};
title.Value = viewModel.Title;
imdbId.Url = string.Format("http://m.imdb.com/title/{0}", viewModel.ImdbId);
runtime.Value = viewModel.Runtime.ToString();
releaseDate.Value = viewModel.ReleaseDate.ToShortDateString();
isFavorite.Value = viewModel.IsFavorite;
this.NavigationItem.RightBarButtonItem = new UIBarButtonItem(UIBarButtonSystemItem.Camera, async delegate
{
var picker = new Xamarin.Media.MediaPicker();
if (picker.PhotosSupported)
{
try
{
MediaFile file = await picker.PickPhotoAsync();
if (file != null)
{
viewModel.Image = file.GetStream();
await viewModel.ExecuteSaveMovieCommand();
NavigationController.PopToRootViewController(true);
}
}
catch { }
}
});
}
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;
string key = null; // l18n
object [] attrs = mi.GetCustomAttributes(false);
bool skip = false;
bool localize = false;
foreach (var attr in attrs)
{
if (attr is LocalizeAttribute)
{
localize = true;
break;
}
}
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;
if (localize)
{
caption = NSBundle.MainBundle.LocalizedString(caption, caption);
}
}
else if (attr is SectionAttribute)
{
if (section != null)
{
root.Add(section);
}
var sa = attr as SectionAttribute;
var header = sa.Caption;
var footer = sa.Footer;
if (localize)
{
header = NSBundle.MainBundle.LocalizedString(header, header);
footer = NSBundle.MainBundle.LocalizedString(footer, footer);
}
section = new Section(header, footer);
}
}
if (skip)
{
continue;
}
if (caption == null)
{
caption = MakeCaption(mi.Name);
if (localize)
{
caption = NSBundle.MainBundle.LocalizedString(caption, caption);
}
}
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]);
};
}
}
string value = (string)GetValue(mi, o);
if (pa != null)
{
var placeholder = pa.Placeholder;
if (localize)
{
placeholder = NSBundle.MainBundle.LocalizedString(placeholder, placeholder);
}
element = new EntryElement(caption, placeholder, value, true);
}
else if (ea != null)
{
var placeholder = ea.Placeholder;
if (localize)
{
placeholder = NSBundle.MainBundle.LocalizedString(placeholder, placeholder);
}
element = new EntryElement(caption, placeholder, value)
{
KeyboardType = ea.KeyboardType, AutocapitalizationType = ea.AutocapitalizationType, AutocorrectionType = ea.AutocorrectionType, ClearButtonMode = ea.ClearButtonMode
};
}
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)
{
((StringElement)element).Tapped += invoke;
}
}
else if (mType == typeof(float))
{
var floatElement = new FloatElement(null, null, (float)GetValue(mi, o));
floatElement.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;
}
CaptionAttribute ca = Attribute.GetCustomAttribute(fi, typeof(CaptionAttribute)) as CaptionAttribute;
var cap = ca != null ? ca.Caption : MakeCaption(fi.Name);
if (localize)
{
NSBundle.MainBundle.LocalizedString(cap, cap);
}
csection.Add(new RadioElement(cap));
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++;
}
int 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)
{
foreach (object attr in attrs)
{
if (attr is RadioSelectionAttribute)
{
last_radio_index = mi;
break;
}
}
}
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);
}
