public BindingContext(object view, string title, Theme currentTheme)
{
if (view == null)
throw new ArgumentNullException("view");
BuildElementPropertyMap();
Root = new RootElement(title);
Root.ViewBinding.DataContext = view;
var themeable = Root as IThemeable;
if (themeable != null)
themeable.Theme = Theme.CreateTheme(currentTheme);
Populate(view, Root);
var viewContext = view as IBindingContext;
if (viewContext != null)
{
viewContext.BindingContext = this;
var dataContext = view as IDataContext;
if (dataContext != null)
{
var vmContext = dataContext.DataContext as IBindingContext;
if (vmContext != null)
{
vmContext.BindingContext = this;
}
}
}
}
public BindingContext(UIView view, string title, Theme currentTheme)
{
if (view == null)
throw new ArgumentNullException("view");
var parser = new ViewParser();
parser.Parse(view, title, currentTheme);
Root = parser.Root;
var viewContext = view as IBindingContext;
if (viewContext != null)
{
viewContext.BindingContext = this;
var dataContext = view as IDataContext;
if (dataContext != null)
{
var vmContext = dataContext.DataContext as IBindingContext;
if (vmContext != null)
{
vmContext.BindingContext = this;
}
}
}
if (view is IView)
{
((IView)view).TableView = Root.TableView;
}
}
public void Parse(UIView view, string caption, Theme theme)
{
var vw = view as IView;
if (vw != null)
{
var captionAttribute = view.GetType().GetCustomAttribute<CaptionAttribute>();
if (captionAttribute != null)
caption = captionAttribute.Caption;
}
Root = new RootElement(caption) { Opaque = false };
Root.DataContext = view;
var dataContext = view as IDataContext;
if (dataContext != null)
Root.DataContext = dataContext.DataContext;
var themeable = Root as IThemeable;
if (themeable != null)
themeable.Theme = Theme.CreateTheme(theme);
var searchbarAttribute = view.GetType().GetCustomAttribute<SearchbarAttribute>();
var searchbar = Root as ISearchBar;
if (searchbarAttribute != null && searchbar != null)
{
searchbar.SearchPlaceholder = searchbarAttribute.Placeholder;
searchbar.IncrementalSearch = searchbarAttribute.IncrementalSearch;
searchbar.EnableSearch = true;
searchbar.IsSearchbarHidden = false;
}
var sectionList = CreateSectionList(view, Root);
sectionList.ForEach((section)=>section.BeginInit());
Root.Add(sectionList);
Root.ToolbarButtons = CheckForToolbarItems(view);
Root.NavbarButtons = CheckForNavbarItems(view);
var notifyDataContextChanged = view as INotifyDataContextChanged;
if (notifyDataContextChanged != null)
{
notifyDataContextChanged.DataContextChanged += HandleNotifyDataContextChangedDataContextChanged;
}
}
public static void ApplyElementTheme(Theme theme, IThemeable element, MemberInfo member)
{
if (theme != null)
{
var newTheme = Theme.CreateTheme(theme);
newTheme.MergeTheme(element.Theme);
element.Theme = newTheme;
}
if (member != null)
ApplyMemberTheme(member, element);
if (element is IRoot)
{
foreach(var section in ((IRoot)element).Sections)
foreach(var e in section.Elements)
ApplyElementTheme(element.Theme, e, null);
}
if (element is ISection)
foreach(var e in ((ISection)element).Elements)
ApplyElementTheme(element.Theme, e, null);
}
private IRoot CreateEnumerableRoot(Theme theme, MemberInfo member, string caption, object view, List<Binding> bindings)
{
var rootAttribute = member.GetCustomAttribute<RootAttribute>();
var listAttribute = member.GetCustomAttribute<ListAttribute>();
var viewAttribute = member.GetCustomAttribute<ViewAttribute>();
Type elementType = listAttribute.ElementType;
if (elementType == null)
{
elementType = rootAttribute.ElementType;
}
SetDefaultConverter(view, member, "DataContext", new EnumerableConverter(), null, bindings);
var items = (IEnumerable)member.GetValue(view);
if (items == null)
throw new ArgumentNullException(member.Name, string.Format("Member of class {1} must have a value.", view.GetType().Name));
var genericType = items.GetType().GetGenericArguments().SingleOrDefault();
var isUIView = typeof(UIView).IsAssignableFrom(genericType);
var section = CreateEnumSection(theme, member, items, null, true, bindings);
var root = new RootElement(caption) { section };
root.Opaque = false;
root.ViewBinding.MemberInfo = member;
root.DataContext = items;
root.ViewBinding.DataContextCode = DataContextCode.Enumerable;
if (isUIView)
{
root.ViewBinding.ViewType = genericType;
root.ViewBinding.DataContextCode = DataContextCode.ViewEnumerable;
}
else if (viewAttribute != null && viewAttribute.ViewType != null)
{
root.ViewBinding.ViewType = viewAttribute.ViewType;
root.ViewBinding.DataContextCode = DataContextCode.ViewEnumerable;
}
if (rootAttribute != null && rootAttribute.ViewType != null)
{
root.ViewBinding.ViewType = rootAttribute.ViewType;
root.ViewBinding.DataContextCode = DataContextCode.ViewEnumerable;
}
if (listAttribute != null)
{
root.ViewBinding.ViewType = listAttribute.ViewType ?? root.ViewBinding.ViewType;
}
root.Theme.CellStyle = GetCellStyle(member, UITableViewCellStyle.Value1);
return root;
}
private ISection CreateEnumSection(Theme theme, MemberInfo member, IEnumerable values, object currentValue, bool popOnSelection, List<Binding> bindings)
{
var csection = new Section() { Opaque = false };
int index = 0;
int selected = -1;
foreach(var value in values)
{
if (currentValue != null && currentValue.Equals(value))
selected = index;
var description = value.ToString();
if (value.GetType().IsEnum)
description = ((Enum)value).GetDescription();
var radioElement = new RadioElement(description) { Item = value };
radioElement.Index = index;
radioElement.PopOnSelect = popOnSelection;
radioElement.DataContext = selected == index;
radioElement.Opaque = false;
csection.Add(radioElement);
index++;
}
csection.ViewBinding.DataContextCode = DataContextCode.Enum;
return csection;
}
private ISection GetSectionElementForMember(Theme theme, object view, MemberInfo member, List<Binding> bindings)
{
var caption = GetCaption(member);
Type memberType = GetTypeForMember(member);
ISection section = null;
var isMultiselect = member.GetCustomAttribute<MultiSelectionAttribute>() != null;
var isSelect = member.GetCustomAttribute<SelectionAttribute>() != null;
if (memberType.IsEnum)
{
SetDefaultConverter(view, member, "DataContext", new EnumConverter(), memberType, bindings);
var pop = member.GetCustomAttribute<PopOnSelectionAttribute>() != null;
var currentValue = member.GetValue(view);
var enumValues = Enum.GetValues(memberType);
section = CreateEnumSection(theme, member, enumValues, currentValue, pop, bindings);
}
else if (typeof(EnumCollection).IsAssignableFrom(memberType))
{
section = CreateEnumCollectionSection(member, caption, view, bindings);
}
else if (isMultiselect)
{
section = CreateMultiselectCollectionSection(member, caption, view, bindings);
}
else if (isSelect)
{
section = CreateSelectCollectionSection(member, caption, view, bindings);
}
return section;
}
private IElement GetRootElementForMember(Theme theme, UIView view, MemberInfo member, List<Binding> bindings)
{
var memberType = GetTypeForMember(member);
var caption = GetCaption(member);
IElement root = null;
Type viewType = memberType;
Type elementType = null;
var genericType = memberType.GetGenericArguments().FirstOrDefault();
if (genericType != null)
viewType = genericType;
var listAttribute = member.GetCustomAttribute<ListAttribute>();
if (listAttribute != null && listAttribute.ViewType != null)
{
viewType = listAttribute.ViewType;
elementType = listAttribute.ElementType;
}
var rootAttribute = member.GetCustomAttribute<RootAttribute>();
if (rootAttribute != null && rootAttribute.ViewType != null)
{
viewType = rootAttribute.ViewType;
elementType = rootAttribute.ElementType;
}
var isEnum = memberType.IsEnum;
var isEnumCollection = typeof(EnumCollection).IsAssignableFrom(memberType);
var isMultiselect = member.GetCustomAttribute<MultiSelectionAttribute>() != null;
var isSelect = member.GetCustomAttribute<SelectionAttribute>() != null;
var isView = typeof(IView).IsAssignableFrom(memberType) || typeof(IView).IsAssignableFrom(viewType);
var isUIView = typeof(UIView).IsAssignableFrom(memberType) || typeof(UIView).IsAssignableFrom(viewType);
var isEnumerable = typeof(IEnumerable).IsAssignableFrom(memberType) && !(isView || isUIView);
var isList = member.GetCustomAttribute<ListAttribute>() != null;
if (isEnum || isEnumCollection || isMultiselect || isSelect)
{
ISection section = GetSectionElementForMember(theme, view, member, bindings);
if (!isList && section != null)
{
var rootElement = new RootElement() { section };
rootElement.Caption = caption;
rootElement.Opaque = false;
rootElement.Theme = Theme.CreateTheme(Root.Theme);
rootElement.ViewBinding = section.ViewBinding;
rootElement.Theme.CellStyle = GetCellStyle(member, UITableViewCellStyle.Value1);
root = rootElement;
}
else
{
root = section as IElement;
}
}
else if (isEnumerable)
{
var rootElement = CreateEnumerableRoot(theme, member, caption, view, bindings);
if (isList)
{
root = rootElement.Sections.FirstOrDefault() as IElement;
}
else
{
root = rootElement as IElement;
}
}
else if (isView || isUIView)
{
object dataContext = view;
MemberInfo dataContextMember = GetMemberFromDataContext(member, ref dataContext);
var items = dataContextMember.GetValue(dataContext);
var rootElement = new RootElement(caption) { Opaque = false };
rootElement.Theme = Theme.CreateTheme(Root.Theme);
rootElement.ViewBinding.MemberInfo = dataContextMember;
rootElement.ViewBinding.ElementType = elementType;
rootElement.ViewBinding.ViewType = viewType;
rootElement.ViewBinding.DataContextCode = DataContextCode.Object;
rootElement.DataContext = dataContext;
rootElement.Theme.CellStyle = GetCellStyle(member, UITableViewCellStyle.Default);
if (items != null)
{
if (items is UIView)
{
rootElement.ViewBinding.View = items as UIView;
}
else
{
rootElement.DataContext = items;
}
}
if (genericType != null)
{
SetDefaultConverter(view, member, "DataContext", new EnumerableConverter(), null, bindings);
rootElement.ViewBinding.DataContextCode = DataContextCode.ViewEnumerable;
rootElement.ViewBinding.ViewType = viewType;
}
if (isList)
{
var innerRoot = BindingContext.CreateRootedView(rootElement);
root = innerRoot as IElement;
}
else
{
root = rootElement;
}
}
else
{
throw new Exception(string.Format("Unknown type ({0}). Are you missing a [Root] or [List] attribute?", memberType));
}
SetDefaultConverter(view, member, "DataContext", new ViewConverter(), null, bindings);
return root;
}
private IElement GetElementForMember(Theme theme, UIView view, MemberInfo member, List<Binding> bindings)
{
string caption = GetCaption(member);
IElement element = null;
var orderAttribute = member.GetCustomAttribute<OrderAttribute>();
Type memberType = GetTypeForMember(member);
if (!(member is MethodInfo))
{
var defaultValue = member.GetCustomAttribute<DefaultValueAttribute>();
if (defaultValue != null)
{
var propertyInfo = member as PropertyInfo;
var fieldInfo = member as FieldInfo;
if (propertyInfo != null && propertyInfo.CanWrite)
{
propertyInfo.SetValue(view, defaultValue.Value, null);
}
if (fieldInfo != null)
{
fieldInfo.SetValue(view, defaultValue.Value);
}
}
}
// get a single element
if(_ElementPropertyMap.ContainsKey(memberType))
{
element = _ElementPropertyMap[memberType](member, caption, view, bindings);
}
if (typeof(IElement).IsAssignableFrom(memberType))
{
var memberValue = member.GetValue(view) as IElement;
if (memberValue == null)
{
memberValue = Activator.CreateInstance(memberType) as IElement;
}
if (memberValue != null)
{
memberValue.Caption = caption;
}
element = memberValue;
}
if (element == null)
{
element = GetRootElementForMember(theme, view, member, bindings);
}
if (orderAttribute != null && element != null)
element.Order = orderAttribute.Order;
var dataContext = view as IDataContext;
if (dataContext != null && element.DataContext == null)
{
element.DataContext = dataContext.DataContext;
}
return element;
}
public void MergeTheme(Theme theme)
{
if (theme != null)
{
Name = theme.Name;
if (theme.CellStyle != UITableViewCellStyle.Default && CellStyle != theme.CellStyle)
CellStyle = theme.CellStyle;
if (theme.Accessory != Accessory)
Accessory = theme.Accessory;
// if (theme.CellImageIcon != null)
// CellImageIcon = theme.CellImageIcon;
//
// if (theme.CellImageIconUri != null)
// CellImageIconUri = theme.CellImageIconUri;
if (theme.CellBackgroundColor != null)
CellBackgroundColor = theme.CellBackgroundColor;
if (theme.CellBackgroundUri != null)
CellBackgroundUri = theme.CellBackgroundUri;
if (theme.CellBackgroundImage != null)
CellBackgroundImage = theme.CellBackgroundImage;
if (theme.TextLabel != null)
TextLabel = theme.TextLabel;
if (theme.TextFont != null)
TextFont = theme.TextFont;
if (theme.TextColor != null)
TextColor = theme.TextColor;
if (theme.TextShadowOffset != SizeF.Empty)
TextShadowOffset = theme.TextShadowOffset;
if (theme.TextShadowColor != null)
TextShadowColor = theme.TextShadowColor;
if (theme.TextHighlightColor != null)
TextHighlightColor = theme.TextHighlightColor;
TextAlignment = theme.TextAlignment;
if (theme.DetailTextLabel != null)
DetailTextLabel = theme.DetailTextLabel;
if (theme.DetailTextFont != null)
DetailTextFont = theme.DetailTextFont;
if (theme.DetailTextColor != null)
DetailTextColor = theme.DetailTextColor;
if (theme.DetailTextShadowOffset != SizeF.Empty)
TextShadowOffset = theme.DetailTextShadowOffset;
if (theme.DetailTextShadowColor != null)
TextShadowColor = theme.DetailTextShadowColor;
if (theme.DetailTextHighlightColor != null)
DetailTextHighlightColor = theme.DetailTextHighlightColor;
DetailTextAlignment = theme.DetailTextAlignment;
if (theme.PlaceholderColor != null)
PlaceholderColor = theme.PlaceholderColor;
if (theme.PlaceholderAlignment != UITextAlignment.Right)
PlaceholderAlignment = theme.PlaceholderAlignment;
if (theme.SeparatorColor != null)
SeparatorColor = theme.SeparatorColor;
if (theme.SeparatorStyle.HasValue)
SeparatorStyle = theme.SeparatorStyle;
if (theme.TableViewStyle.HasValue)
TableViewStyle = theme.TableViewStyle;
if (theme.BarStyle.HasValue)
BarStyle = theme.BarStyle;
if (theme.BarTintColor != null)
BarTintColor = theme.BarTintColor;
if (theme.BarImage != null)
BarImage = theme.BarImage;
if (theme.BarTranslucent)
BarTranslucent = theme.BarTranslucent;
HeaderTextAlignment = theme.HeaderTextAlignment;
if (theme.HeaderTextFont != null)
HeaderTextFont = theme.HeaderTextFont;
if (theme.HeaderTextColor != null)
HeaderTextColor = theme.HeaderTextColor;
if (theme.HeaderTextShadowOffset != SizeF.Empty)
HeaderTextShadowOffset = theme.HeaderTextShadowOffset;
if (theme.HeaderTextShadowColor != null)
HeaderTextShadowColor = theme.HeaderTextShadowColor;
FooterTextAlignment = theme.FooterTextAlignment;
if (theme.FooterTextFont != null)
FooterTextFont = theme.FooterTextFont;
if (theme.FooterTextColor != null)
FooterTextColor = theme.FooterTextColor;
if (theme.FooterTextShadowOffset != SizeF.Empty)
FooterTextShadowOffset = theme.FooterTextShadowOffset;
if (theme.FooterTextShadowColor != null)
FooterTextShadowColor = theme.FooterTextShadowColor;
if (theme.DrawContentViewAction != null)
{
DrawContentViewAction = theme.DrawContentViewAction;
}
if (theme.BackgroundColor != null)
BackgroundColor = theme.BackgroundColor;
if (theme.BackgroundUri != null)
BackgroundUri = theme.BackgroundUri;
if (theme.BackgroundImage != null)
BackgroundImage = theme.BackgroundImage;
}
}
public static Theme CreateTheme(Theme theme)
{
var newTheme = new Theme();
newTheme.MergeTheme(theme);
return newTheme;
}
public void MergeTheme(Theme theme)
{
if (theme != null)
{
Name = theme.Name;
if (theme.CellStyle != UITableViewCellStyle.Default && CellStyle != theme.CellStyle)
{
CellStyle = theme.CellStyle;
}
if (theme.Accessory != Accessory)
{
Accessory = theme.Accessory;
}
// if (theme.CellImageIcon != null)
// CellImageIcon = theme.CellImageIcon;
//
// if (theme.CellImageIconUri != null)
// CellImageIconUri = theme.CellImageIconUri;
if (theme.CellBackgroundColor != null)
{
CellBackgroundColor = theme.CellBackgroundColor;
}
if (theme.CellBackgroundUri != null)
{
CellBackgroundUri = theme.CellBackgroundUri;
}
if (theme.CellBackgroundImage != null)
{
CellBackgroundImage = theme.CellBackgroundImage;
}
if (theme.TextLabel != null)
{
TextLabel = theme.TextLabel;
}
if (theme.TextFont != null)
{
TextFont = theme.TextFont;
}
if (theme.TextColor != null)
{
TextColor = theme.TextColor;
}
if (theme.TextShadowOffset != SizeF.Empty)
{
TextShadowOffset = theme.TextShadowOffset;
}
if (theme.TextShadowColor != null)
{
TextShadowColor = theme.TextShadowColor;
}
if (theme.TextHighlightColor != null)
{
TextHighlightColor = theme.TextHighlightColor;
}
TextAlignment = theme.TextAlignment;
if (theme.DetailTextLabel != null)
{
DetailTextLabel = theme.DetailTextLabel;
}
if (theme.DetailTextFont != null)
{
DetailTextFont = theme.DetailTextFont;
}
if (theme.DetailTextColor != null)
{
DetailTextColor = theme.DetailTextColor;
}
if (theme.DetailTextShadowOffset != SizeF.Empty)
{
TextShadowOffset = theme.DetailTextShadowOffset;
}
if (theme.DetailTextShadowColor != null)
{
TextShadowColor = theme.DetailTextShadowColor;
}
if (theme.DetailTextHighlightColor != null)
{
DetailTextHighlightColor = theme.DetailTextHighlightColor;
}
DetailTextAlignment = theme.DetailTextAlignment;
if (theme.PlaceholderColor != null)
{
PlaceholderColor = theme.PlaceholderColor;
}
if (theme.PlaceholderAlignment != UITextAlignment.Right)
{
PlaceholderAlignment = theme.PlaceholderAlignment;
}
if (theme.SeparatorColor != null)
{
SeparatorColor = theme.SeparatorColor;
}
if (theme.SeparatorStyle.HasValue)
{
SeparatorStyle = theme.SeparatorStyle;
}
if (theme.TableViewStyle.HasValue)
{
TableViewStyle = theme.TableViewStyle;
}
if (theme.BarStyle.HasValue)
{
BarStyle = theme.BarStyle;
}
if (theme.BarTintColor != null)
{
BarTintColor = theme.BarTintColor;
}
if (theme.BarImage != null)
{
BarImage = theme.BarImage;
}
if (theme.BarTranslucent)
{
BarTranslucent = theme.BarTranslucent;
}
HeaderTextAlignment = theme.HeaderTextAlignment;
if (theme.HeaderTextFont != null)
{
HeaderTextFont = theme.HeaderTextFont;
}
if (theme.HeaderTextColor != null)
{
HeaderTextColor = theme.HeaderTextColor;
}
if (theme.HeaderTextShadowOffset != SizeF.Empty)
{
HeaderTextShadowOffset = theme.HeaderTextShadowOffset;
}
if (theme.HeaderTextShadowColor != null)
{
HeaderTextShadowColor = theme.HeaderTextShadowColor;
}
FooterTextAlignment = theme.FooterTextAlignment;
if (theme.FooterTextFont != null)
{
FooterTextFont = theme.FooterTextFont;
}
if (theme.FooterTextColor != null)
{
FooterTextColor = theme.FooterTextColor;
}
if (theme.FooterTextShadowOffset != SizeF.Empty)
{
FooterTextShadowOffset = theme.FooterTextShadowOffset;
}
if (theme.FooterTextShadowColor != null)
{
FooterTextShadowColor = theme.FooterTextShadowColor;
}
if (theme.DrawContentViewAction != null)
{
DrawContentViewAction = theme.DrawContentViewAction;
}
if (theme.BackgroundColor != null)
{
BackgroundColor = theme.BackgroundColor;
}
if (theme.BackgroundUri != null)
{
BackgroundUri = theme.BackgroundUri;
}
if (theme.BackgroundImage != null)
{
BackgroundImage = theme.BackgroundImage;
}
}
}
private static void ApplyElementTheme(Theme theme, IThemeable element, MemberInfo member)
{
if (theme != null)
{
var newTheme = Theme.CreateTheme(theme);
newTheme.MergeTheme(element.Theme);
element.Theme = newTheme;
}
if (member != null)
ApplyMemberTheme(member, element);
}
