Add ShellSearchView (#121)

* Add ShellSearchView

* Fix the layout issue in ShellSearchResultList

* Enable nullable

* Fix maximum height of ShellSearchResultList

src/Controls/src/Core/Platform/Tizen/Shell/ShellNavBar.cs

@@ -17,7 +17,10 @@ public class ShellNavBar : EBox, IFlyoutBehaviorObserver, IDisposable
  TImage _menuIcon = null;
  TButton _menuButton = null;
  TLabel _title = null;
+ ShellSearchView _searchView = null;
  EvasObject _nativeTitleView = null;
+
+ SearchHandler _searchHandler = null;
  View _titleView = null;
  Page _page = null;
 
@@ -102,6 +105,20 @@ public FlyoutBehavior FlyoutBehavior
  }
  }
 
+ public SearchHandler SearchHandler
+ {
+ get
+ {
+ return _searchHandler;
+ }
+ set
+ {
+ _searchHandler = value;
+ UpdateSearchHandler(_searchHandler);
+ UpdateChildren();
+ }
+ }
+
  public View TitleView
  {
  get
@@ -177,7 +194,7 @@ public void SetPage(Page page)
  {
  _page = page;
  Title = page.Title;
- //SearchHandler = Shell.GetSearchHandler(page);
+ SearchHandler = Shell.GetSearchHandler(page);
  TitleView = Shell.GetTitleView(page);
  UpdateMenuIcon();
  }
@@ -284,17 +301,42 @@ void UpdateTitleView(View titleView)
  }
  }
 
+ void UpdateSearchHandler(SearchHandler handler)
+ {
+ if (_searchView != null)
+ {
+ UnPack(_searchView.NativeView);
+ _searchView.Dispose();
+ _searchView = null;
+ }
+
+ if (handler != null)
+ {
+ _searchView = new ShellSearchView(handler, MauiContext);
+ _searchView.NativeView.Show();
+ PackEnd(_searchView.NativeView);
+ }
+ }
+
  void UpdateChildren()
  {
- if (_titleView != null)
+ if (_searchHandler != null)
+ {
+ _searchView.NativeView.Show();
+ _title?.Hide();
+ _nativeTitleView?.Hide();
+ }
+ else if (_titleView != null)
  {
  _nativeTitleView.Show();
  _title?.Hide();
+ _searchView?.NativeView?.Hide();
  }
  else
  {
  _title.Show();
  _nativeTitleView?.Hide();
+ _searchView?.NativeView?.Hide();
  }
  }
 
@@ -324,7 +366,11 @@ void OnLayout()
  contentBound.Width -= (menuBound.Width + menuMargin + titleHMargin * 2);
  contentBound.Height -= titleVMargin * 2;
 
- if (_titleView != null)
+ if (_searchView != null)
+ {
+ _searchView.NativeView.Geometry = contentBound;
+ }
+ else if (_titleView != null)
  {
  _nativeTitleView.Geometry = contentBound;
  }

src/Controls/src/Core/Platform/Tizen/Shell/ShellSearchResultList.cs

@@ -0,0 +1,99 @@
+using System;
+using System.Collections.Generic;
+using ElmSharp;
+using Tizen.UIExtensions.ElmSharp;
+using EColor = ElmSharp.Color;
+
+namespace Microsoft.Maui.Controls.Platform
+{
+ public class ShellSearchResultList : GenList
+ {
+ GenItemClass _defaultClass = null;
+ IReadOnlyList<object> _itemsSource;
+
+ public ShellSearchResultList(IMauiContext context) : base(context?.Context?.BaseLayout)
+ {
+ MauiContext = context;
+
+ SetAlignment(-1, -1);
+ SetWeight(1, 1);
+ AllowFocus(true);
+
+ Homogeneous = true;
+ SelectionMode = GenItemSelectionMode.Always;
+ BackgroundColor = EColor.White;
+
+ _defaultClass = new GenItemClass(ThemeConstants.GenItemClass.Styles.Full)
+ {
+ GetContentHandler = GetContent,
+ };
+ }
+
+ public int Height { get; private set; }
+
+ public IReadOnlyList<object> ItemsSource
+ {
+ get => _itemsSource;
+ set
+ {
+ Clear();
+ Height = 0;
+
+ _itemsSource = value;
+ foreach (var item in _itemsSource)
+ {
+ Append(item);
+ }
+ }
+ }
+
+ protected IMauiContext MauiContext { get; private set; }
+
+ protected EvasObject NativeParent
+ {
+ get => MauiContext?.Context?.BaseLayout;
+ }
+
+ public void UpdateLayout()
+ {
+ if (FirstItem != null && Height == 0)
+ {
+ var view = FirstItem.Data as View;
+ var native = view.ToNative(MauiContext);
+ var measured = view.Measure(DPExtensions.ConvertToScaledDP(Geometry.Width), double.PositiveInfinity);
+ Height = DPExtensions.ConvertToScaledPixel(measured.Request.Height);
+ }
+
+ var bound = Geometry;
+ bound.Height = Math.Min(Height * _itemsSource.Count, bound.Width);
+ Geometry = bound;
+
+ UpdateRealizedItems();
+ }
+
+ public DataTemplate ItemTemplate { get; set; }
+
+ EvasObject GetContent(object data, string part)
+ {
+ var view = data as View;
+ var native = view.ToNative(MauiContext);
+
+ if (Height == 0)
+ {
+ var measured = view.Measure(DPExtensions.ConvertToScaledDP(Geometry.Width), double.PositiveInfinity);
+ Height = DPExtensions.ConvertToScaledPixel(measured.Request.Height);
+ }
+
+ native.MinimumHeight = Height;
+ return native;
+ }
+
+ void Append(object data)
+ {
+ var view = ItemTemplate.CreateContent() as View;
+ view.Parent = Shell.Current;
+ view.BindingContext = data;
+ Append(_defaultClass, view);
+ }
+ }
+}