test/Tizen.NUI.StyleGuide/Examples/ScrollableBase/ScrollableBaseExample.cs

   1 /*
   2  * Copyright(c) 2022 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17 using System;
  18 using System.ComponentModel;
  19 using System.Collections.Generic;
  20 using Tizen.NUI;
  21 using Tizen.NUI.BaseComponents;
  22 using Tizen.NUI.Components;
  23 using Tizen.NUI.Binding;
  24
  25 namespace Tizen.NUI.StyleGuide
  26 {
  27     // IExample inehrited class will be automatically added in the main examples list.
  28     internal class ScrollableBaseExample : ContentPage, IExample
  29     {
  30         private Window window;
  31         private List<DirectionOption> directionMenu;
  32         public void Activate()
  33         {
  34             Log.Info(this.GetType().Name, $"@@@ this.GetType().Name={this.GetType().Name}, Activate()\n");
  35         }
  36         public void Deactivate()
  37         {
  38             Log.Info(this.GetType().Name, $"@@@ this.GetType().Name={this.GetType().Name}, Deactivate()\n");
  39             window = null;
  40             directionMenu = null;
  41         }
  42
  43         /// Modify this method for adding other examples.
  44         public ScrollableBaseExample() : base()
  45         {
  46             Log.Info(this.GetType().Name, $"{this.GetType().Name} is contructed\n");
  47
  48             // Navigator bar title is added here.
  49             AppBar = new AppBar()
  50             {
  51                 Title = "ScrollableBase Default Style",
  52             };
  53
  54             directionMenu = new List<DirectionOption>();
  55             directionMenu.Add(new DirectionOption("Vertical"));
  56             directionMenu.Add(new DirectionOption("Horizontal"));
  57
  58             // Example root content view.
  59             // you can decorate, add children on this view.
  60             // ScrollableBase need two different style guide.
  61             // so here we adding new CollectionView for 2-depth option.
  62             var directionListView = new CollectionView()
  63             {
  64                 WidthSpecification = LayoutParamPolicies.MatchParent,
  65                 HeightSpecification = LayoutParamPolicies.MatchParent,
  66                 ItemsSource = directionMenu,
  67                 ItemsLayouter = new LinearLayouter(),
  68                 ItemTemplate = new DataTemplate(() =>
  69                 {
  70                     DefaultLinearItem item = new DefaultLinearItem()
  71                     {
  72                         WidthSpecification = LayoutParamPolicies.MatchParent,
  73                     };
  74                     item.Label.SetBinding(TextLabel.TextProperty, "Direction");
  75                     item.Label.HorizontalAlignment = HorizontalAlignment.Begin;
  76                     return item;
  77                 }),
  78                 ScrollingDirection = ScrollableBase.Direction.Vertical,
  79                 SelectionMode = ItemSelectionMode.SingleAlways,
  80             };
  81             directionListView.SelectionChanged += (object colView, SelectionChangedEventArgs ev) =>
  82             {
  83                 if (ev.CurrentSelection.Count == 0) return;
  84                 if (ev.CurrentSelection[0] is DirectionOption directionItem)
  85                 {
  86                     Log.Info(this.GetType().Name, $"{directionItem.Direction} will be activated!\n");
  87                     Page scrollDirPage = new ScrollableBaseDirectionExample(directionItem.Direction);
  88                     window = NUIApplication.GetDefaultWindow();
  89                     window.GetDefaultNavigator().Push(scrollDirPage);
  90                 }
  91                 directionListView.SelectedItem = null;
  92             };
  93
  94             Content = directionListView;
  95         }
  96     }
  97
  98     internal class DirectionOption
  99     {
 100         private string direction;
 101         public string Direction { get => direction; }
 102
 103         public DirectionOption(string dir)
 104         {
 105             direction = dir;
 106         }
 107     }
 108 }