NUISamples/NUISamples/NUISamples.TizenTV/examples/view-navi-property.cs

   1 /*
   2  * Copyright (c) 2017 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
  18 using System;
  19 using Tizen.NUI;
  20
  21 namespace MyCSharpExample
  22 {
  23     class Example : NUIApplication
  24     {
  25         const int num = 2;
  26         View[] view;
  27
  28         View lastFocusedView;
  29
  30         protected override void OnCreate()
  31         {
  32             base.OnCreate();
  33             Initialize();
  34         }
  35
  36         public void Initialize()
  37         {
  38             view = new View[2];
  39
  40             for (int i = 0; i < num; i++)
  41             {
  42                 view[i] = new View();
  43                 view[i].Size = new Size(200, 200, 0);
  44                 view[i].BackgroundColor = Color.Blue;
  45                 view[i].Position = new Position(300 + i * 300, 300, 0);
  46                 view[i].Name = "MyView" + i;
  47                 view[i].Focusable = true;
  48                 Stage.Instance.GetDefaultLayer().Add(view[i]);
  49                 view[i].FocusGained += FocusNavigationSample_FocusGained;
  50                 view[i].FocusLost += FocusNavigationSample_FocusLost;
  51                 view[i].KeyEvent += FocusNavigationSample_KeyEvent;
  52             }
  53
  54             view[0].RightFocusableView = view[1];
  55             view[0].LeftFocusableView = view[1];
  56             view[1].RightFocusableView = view[0];
  57             view[1].LeftFocusableView = view[0];
  58
  59             FocusManager.Instance.SetCurrentFocusView(view[0]);
  60             FocusManager.Instance.PreFocusChange += Instance_PreFocusChange;
  61
  62             Stage.Instance.Touch += Instance_Touch;
  63         }
  64
  65         private void Instance_Touch(object sender, Stage.TouchEventArgs e)
  66         {
  67             Tizen.Log.Debug("NUI", "stage touched! set key focus as view[0]!");
  68             FocusManager.Instance.SetCurrentFocusView(view[0]);
  69         }
  70
  71         private bool FocusNavigationSample_KeyEvent(object source, View.KeyEventArgs e)
  72         {
  73             Tizen.Log.Debug("NUI", "...");
  74             View view = source as View;
  75
  76             Tizen.Log.Debug("NUI", "NUI-1 " + "View-" + view.Name + ", Pressed-" + e.Key.KeyPressedName + e.Key.State.ToString());
  77
  78             return false;
  79         }
  80
  81         private void FocusNavigationSample_FocusLost(object sender, EventArgs e)
  82         {
  83             Tizen.Log.Debug("NUI", "...");
  84             View view = sender as View;
  85             view.BackgroundColor = Color.Blue;
  86             view.Scale = new Vector3(1.0f, 1.0f, 1.0f);
  87
  88             Tizen.Log.Debug("NUI", "NUI-2 " + "FocusLost-" + view.Name);
  89         }
  90
  91         private void FocusNavigationSample_FocusGained(object sender, EventArgs e)
  92         {
  93             Tizen.Log.Debug("NUI", "...");
  94             View view = sender as View;
  95             view.BackgroundColor = Color.Red;
  96             view.Scale = new Vector3(1.2f, 1.2f, 1.0f);
  97
  98             Tizen.Log.Debug("NUI", "NUI-3 " + "FocusGained-" + view.Name);
  99         }
 100
 101         private View Instance_PreFocusChange(object source, FocusManager.PreFocusChangeEventArgs e)
 102         {
 103             Tizen.Log.Debug("NUI", "...");
 104             View currentView = (e.CurrentView) ?? lastFocusedView;
 105             View nextView = null;
 106
 107             Tizen.Log.Debug("NUI", "NUI-4 " + "PreFocusChange-" + e.Direction);
 108
 109             if (currentView != null && currentView.HasBody())
 110                 Tizen.Log.Debug("NUI", "NUI-5 " + " Current-" + currentView.Name);
 111
 112             if (currentView)
 113             {
 114                 switch (e.Direction)
 115                 {
 116                     case View.FocusDirection.Left:
 117                         nextView = currentView.LeftFocusableView;
 118                         if (nextView == null)
 119                             Tizen.Log.Debug("NUI", "NUI-6 " + "LeftFocusableView is NULL!!!!");
 120                         else
 121                             Tizen.Log.Debug("NUI", "NUI-7 " + currentView.Name + ".LeftFocusableView =" + nextView.Name);
 122                         break;
 123                     case View.FocusDirection.Right:
 124                         nextView = currentView.RightFocusableView;
 125                         if (nextView == null)
 126                             Tizen.Log.Debug("NUI", "NUI-8 " + "RightFocusableView is NULL!!!!");
 127                         else
 128                             Tizen.Log.Debug("NUI", "NUI-9 " + currentView.Name + ".RightFocusableView =" + nextView.Name);
 129                         break;
 130                     case View.FocusDirection.Up:
 131                         nextView = currentView.UpFocusableView;
 132                         if (nextView == null)
 133                             Tizen.Log.Debug("NUI", "NUI-10 " + "UpFocusableView is NULL!!!!");
 134                         else
 135                             Tizen.Log.Debug("NUI", "NUI-11 " + currentView.Name + ".UpFocusableView =" + nextView.Name);
 136                         break;
 137                     case View.FocusDirection.Down:
 138                         nextView = currentView.DownFocusableView;
 139                         if (nextView == null)
 140                             Tizen.Log.Debug("NUI", "NUI-12 " + "DownFocusableView is NULL!!!!");
 141                         else
 142                             Tizen.Log.Debug("NUI", "NUI-13 " + currentView.Name + ".DownFocusableView =" + nextView.Name);
 143                         break;
 144                     default:
 145                         nextView = null;  //added
 146                         break;
 147                 }
 148             }
 149
 150             if (e.ProposedView == null)
 151             {
 152                 Tizen.Log.Debug("NUI", "NUI-14 " + "ProposedView in NULL!!");
 153             }
 154             else if (e.ProposedView.HasBody())
 155             {
 156                 Tizen.Log.Debug("NUI", "NUI-15 " + "ProposedView-" + e.ProposedView.Name);
 157             }
 158             else
 159             {
 160                 Tizen.Log.Debug("NUI", "NUI-16 " + "ProposedView does NOT have body!!!" + e.ProposedView);
 161             }
 162
 163             nextView = nextView ?? (e.ProposedView) ?? currentView;
 164             lastFocusedView = nextView;
 165
 166             if (nextView != null && nextView.HasBody())
 167                 Tizen.Log.Debug("NUI", "NUI-17 " + "Next-" + nextView.Name);
 168
 169             return nextView;
 170         }
 171
 172         [STAThread]
 173         static void _Main(string[] args)
 174         {
 175             Example example = new Example();
 176             example.Run(args);
 177         }
 178     }
 179 }