From 245d85a887cb81f1e6cbf11f9f2ce3c542fb585c Mon Sep 17 00:00:00 2001
From: "Geunsun, Lee" <gs86.lee@samsung.com>
Date: Tue, 25 Apr 2017 16:43:28 +0900
Subject: [PATCH] Implement VI for the image viewer buttons : Normal/Pressed

Change-Id: Ifdd69c9ffd0c5b93b162a27f009372aff0d7caee
---
 TVMediaHub/TVMediaHub.Tizen/Views/ImageViewer.xaml |   4 +-
 .../TVMediaHub.Tizen/Views/ImageViewer.xaml.cs     | 127 ++++++++++++++++++++-
 2 files changed, 125 insertions(+), 6 deletions(-)

diff --git a/TVMediaHub/TVMediaHub.Tizen/Views/ImageViewer.xaml b/TVMediaHub/TVMediaHub.Tizen/Views/ImageViewer.xaml
index d0c2c48..797a23c 100755
--- a/TVMediaHub/TVMediaHub.Tizen/Views/ImageViewer.xaml
+++ b/TVMediaHub/TVMediaHub.Tizen/Views/ImageViewer.xaml
@@ -75,7 +75,7 @@
                                   Source="btn_viewer_control_zoom_normal.png" />
 
       <Image x:Name="LeftNaviBg" Grid.Row="5" Grid.Column="5" Source="btn_viewer_control_focused.png" Opacity="0"/>
-      <Button Grid.Row="5" Grid.Column="5" x:Name="LeftNativation" Opacity="0"
+      <Button Grid.Row="5" Grid.Column="5" x:Name="LeftNaviBtn" Opacity="0"
               Clicked="LeftBtnClicked" />
       <Controls:CustomImageButton x:Name="LeftImage"
                                   Type="Viewer" SubType="Left"
@@ -83,7 +83,7 @@
                                   Source="btn_viewer_control_left_normal.png" />
 
       <Image x:Name="RightNaviBg"  Grid.Row="5" Grid.Column="7" Source="btn_viewer_control_focused.png" Opacity="0"/>
-      <Button Grid.Row="5" Grid.Column="7" x:Name="RightNativation" Opacity="0"
+      <Button Grid.Row="5" Grid.Column="7" x:Name="RightNaviBtn" Opacity="0"
               Clicked="RightBtnClicked" />
       <Controls:CustomImageButton x:Name="RightImage"
                                   Grid.Row="5" Grid.Column="7"
diff --git a/TVMediaHub/TVMediaHub.Tizen/Views/ImageViewer.xaml.cs b/TVMediaHub/TVMediaHub.Tizen/Views/ImageViewer.xaml.cs
index d27c2ae..e4cf305 100755
--- a/TVMediaHub/TVMediaHub.Tizen/Views/ImageViewer.xaml.cs
+++ b/TVMediaHub/TVMediaHub.Tizen/Views/ImageViewer.xaml.cs
@@ -15,8 +15,10 @@
  */
 
 using System;
+using System.Collections.Generic;
 using System.Windows.Input;
 using Tizen.Xamarin.Forms.Extension;
+using TVMediaHub.Tizen.Controls;
 using TVMediaHub.Tizen.DataModels;
 using TVMediaHub.Tizen.Utils;
 using TVMediaHub.Tizen.ViewModels;
@@ -38,6 +40,10 @@ namespace TVMediaHub.Tizen.Views
         private bool isNaviRunning = false;
         NaviDirection naviDirection = default(NaviDirection);
 
+        private object focusedButton = null;
+
+        private static string ReturnKeyName = "Return";
+
         private ImageViewerInfomation prevContent = null;
 
         public static readonly BindableProperty SavedRotationCommandProperty = BindableProperty.Create("SavedRotationCommand", typeof(ICommand), typeof(ImageViewer), default(ICommand));
@@ -77,6 +83,84 @@ namespace TVMediaHub.Tizen.Views
             PropertyChanged += ImageViewerPropertyChanged;
         }
 
+        private void grabReturnKey()
+        {
+            App.MainWindow.KeyGrab(ReturnKeyName, false);
+
+            App.MainWindow.KeyUp += ReturnKeyUpListener;
+            App.MainWindow.KeyDown += ReturnKeyDownListener;
+        }
+
+        private void ungrabReturnKey()
+        {
+            App.MainWindow.KeyUp -= ReturnKeyUpListener;
+            App.MainWindow.KeyDown -= ReturnKeyDownListener;
+
+            App.MainWindow.KeyUngrab(ReturnKeyName);
+        }
+
+        private void ReturnKeyUpListener(object sender, ElmSharp.EvasKeyEventArgs e)
+        {
+            DbgPort.D("[ImageViwer] key up : " + e.KeyName);
+
+            if (!e.KeyName.Equals(ReturnKeyName))
+            {
+                return;
+            }
+
+            Image focusedBtnBG = null;
+            CustomImageButton focusedCustomImageBtn = null;
+
+            findFocusedItems(out focusedBtnBG, out focusedCustomImageBtn);
+
+            if (focusedBtnBG == null || focusedCustomImageBtn == null)
+            {
+                return;
+            }
+
+            focusedBtnBG.ScaleTo(3, 250);
+            focusedBtnBG.FadeTo(1, 250);
+
+            focusedCustomImageBtn.OnButtonReleased();
+        }
+
+        private void ReturnKeyDownListener(object sender, ElmSharp.EvasKeyEventArgs e)
+        {
+            DbgPort.D("[ImageViewer] key Down : " + e.KeyName);
+
+            if (!e.KeyName.Equals(ReturnKeyName))
+            {
+                return;
+            }
+
+            Image focusedBtnBG = null;
+            CustomImageButton focusedCustomImageBtn = null;
+
+            findFocusedItems(out focusedBtnBG, out focusedCustomImageBtn);
+
+            if (focusedBtnBG == null || focusedCustomImageBtn == null)
+            {
+                return;
+            }
+
+            focusedBtnBG.ScaleTo(1, 250);
+            focusedBtnBG.FadeTo(0, 250);
+
+            focusedCustomImageBtn.OnButtonPressed();
+        }
+
+        private void findFocusedItems(out Image focusedBtnBG, out CustomImageButton focusedCustomImageBtn)
+        {
+            List<Button> buttons = new List<Button> { RotateBtn, ZoomBtn, LeftNaviBtn, RightNaviBtn, SlideShowBtn, OptionBtn };
+            Image[] imageBGs = new Image[6] { RotateBg, ZoomBg, LeftNaviBg, RightNaviBg, SlideShowBg, OptionBG };
+            CustomImageButton[] customImageButtons = new CustomImageButton[6] { RotateImage, ZoomImage, LeftImage, RightImage, SlideShowImage, OptionImage };
+
+            int index = buttons.FindIndex(x => x.Equals(focusedButton));
+
+            focusedBtnBG = imageBGs[index];
+            focusedCustomImageBtn = customImageButtons[index];
+        }
+
         private void InitializeCurrentImage()
         {
             Thumb1.Source = CurrentImage.FilePath;
@@ -222,32 +306,44 @@ namespace TVMediaHub.Tizen.Views
         {
             RotateBtn.Focused += (s, e) =>
             {
+                focusedButton = s;
+
                 RotateBg.ScaleTo(3, 250);
                 RotateBg.FadeTo(1, 250);
             };
             ZoomBtn.Focused += (s, e) =>
             {
+                focusedButton = s;
+
                 ZoomBg.ScaleTo(3, 250);
                 ZoomBg.FadeTo(1, 250);
             };
-            LeftNativation.Focused += (s, e) =>
+            LeftNaviBtn.Focused += (s, e) =>
             {
+                focusedButton = s;
+
                 LeftNaviBg.TranslationX = 7;
                 LeftNaviBg.ScaleTo(3, 250);
                 LeftNaviBg.FadeTo(1, 250);
             };
-            RightNativation.Focused += (s, e) =>
+            RightNaviBtn.Focused += (s, e) =>
             {
+                focusedButton = s;
+
                 RightNaviBg.ScaleTo(3, 250);
                 RightNaviBg.FadeTo(1, 250);
             };
             SlideShowBtn.Focused += (s, e) =>
             {
+                focusedButton = s;
+
                 SlideShowBg.ScaleTo(3, 250);
                 SlideShowBg.FadeTo(1, 250);
             };
             OptionBtn.Focused += (s, e) =>
             {
+                focusedButton = s;
+
                 OptionBG.ScaleTo(3, 250);
                 OptionBG.FadeTo(1, 250);
             };
@@ -262,12 +358,12 @@ namespace TVMediaHub.Tizen.Views
                 ZoomBg.ScaleTo(1, 250);
                 ZoomBg.FadeTo(0, 250);
             };
-            LeftNativation.Unfocused += (s, e) =>
+            LeftNaviBtn.Unfocused += (s, e) =>
             {
                 LeftNaviBg.ScaleTo(1, 250);
                 LeftNaviBg.FadeTo(0, 250);
             };
-            RightNativation.Unfocused += (s, e) =>
+            RightNaviBtn.Unfocused += (s, e) =>
             {
                 RightNaviBg.ScaleTo(1, 250);
                 RightNaviBg.FadeTo(0, 250);
@@ -401,11 +497,34 @@ namespace TVMediaHub.Tizen.Views
             GradientDim.WidthRequest = width;
         }
 
+        protected override void OnAppearing()
+        {
+            base.OnAppearing();
+
+            grabReturnKey();
+        }
+
         protected override void OnDisappearing()
         {
             base.OnDisappearing();
 
+            ungrabReturnKey();
+
             SavedRotationCommand?.Execute(Convert.ToDouble(-1));
+
+            Image focusedBtnBG = null;
+            CustomImageButton focusedCustomImageBtn = null;
+
+            findFocusedItems(out focusedBtnBG, out focusedCustomImageBtn);
+
+            if (focusedBtnBG == null || focusedCustomImageBtn == null)
+            {
+                return;
+            }
+
+            focusedBtnBG.Scale = 1;
+            focusedBtnBG.Opacity = 0;
+            focusedCustomImageBtn.OnButtonReleased();
         }
     }
 }
-- 
2.7.4