[NUI] Fix some typos. (#1807)
[platform/core/csapi/tizenfx.git] / src / Tizen.NUI.Components / Controls / Button.cs
index f6340ba..c45c3d2 100755 (executable)
@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2019 Samsung Electronics Co., Ltd.
+ * Copyright(c) 2020 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,6 +17,8 @@
 using System;
 using System.ComponentModel;
 using Tizen.NUI.BaseComponents;
+using Tizen.NUI.Binding;
+using Tizen.NUI.Components.Extension;
 
 namespace Tizen.NUI.Components
 {
@@ -25,21 +27,109 @@ namespace Tizen.NUI.Components
     /// Button may contain text or an icon.
     /// </summary>
     /// <since_tizen> 6 </since_tizen>
-    public class Button : Control
+    public partial class Button : Control
     {
-        private ImageView backgroundImage;
-        private ImageView shadowImage;
-        private ImageView overlayImage;
-
-        private TextLabel buttonText;
-        private ImageView buttonIcon;
+        /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public static readonly BindableProperty IconRelativeOrientationProperty = BindableProperty.Create(nameof(IconRelativeOrientation), typeof(IconOrientation?), typeof(Button), null, propertyChanged: (bindable, oldValue, newValue) =>
+        {
+            var instance = (Button)bindable;
+            if (newValue != null)
+            {
+                if (instance.Style != null && instance.Style.IconRelativeOrientation != (IconOrientation?)newValue)
+                {
+                    instance.Style.IconRelativeOrientation = (IconOrientation?)newValue;
+                    instance.UpdateUIContent();
+                }
+            }
+        },
+        defaultValueCreator: (bindable) =>
+        {
+            var instance = (Button)bindable;
+            return instance.Style?.IconRelativeOrientation;
+        });
+        /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public static readonly BindableProperty IsEnabledProperty = BindableProperty.Create(nameof(IsEnabled), typeof(bool), typeof(Button), true, propertyChanged: (bindable, oldValue, newValue) =>
+        {
+            var instance = (Button)bindable;
+            if (newValue != null)
+            {
+                instance.isEnabled = (bool)newValue;
+                instance.UpdateState();
+            }
+        },
+        defaultValueCreator: (bindable) =>
+        {
+            var instance = (Button)bindable;
+            return instance.isEnabled;
+        });
+        /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public static readonly BindableProperty IsSelectedProperty = BindableProperty.Create(nameof(IsSelected), typeof(bool), typeof(Button), true, propertyChanged: (bindable, oldValue, newValue) =>
+        {
+            var instance = (Button)bindable;
+            if (newValue != null)
+            {
+                instance.isSelected = (bool)newValue;
+                instance.UpdateState();
+            }
+        },
+        defaultValueCreator: (bindable) =>
+        {
+            var instance = (Button)bindable;
+            return instance.isSelected;
+        });
+        /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public static readonly BindableProperty IsSelectableProperty = BindableProperty.Create(nameof(IsSelectable), typeof(bool), typeof(Button), true, propertyChanged: (bindable, oldValue, newValue) =>
+        {
+            var instance = (Button)bindable;
+            if (newValue != null)
+            {
+                instance.Style.IsSelectable = (bool)newValue;
+            }
+        },
+        defaultValueCreator: (bindable) =>
+        {
+            var instance = (Button)bindable;
+            return instance.Style?.IsSelectable ?? false;
+        });
+        /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public static readonly BindableProperty IconPaddingProperty = BindableProperty.Create(nameof(IconPadding), typeof(Extents), typeof(Button), null, propertyChanged: (bindable, oldValue, newValue) =>
+        {
+            var instance = (Button)bindable;
+            if (null != newValue && null != instance.Style?.IconPadding)
+            {
+                instance.Style.IconPadding.CopyFrom((Extents)newValue);
+                instance.UpdateUIContent();
+            }
+        },
+        defaultValueCreator: (bindable) =>
+        {
+            var instance = (Button)bindable;
+            return instance.Style?.IconPadding;
+        });
+        /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public static readonly BindableProperty TextPaddingProperty = BindableProperty.Create(nameof(TextPadding), typeof(Extents), typeof(Button), null, propertyChanged: (bindable, oldValue, newValue) =>
+        {
+            var instance = (Button)bindable;
+            if (null != newValue && null != instance.Style?.TextPadding)
+            {
+                instance.Style.TextPadding.CopyFrom((Extents)newValue);
+                instance.UpdateUIContent();
+            }
+        },
+        defaultValueCreator: (bindable) =>
+        {
+            var instance = (Button)bindable;
+            return instance.Style?.TextPadding;
+        });
 
-        private ButtonAttributes buttonAttributes;
-        private EventHandler<StateChangedEventArgs> stateChangeHander;
+        static Button() { }
 
-        private bool isSelected = false;
-        private bool isEnabled = true;
-        private bool isPressed = false;
         /// <summary>
         /// Creates a new instance of a Button.
         /// </summary>
@@ -48,48 +138,50 @@ namespace Tizen.NUI.Components
         {
             Initialize();
         }
+
         /// <summary>
         /// Creates a new instance of a Button with style.
         /// </summary>
         /// <param name="style">Create Button by special style defined in UX.</param>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen> 8 </since_tizen>
         public Button(string style) : base(style)
         {
             Initialize();
         }
+
         /// <summary>
-        /// Creates a new instance of a Button with attributes.
+        /// Creates a new instance of a Button with style.
         /// </summary>
-        /// <param name="attributes">Create Button by attributes customized by user.</param>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public Button(ButtonAttributes attributes) : base(attributes)
+        /// <param name="buttonStyle">Create Button by style customized by user.</param>
+        /// <since_tizen> 8 </since_tizen>
+        public Button(ButtonStyle buttonStyle) : base(buttonStyle)
         {
             Initialize();
         }
+
         /// <summary>
         /// An event for the button clicked signal which can be used to subscribe or unsubscribe the event handler provided by the user.<br />
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
         public event EventHandler<ClickEventArgs> ClickEvent;
+
         /// <summary>
         /// An event for the button state changed signal which can be used to subscribe or unsubscribe the event handler provided by the user.<br />
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
+        [Obsolete("Deprecated in API8; Will be removed in API10. Please use View.ControlStateChangedEvent")]
         public event EventHandler<StateChangedEventArgs> StateChangedEvent
         {
             add
             {
-                stateChangeHander += value;
+                stateChangeHandler += value;
             }
             remove
             {
-                stateChangeHander -= value;
+                stateChangeHandler -= value;
             }
         }
+
         /// <summary>
         /// Icon orientation.
         /// </summary>
@@ -117,202 +209,132 @@ namespace Tizen.NUI.Components
             /// <since_tizen> 6 </since_tizen>
             Right,
         }
+
         /// <summary>
-        /// Flag to decide Button can be selected or not.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        public bool IsSelectable
-        {
-            get
-            {
-                return buttonAttributes?.IsSelectable ?? false;
-            }
-            set
-            {
-                buttonAttributes.IsSelectable = value;
-            }
-        }
-        /// <summary>
-        /// Background image's resource url in Button.
+        /// Button's icon part.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public string BackgroundImageURL
+        /// <since_tizen> 8 </since_tizen>
+        public ImageView Icon
         {
             get
             {
-                return buttonAttributes?.BackgroundImageAttributes?.ResourceURL?.All;
-            }
-            set
-            {
-                if (value != null)
+                if (null == buttonIcon)
                 {
-                    CreateBackgroundAttributes();
-                    if (buttonAttributes.BackgroundImageAttributes.ResourceURL == null)
+                    buttonIcon = CreateIcon();
+                    if (null != Extension)
                     {
-                        buttonAttributes.BackgroundImageAttributes.ResourceURL = new StringSelector();
+                        buttonIcon = Extension.OnCreateIcon(this, buttonIcon);
                     }
-                    buttonAttributes.BackgroundImageAttributes.ResourceURL.All = value;
-                    RelayoutRequest();
+                    Add(buttonIcon);
+                    buttonIcon.Relayout += OnIconRelayout;
                 }
+                return buttonIcon;
             }
-        }
-        /// <summary>
-        /// Background image's border in Button.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public Rectangle BackgroundImageBorder
-        {
-            get
-            {
-                return buttonAttributes?.BackgroundImageAttributes?.Border?.All;
-            }
-            set
+            internal set
             {
-                if (value != null)
-                {
-                    CreateBackgroundAttributes();
-                    if (buttonAttributes.BackgroundImageAttributes.Border == null)
-                    {
-                        buttonAttributes.BackgroundImageAttributes.Border = new RectangleSelector();
-                    }
-                    buttonAttributes.BackgroundImageAttributes.Border.All = value;
-                    RelayoutRequest();
-                }
+                buttonIcon = value;
             }
         }
+
         /// <summary>
-        /// Shadow image's resource url in Button.
+        /// Button's overlay image part.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public string ShadowImageURL
+        /// <since_tizen> 8 </since_tizen>
+        public ImageView OverlayImage
         {
             get
             {
-                return buttonAttributes?.ShadowImageAttributes?.ResourceURL?.All;
-            }
-            set
-            {
-                if (value != null)
+                if (null == overlayImage)
                 {
-                    CreateShadowAttributes();
-                    if (buttonAttributes.ShadowImageAttributes.ResourceURL == null)
+                    overlayImage = CreateOverlayImage();
+                    if (null != Extension)
                     {
-                        buttonAttributes.ShadowImageAttributes.ResourceURL = new StringSelector();
+                        overlayImage = Extension.OnCreateOverlayImage(this, overlayImage);
                     }
-                    buttonAttributes.ShadowImageAttributes.ResourceURL.All = value;
-                    RelayoutRequest();
+                    overlayImage.WidthResizePolicy = ResizePolicyType.FillToParent;
+                    overlayImage.HeightResizePolicy = ResizePolicyType.FillToParent;
+                    Add(overlayImage);
                 }
+                return overlayImage;
             }
-        }
-        /// <summary>
-        /// Shadow image's border in Button.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public Rectangle ShadowImageBorder
-        {
-            get
-            {
-                return buttonAttributes?.ShadowImageAttributes?.Border?.All;
-            }
-            set
+            internal set
             {
-                if (value != null)
-                {
-                    CreateShadowAttributes();
-                    if (buttonAttributes.ShadowImageAttributes.Border == null)
-                    {
-                        buttonAttributes.ShadowImageAttributes.Border = new RectangleSelector();
-                    }
-                    buttonAttributes.ShadowImageAttributes.Border.All = value;
-                    RelayoutRequest();
-                }
+                overlayImage = value;
             }
         }
+
         /// <summary>
-        /// Overlay image's resource url in Button.
+        /// Button's text part.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public string OverlayImageURL
+        /// <since_tizen> 8 </since_tizen>
+        public TextLabel TextLabel
         {
             get
             {
-                return buttonAttributes?.OverlayImageAttributes?.ResourceURL?.All;
-            }
-            set
-            {
-                if (value != null)
+                if (null == buttonText)
                 {
-                    CreateOverlayAttributes();
-                    if (buttonAttributes.OverlayImageAttributes.ResourceURL == null)
+                    buttonText = CreateText();
+                    if (null != Extension)
                     {
-                        buttonAttributes.OverlayImageAttributes.ResourceURL = new StringSelector();
+                        buttonText = Extension.OnCreateText(this, buttonText);
                     }
-                    buttonAttributes.OverlayImageAttributes.ResourceURL.All = value;
-                    RelayoutRequest();
+                    buttonText.HorizontalAlignment = HorizontalAlignment.Center;
+                    buttonText.VerticalAlignment = VerticalAlignment.Center;
+                    Add(buttonText);
                 }
+                return buttonText;
+            }
+            internal set
+            {
+                buttonText = value;
             }
         }
+
         /// <summary>
-        /// Overlay image's border in Button.
+        /// Return a copied Style instance of Button
+        /// </summary>
+        /// <remarks>
+        /// It returns copied Style instance and changing it does not effect to the Button.
+        /// Style setting is possible by using constructor or the function of ApplyStyle(ViewStyle viewStyle)
+        /// </remarks>
+        /// <since_tizen> 8 </since_tizen>
+        public new ButtonStyle Style => ViewStyle as ButtonStyle;
+
+        /// <summary>
+        /// The text of Button.
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public Rectangle OverlayImageBorder
+        public string Text
         {
             get
             {
-                return buttonAttributes?.OverlayImageAttributes?.Border?.All;
+                return Style?.Text?.Text?.GetValue(ControlState);
             }
             set
             {
-                if (value != null)
+                if (null != Style?.Text)
                 {
-                    CreateOverlayAttributes();
-                    if (buttonAttributes.OverlayImageAttributes.Border == null)
-                    {
-                        buttonAttributes.OverlayImageAttributes.Border = new RectangleSelector();
-                    }
-                    buttonAttributes.OverlayImageAttributes.Border.All = value;
-                    RelayoutRequest();
+                    Style.Text.Text = value;
                 }
             }
         }
+
         /// <summary>
-        /// Text string in Button.
+        /// Flag to decide Button can be selected or not.
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
-        public string Text
+        public bool IsSelectable
         {
             get
             {
-                return buttonAttributes?.TextAttributes?.Text?.All;
+                return (bool)GetValue(IsSelectableProperty);
             }
             set
             {
-                if (value != null)
-                {
-                    CreateTextAttributes();
-                    if(buttonAttributes.TextAttributes.Text == null)
-                    {
-                        buttonAttributes.TextAttributes.Text = new StringSelector();
-                    }
-                    buttonAttributes.TextAttributes.Text.All = value;
-
-                    RelayoutRequest();
-                }
+                SetValue(IsSelectableProperty, value);
             }
         }
+
         /// <summary>
         /// Translate text string in Button.
         /// </summary>
@@ -321,23 +343,17 @@ namespace Tizen.NUI.Components
         {
             get
             {
-                return buttonAttributes?.TextAttributes?.TranslatableText?.All;
+                return Style?.Text?.TranslatableText?.All;
             }
             set
             {
-                if (value != null)
+                if (null != Style?.Text)
                 {
-                    CreateTextAttributes();
-                    if (buttonAttributes.TextAttributes.TranslatableText == null)
-                    {
-                        buttonAttributes.TextAttributes.TranslatableText = new StringSelector();
-                    }
-                    buttonAttributes.TextAttributes.TranslatableText.All = value;
-
-                    RelayoutRequest();
+                    Style.Text.TranslatableText = value;
                 }
             }
         }
+
         /// <summary>
         /// Text point size in Button.
         /// </summary>
@@ -346,19 +362,17 @@ namespace Tizen.NUI.Components
         {
             get
             {
-                return buttonAttributes?.TextAttributes?.PointSize?.All ?? 0;
+                return Style?.Text?.PointSize?.All ?? 0;
             }
             set
             {
-                CreateTextAttributes();
-                if (buttonAttributes.TextAttributes.PointSize == null)
+                if (null != Style?.Text)
                 {
-                    buttonAttributes.TextAttributes.PointSize = new FloatSelector();
+                    Style.Text.PointSize = value;
                 }
-                buttonAttributes.TextAttributes.PointSize.All = value;
-                RelayoutRequest();
             }
         }
+
         /// <summary>
         /// Text font family in Button.
         /// </summary>
@@ -367,15 +381,17 @@ namespace Tizen.NUI.Components
         {
             get
             {
-                return buttonAttributes?.TextAttributes?.FontFamily;
+                return Style?.Text?.FontFamily.All;
             }
             set
             {
-                CreateTextAttributes();
-                buttonAttributes.TextAttributes.FontFamily = value;
-                RelayoutRequest();
+                if (null != Style?.Text)
+                {
+                    Style.Text.FontFamily = value;
+                }
             }
         }
+
         /// <summary>
         /// Text color in Button.
         /// </summary>
@@ -384,19 +400,17 @@ namespace Tizen.NUI.Components
         {
             get
             {
-                return buttonAttributes?.TextAttributes?.TextColor?.All;
+                return Style?.Text?.TextColor?.All;
             }
             set
             {
-                CreateTextAttributes();
-                if (buttonAttributes.TextAttributes.TextColor == null)
+                if (null != Style?.Text)
                 {
-                    buttonAttributes.TextAttributes.TextColor = new ColorSelector();
+                    Style.Text.TextColor = value;
                 }
-                buttonAttributes.TextAttributes.TextColor.All = value;
-                RelayoutRequest();
             }
         }
+
         /// <summary>
         /// Text horizontal alignment in Button.
         /// </summary>
@@ -405,15 +419,17 @@ namespace Tizen.NUI.Components
         {
             get
             {
-                return buttonAttributes?.TextAttributes?.HorizontalAlignment ?? HorizontalAlignment.Center;
+                return Style?.Text?.HorizontalAlignment ?? HorizontalAlignment.Center;
             }
             set
             {
-                CreateTextAttributes();
-                buttonAttributes.TextAttributes.HorizontalAlignment = value;
-                RelayoutRequest();
+                if (null != Style?.Text)
+                {
+                    Style.Text.HorizontalAlignment = value;
+                }
             }
         }
+
         /// <summary>
         /// Icon image's resource url in Button.
         /// </summary>
@@ -422,22 +438,17 @@ namespace Tizen.NUI.Components
         {
             get
             {
-                return buttonAttributes?.IconAttributes?.ResourceURL?.All;
+                return Style?.Icon?.ResourceUrl?.All;
             }
             set
             {
-                if (value != null)
+                if (null != Style?.Icon)
                 {
-                    CreateIconAttributes();
-                    if (buttonAttributes.IconAttributes.ResourceURL == null)
-                    {
-                        buttonAttributes.IconAttributes.ResourceURL = new StringSelector();
-                    }
-                    buttonAttributes.IconAttributes.ResourceURL.All = value;
-                    RelayoutRequest();
+                    Style.Icon.ResourceUrl = value;
                 }
             }
         }
+
         /// <summary>
         /// Text string selector in Button.
         /// </summary>
@@ -446,230 +457,118 @@ namespace Tizen.NUI.Components
         {
             get
             {
-                return buttonAttributes?.TextAttributes?.Text;
+                return textSelector;
             }
             set
             {
-                if (value != null)
+                if (value == null || textSelector == null)
                 {
-                    CreateTextAttributes();
-                    buttonAttributes.TextAttributes.Text = value.Clone() as StringSelector;
-                    RelayoutRequest();
+                    Tizen.Log.Fatal("NUI", "[Exception] Button.TextSelector is null");
+                    throw new NullReferenceException("Button.TextSelector is null");
                 }
-            }
-        }
-        /// <summary>
-        /// Translateable text string selector in Button.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        public StringSelector TranslatableTextSelector
-        {
-            get
-            {
-                return buttonAttributes?.TextAttributes?.TranslatableText;
-            }
-            set
-            {
-                if (value != null)
-                {
-                    CreateTextAttributes();
-                    buttonAttributes.TextAttributes.TranslatableText = value.Clone() as StringSelector;
-                    RelayoutRequest();
-                }
-            }
-        }
-        /// <summary>
-        /// Text color selector in Button.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        public ColorSelector TextColorSelector
-        {
-            get
-            {
-                return buttonAttributes?.TextAttributes?.TextColor;
-            }
-            set
-            {
-                if(value != null)
+                else
                 {
-                    CreateTextAttributes();
-                    buttonAttributes.TextAttributes.TextColor = value.Clone() as ColorSelector;
-                    RelayoutRequest();
+                    textSelector.Clone(value);
                 }
             }
         }
+
         /// <summary>
-        /// Text font size selector in Button.
+        /// Translateable text string selector in Button.
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
-        public FloatSelector PointSizeSelector
+        public StringSelector TranslatableTextSelector
         {
             get
             {
-                return buttonAttributes?.TextAttributes?.PointSize;
+                return translatableTextSelector;
             }
             set
             {
-                if (value != null)
+                if (value == null || translatableTextSelector == null)
                 {
-                    CreateTextAttributes();
-                    buttonAttributes.TextAttributes.PointSize = value.Clone() as FloatSelector;
-                    RelayoutRequest();
+                    Tizen.Log.Fatal("NUI", "[Exception] Button.TranslatableTextSelector is null");
+                    throw new NullReferenceException("Button.TranslatableTextSelector is null");
                 }
-            }
-        }
-        /// <summary>
-        /// Icon image's resource url selector in Button.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        public StringSelector IconURLSelector
-        {
-            get
-            {
-                return buttonAttributes?.IconAttributes?.ResourceURL;
-            }
-            set
-            {
-                if (value != null)
+                else
                 {
-                    CreateIconAttributes();
-                    buttonAttributes.IconAttributes.ResourceURL = value.Clone() as StringSelector;
-                    RelayoutRequest();
+                    translatableTextSelector.Clone(value);
                 }
             }
         }
+
         /// <summary>
-        /// Background image's resource url selector in Button.
+        /// Text color selector in Button.
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public StringSelector BackgroundImageURLSelector
+        public ColorSelector TextColorSelector
         {
             get
             {
-                return buttonAttributes?.BackgroundImageAttributes?.ResourceURL;
+                return textColorSelector;
             }
             set
             {
-                if (value != null)
+                if (value == null || textColorSelector == null)
                 {
-                    CreateBackgroundAttributes();
-                    buttonAttributes.BackgroundImageAttributes.ResourceURL = value.Clone() as StringSelector;
-                    RelayoutRequest();
+                    Tizen.Log.Fatal("NUI", "[Exception] Button.textColorSelector is null");
+                    throw new NullReferenceException("Button.textColorSelector is null");
                 }
-            }
-        }
-        /// <summary>
-        /// Background image's border selector in Button.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public RectangleSelector BackgroundImageBorderSelector
-        {
-            get
-            {
-                return buttonAttributes?.BackgroundImageAttributes?.Border;
-            }
-            set
-            {
-                if (value != null)
+                else
                 {
-                    CreateBackgroundAttributes();
-                    buttonAttributes.BackgroundImageAttributes.Border = value.Clone() as RectangleSelector;
-                    RelayoutRequest();
+                    textColorSelector.Clone(value);
                 }
             }
         }
+
         /// <summary>
-        /// Shadow image's resource url selector in Button.
+        /// Text font size selector in Button.
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public StringSelector ShadowImageURLSelector
+        public FloatSelector PointSizeSelector
         {
             get
             {
-                return buttonAttributes?.ShadowImageAttributes?.ResourceURL;
+                return pointSizeSelector;
             }
             set
             {
-                if (value != null)
+                if (value == null || pointSizeSelector == null)
                 {
-                    CreateShadowAttributes();
-                    buttonAttributes.ShadowImageAttributes.ResourceURL = value.Clone() as StringSelector;
-                    RelayoutRequest();
+                    Tizen.Log.Fatal("NUI", "[Exception] Button.pointSizeSelector is null");
+                    throw new NullReferenceException("Button.pointSizeSelector is null");
                 }
-            }
-        }
-        /// <summary>
-        /// Shadow image's border selector in Button.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public RectangleSelector ShadowImageBorderSelector
-        {
-            get
-            {
-                return buttonAttributes?.ShadowImageAttributes?.Border;
-            }
-            set
-            {
-                if (value != null)
+                else
                 {
-                    CreateShadowAttributes();
-                    buttonAttributes.ShadowImageAttributes.Border = value.Clone() as RectangleSelector;
-                    RelayoutRequest();
+                    pointSizeSelector.Clone(value);
                 }
             }
         }
+
         /// <summary>
-        /// Overlay image's resource url selector in Button.
+        /// Icon image's resource url selector in Button.
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public StringSelector OverlayImageURLSelector
+        public StringSelector IconURLSelector
         {
             get
             {
-                return buttonAttributes?.OverlayImageAttributes?.ResourceURL;
+                return iconURLSelector;
             }
             set
             {
-                if (value != null)
+                if (value == null || iconURLSelector == null)
                 {
-                    CreateOverlayAttributes();
-                    buttonAttributes.OverlayImageAttributes.ResourceURL = value.Clone() as StringSelector;
-                    RelayoutRequest();
+                    Tizen.Log.Fatal("NUI", "[Exception] Button.iconURLSelector is null");
+                    throw new NullReferenceException("Button.iconURLSelector is null");
                 }
-            }
-        }
-        /// <summary>
-        /// Overlay image's border selector in Button.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        public RectangleSelector OverlayImageBorderSelector
-        {
-            get
-            {
-                return buttonAttributes?.OverlayImageAttributes?.Border;
-            }
-            set
-            {
-                if (value != null)
+                else
                 {
-                    CreateOverlayAttributes();
-                    buttonAttributes.OverlayImageAttributes.Border = value.Clone() as RectangleSelector;
-                    RelayoutRequest();
+                    iconURLSelector.Clone(value);
                 }
             }
         }
+
         /// <summary>
         /// Flag to decide selected state in Button.
         /// </summary>
@@ -678,14 +577,14 @@ namespace Tizen.NUI.Components
         {
             get
             {
-                return isSelected;
+                return (bool)GetValue(IsSelectedProperty);
             }
             set
             {
-                isSelected = value;
-                UpdateState();
+                SetValue(IsSelectedProperty, value);
             }
         }
+
         /// <summary>
         /// Flag to decide enable or disable in Button.
         /// </summary>
@@ -694,34 +593,27 @@ namespace Tizen.NUI.Components
         {
             get
             {
-                return isEnabled;
+                return (bool)GetValue(IsEnabledProperty);
             }
             set
             {
-                isEnabled = value;
-                UpdateState();
+                SetValue(IsEnabledProperty, value);
             }
         }
 
         /// <summary>
         /// Icon relative orientation in Button, work only when show icon and text.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen> 8 </since_tizen>
         public IconOrientation? IconRelativeOrientation
         {
             get
             {
-                return buttonAttributes?.IconRelativeOrientation;
+                return (IconOrientation?)GetValue(IconRelativeOrientationProperty);
             }
             set
             {
-                if(buttonAttributes != null && buttonAttributes.IconRelativeOrientation != value)
-                {
-                    buttonAttributes.IconRelativeOrientation = value;
-                    RelayoutRequest();
-                }
+                SetValue(IconRelativeOrientationProperty, value);
             }
         }
 
@@ -731,29 +623,8 @@ namespace Tizen.NUI.Components
         /// <since_tizen> 6 </since_tizen>
         public Extents IconPadding
         {
-            get
-            {
-                if (null == buttonAttributes || null == buttonAttributes.IconAttributes)
-                {
-                    return null;
-                }
-                else
-                {
-                    return new Extents((ushort)buttonAttributes.IconAttributes.PaddingLeft, (ushort)buttonAttributes.IconAttributes.PaddingRight, (ushort)buttonAttributes.IconAttributes.PaddingTop, (ushort)buttonAttributes.IconAttributes.PaddingBottom);
-                }
-            }
-            set
-            {
-                if (null != value)
-                {
-                    CreateIconAttributes();
-                    buttonAttributes.IconAttributes.PaddingLeft = value.Start;
-                    buttonAttributes.IconAttributes.PaddingRight = value.End;
-                    buttonAttributes.IconAttributes.PaddingTop = value.Top;
-                    buttonAttributes.IconAttributes.PaddingBottom = value.Bottom;
-                    RelayoutRequest();
-                }
-            }
+            get => (Extents)GetValue(IconPaddingProperty);
+            set => SetValue(IconPaddingProperty, value);
         }
 
         /// <summary>
@@ -762,71 +633,11 @@ namespace Tizen.NUI.Components
         /// <since_tizen> 6 </since_tizen>
         public Extents TextPadding
         {
-            get
-            {
-                if (null == buttonAttributes || null == buttonAttributes.TextAttributes)
-                {
-                    return null;
-                }
-                else
-                {
-                    return new Extents((ushort)buttonAttributes.TextAttributes.PaddingLeft, (ushort)buttonAttributes.TextAttributes.PaddingRight, (ushort)buttonAttributes.TextAttributes.PaddingTop, (ushort)buttonAttributes.TextAttributes.PaddingBottom);
-                }
-            }
-            set
-            {
-                if (null != value)
-                {
-                    CreateTextAttributes();
-                    buttonAttributes.TextAttributes.PaddingLeft = value.Start;
-                    buttonAttributes.TextAttributes.PaddingRight = value.End;
-                    buttonAttributes.TextAttributes.PaddingTop = value.Top;
-                    buttonAttributes.TextAttributes.PaddingBottom = value.Bottom;
-                    RelayoutRequest();
-                }
-            }
+            get => (Extents)GetValue(TextPaddingProperty);
+            set => SetValue(TextPaddingProperty, value);
         }
 
         /// <summary>
-        /// Dispose Button and all children on it.
-        /// </summary>
-        /// <param name="type">Dispose type.</param>
-        /// <since_tizen> 6 </since_tizen>
-        protected override void Dispose(DisposeTypes type)
-        {
-            if (disposed)
-            {
-                return;
-            }
-
-            if (type == DisposeTypes.Explicit)
-            {
-                if (buttonIcon != null)
-                {
-                    buttonIcon.Relayout -= OnIconRelayout;
-                    Utility.Dispose(buttonIcon);
-                }
-                if (buttonText != null)
-                {
-                    Utility.Dispose(buttonText);
-                }
-                if (overlayImage != null)
-                {
-                    Utility.Dispose(overlayImage);
-                }
-                if (backgroundImage != null)
-                {
-                    Utility.Dispose(backgroundImage);
-                }
-                if (shadowImage != null)
-                {
-                    Utility.Dispose(shadowImage);
-                }
-            }
-
-            base.Dispose(type);
-        }
-        /// <summary>
         /// Called after a key event is received by the view that has had its focus set.
         /// </summary>
         /// <param name="key">The key event.</param>
@@ -834,29 +645,41 @@ namespace Tizen.NUI.Components
         /// <since_tizen> 6 </since_tizen>
         public override bool OnKey(Key key)
         {
+            if (!IsEnabled || null == key)
+            {
+                return false;
+            }
+
             if (key.State == Key.StateType.Down)
             {
                 if (key.KeyPressedName == "Return")
                 {
                     isPressed = true;
                     UpdateState();
-                    if(isEnabled)
-                    {
-                        ClickEventArgs eventArgs = new ClickEventArgs();
-                        OnClick(eventArgs);
-                    }
                 }
             }
             else if (key.State == Key.StateType.Up)
             {
                 if (key.KeyPressedName == "Return")
                 {
+                    bool clicked = isPressed && isEnabled;
+
                     isPressed = false;
-                    if (buttonAttributes.IsSelectable != null && buttonAttributes.IsSelectable == true)
+
+                    if (Style.IsSelectable != null && Style.IsSelectable == true)
                     {
-                        isSelected = !isSelected;
+                        IsSelected = !IsSelected;
+                    }
+                    else
+                    {
+                        UpdateState();
+                    }
+
+                    if (clicked)
+                    {
+                        ClickEventArgs eventArgs = new ClickEventArgs();
+                        OnClickInternal(eventArgs);
                     }
-                    UpdateState();
                 }
             }
             return base.OnKey(key);
@@ -865,20 +688,17 @@ namespace Tizen.NUI.Components
         /// <summary>
         /// Called when the control gain key input focus. Should be overridden by derived classes if they need to customize what happens when the focus is gained.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen> 8 </since_tizen>
         public override void OnFocusGained()
         {
             base.OnFocusGained();
             UpdateState();
         }
+
         /// <summary>
         /// Called when the control loses key input focus. Should be overridden by derived classes if they need to customize what happens when the focus is lost.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen> 8 </since_tizen>
         public override void OnFocusLost()
         {
             base.OnFocusLost();
@@ -886,39 +706,26 @@ namespace Tizen.NUI.Components
         }
 
         /// <summary>
-        /// Tap gesture event callback.
-        /// </summary>
-        /// <param name="source">Source which recieved touch event.</param>
-        /// <param name="e">Tap gesture event argument.</param>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        protected override void OnTapGestureDetected(object source, TapGestureDetector.DetectedEventArgs e)
-        {
-            if (isEnabled)
-            {
-                ClickEventArgs eventArgs = new ClickEventArgs();
-                OnClick(eventArgs);
-                base.OnTapGestureDetected(source, e);
-            }
-        }
-        /// <summary>
         /// Called after a touch event is received by the owning view.<br />
         /// CustomViewBehaviour.REQUIRES_TOUCH_EVENTS must be enabled during construction. See CustomView(ViewWrapperImpl.CustomViewBehaviour behaviour).<br />
         /// </summary>
         /// <param name="touch">The touch event.</param>
         /// <returns>True if the event should be consumed.</returns>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen> 8 </since_tizen>
         public override bool OnTouch(Touch touch)
         {
+            if (!IsEnabled || null == touch)
+            {
+                return false;
+            }
+
             PointStateType state = touch.GetState(0);
-      
-            switch(state)
+
+            switch (state)
             {
                 case PointStateType.Down:
                     isPressed = true;
+                    Extension?.SetTouchInfo(touch);
                     UpdateState();
                     return true;
                 case PointStateType.Interrupted:
@@ -926,422 +733,131 @@ namespace Tizen.NUI.Components
                     UpdateState();
                     return true;
                 case PointStateType.Up:
-                    isPressed = false;
-                    if (buttonAttributes.IsSelectable != null && buttonAttributes.IsSelectable == true)
                     {
-                        isSelected = !isSelected;
+                        bool clicked = isPressed && isEnabled;
+
+                        isPressed = false;
+
+                        if (Style.IsSelectable != null && Style.IsSelectable == true)
+                        {
+                            Extension?.SetTouchInfo(touch);
+                            IsSelected = !IsSelected;
+                        }
+                        else
+                        {
+                            Extension?.SetTouchInfo(touch);
+                            UpdateState();
+                        }
+
+                        if (clicked)
+                        {
+                            ClickEventArgs eventArgs = new ClickEventArgs();
+                            OnClickInternal(eventArgs);
+                        }
+
+                        return true;
                     }
-                    UpdateState();
-                    return true;
                 default:
                     break;
             }
             return base.OnTouch(touch);
         }
+
         /// <summary>
-        /// Get Button attribues.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        protected override Attributes GetAttributes()
-        {
-            return new ButtonAttributes();
-        }
-        /// <summary>
-        /// Update Button by attributes.
+        /// Apply style to button.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        protected override void OnUpdate()
+        /// <param name="viewStyle">The style to apply.</param>
+        /// <since_tizen> 8 </since_tizen>
+        public override void ApplyStyle(ViewStyle viewStyle)
         {
-            if (buttonAttributes.ShadowImageAttributes != null)
-            {
-                if(shadowImage == null)
-                {
-                    shadowImage = new ImageView()
-                    {
-                        WidthResizePolicy = ResizePolicyType.FillToParent,
-                        HeightResizePolicy = ResizePolicyType.FillToParent
-                    };
-                    this.Add(shadowImage);
-                }
-                ApplyAttributes(shadowImage, buttonAttributes.ShadowImageAttributes);
-            }
-
-            if (buttonAttributes.BackgroundImageAttributes != null)
-            {
-                if(backgroundImage == null)
-                {
-                    backgroundImage = new ImageView()
-                    {
-                        WidthResizePolicy = ResizePolicyType.FillToParent,
-                        HeightResizePolicy = ResizePolicyType.FillToParent
-                    };
-                    this.Add(backgroundImage);
-                }
-                ApplyAttributes(backgroundImage, buttonAttributes.BackgroundImageAttributes);
-            }
+            base.ApplyStyle(viewStyle);
 
-            if (buttonAttributes.OverlayImageAttributes != null)
+            ButtonStyle buttonStyle = viewStyle as ButtonStyle;
+            if (null != buttonStyle)
             {
-                if(overlayImage == null)
+                Extension = buttonStyle.CreateExtension();
+                if (buttonStyle.Overlay != null)
                 {
-                    overlayImage = new ImageView()
-                    {
-                        WidthResizePolicy = ResizePolicyType.FillToParent,
-                        HeightResizePolicy = ResizePolicyType.FillToParent
-                    };
-                    this.Add(overlayImage);
+                    OverlayImage?.ApplyStyle(buttonStyle.Overlay);
                 }
-                ApplyAttributes(overlayImage, buttonAttributes.OverlayImageAttributes);
-            }
 
-            if (buttonAttributes.TextAttributes != null)
-            {
-                if(buttonText == null)
+                if (buttonStyle.Text != null)
                 {
-                    buttonText = new TextLabel();
-                    this.Add(buttonText);
+                    TextLabel?.ApplyStyle(buttonStyle.Text);
                 }
-                ApplyAttributes(buttonText, buttonAttributes.TextAttributes);
-            }
 
-            if (buttonAttributes.IconAttributes != null)
-            {
-                if(buttonIcon == null)
+                if (buttonStyle.Icon != null)
                 {
-                    buttonIcon = new ImageView();
-                    buttonIcon.Relayout += OnIconRelayout;
-                    this.Add(buttonIcon);
+                    Icon?.ApplyStyle(buttonStyle.Icon);
                 }
-                ApplyAttributes(buttonIcon, buttonAttributes.IconAttributes);
             }
-
-            MeasureText();
-            LayoutChild();
-
-            Sensitive = isEnabled ? true : false;
         }
 
         /// <summary>
-        /// Update Button State.
+        /// ClickEventArgs is a class to record button click event arguments which will sent to user.
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        protected void UpdateState()
+        public class ClickEventArgs : EventArgs
         {
-            ControlStates sourceState = State;
-            ControlStates targetState;
-
-            if(isEnabled)
-            {
-                targetState = isPressed ? ControlStates.Pressed : (IsFocused ? (IsSelected ? ControlStates.SelectedFocused : ControlStates.Focused) : (IsSelected ? ControlStates.Selected : ControlStates.Normal));
-            }
-            else
-            {
-                targetState = IsSelected ? ControlStates.DisabledSelected : (IsFocused ? ControlStates.DisabledFocused : ControlStates.Disabled);
-            }
-            if(sourceState != targetState)
-            {
-                State = targetState;
-
-                OnUpdate();
-
-                StateChangedEventArgs e = new StateChangedEventArgs
-                {
-                    PreviousState = sourceState,
-                    CurrentState = targetState
-                };
-                stateChangeHander?.Invoke(this, e);
-            }
         }
+
         /// <summary>
-        /// It is hijack by using protected, attributes copy problem when class inherited from Button.
+        /// StateChangeEventArgs is a class to record button state change event arguments which will sent to user.
         /// </summary>
         /// <since_tizen> 6 </since_tizen>
-        private void Initialize()
+        [Obsolete("Deprecated in API8; Will be removed in API10. Please use View.ControlStateChangedEventArgs")]
+        public class StateChangedEventArgs : EventArgs
         {
-            buttonAttributes = attributes as ButtonAttributes;
-            if (buttonAttributes == null)
-            {
-                throw new Exception("Button attribute parse error.");
-            }
-
-            ApplyAttributes(this, buttonAttributes);
-            LayoutDirectionChanged += OnLayoutDirectionChanged;
+            /// <summary> previous state of Button </summary>
+            /// <since_tizen> 6 </since_tizen>
+            [Obsolete("Deprecated in API8; Will be removed in API10")]
+            public ControlStates PreviousState;
+            /// <summary> current state of Button </summary>
+            /// <since_tizen> 6 </since_tizen>
+            [Obsolete("Deprecated in API8; Will be removed in API10")]
+            public ControlStates CurrentState;
         }
 
         /// <summary>
-        /// Measure text, it can be override.
+        /// Get current text part to the attached ButtonExtension.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
+        /// <remarks>
+        /// It returns null if the passed extension is invalid.
+        /// </remarks>
+        /// <param name="extension">The extension instance that is currently attached to this Button.</param>
+        /// <return>The button's text part.</return>
         [EditorBrowsable(EditorBrowsableState.Never)]
-        protected virtual void MeasureText()
+        public TextLabel GetCurrentText(ButtonExtension extension)
         {
-            if (buttonAttributes.IconRelativeOrientation == null || buttonIcon == null || buttonText == null)
-            {
-                return;
-            }
-            buttonText.WidthResizePolicy = ResizePolicyType.Fixed;
-            buttonText.HeightResizePolicy = ResizePolicyType.Fixed;
-            int textPaddingLeft = buttonAttributes.TextAttributes.PaddingLeft;
-            int textPaddingRight = buttonAttributes.TextAttributes.PaddingRight;
-            int textPaddingTop = buttonAttributes.TextAttributes.PaddingTop;
-            int textPaddingBottom = buttonAttributes.TextAttributes.PaddingBottom;
-
-            int iconPaddingLeft = buttonAttributes.IconAttributes.PaddingLeft;
-            int iconPaddingRight = buttonAttributes.IconAttributes.PaddingRight;
-            int iconPaddingTop = buttonAttributes.IconAttributes.PaddingTop;
-            int iconPaddingBottom = buttonAttributes.IconAttributes.PaddingBottom;
-
-            if (IconRelativeOrientation == IconOrientation.Top || IconRelativeOrientation == IconOrientation.Bottom)
-            {
-                buttonText.SizeWidth = SizeWidth - textPaddingLeft - textPaddingRight;
-                buttonText.SizeHeight = SizeHeight - textPaddingTop - textPaddingBottom - iconPaddingTop - iconPaddingBottom - buttonIcon.SizeHeight;
-            }
-            else
-            {
-                buttonText.SizeWidth = SizeWidth - textPaddingLeft - textPaddingRight - iconPaddingLeft - iconPaddingRight - buttonIcon.SizeWidth;
-                buttonText.SizeHeight = SizeHeight - textPaddingTop - textPaddingBottom;
-            }
+            return (extension == Extension) ? TextLabel : null;
         }
-        /// <summary>
-        /// Layout child, it can be override.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
-        [EditorBrowsable(EditorBrowsableState.Never)]
-        protected virtual void LayoutChild()
-        {
-            if (buttonAttributes.IconRelativeOrientation == null || buttonIcon == null || buttonText == null)
-            {
-                return;
-            }
-
-            int textPaddingLeft = buttonAttributes.TextAttributes.PaddingLeft;
-            int textPaddingRight = buttonAttributes.TextAttributes.PaddingRight;
-            int textPaddingTop = buttonAttributes.TextAttributes.PaddingTop;
-            int textPaddingBottom = buttonAttributes.TextAttributes.PaddingBottom;
-
-            int iconPaddingLeft = buttonAttributes.IconAttributes.PaddingLeft;
-            int iconPaddingRight = buttonAttributes.IconAttributes.PaddingRight;
-            int iconPaddingTop = buttonAttributes.IconAttributes.PaddingTop;
-            int iconPaddingBottom = buttonAttributes.IconAttributes.PaddingBottom;
-
-            switch (IconRelativeOrientation)
-            {
-                case IconOrientation.Top:
-                    buttonIcon.PositionUsesPivotPoint = true;
-                    buttonIcon.ParentOrigin = NUI.ParentOrigin.TopCenter;
-                    buttonIcon.PivotPoint = NUI.PivotPoint.TopCenter;
-                    buttonIcon.Position2D = new Position2D(0, iconPaddingTop);
-
-                    buttonText.PositionUsesPivotPoint = true;
-                    buttonText.ParentOrigin = NUI.ParentOrigin.BottomCenter;
-                    buttonText.PivotPoint = NUI.PivotPoint.BottomCenter;
-                    buttonText.Position2D = new Position2D(0, -textPaddingBottom);
-                    break;
-                case IconOrientation.Bottom:
-                    buttonIcon.PositionUsesPivotPoint = true;
-                    buttonIcon.ParentOrigin = NUI.ParentOrigin.BottomCenter;
-                    buttonIcon.PivotPoint = NUI.PivotPoint.BottomCenter;
-                    buttonIcon.Position2D = new Position2D(0, -iconPaddingBottom);
-
-                    buttonText.PositionUsesPivotPoint = true;
-                    buttonText.ParentOrigin = NUI.ParentOrigin.TopCenter;
-                    buttonText.PivotPoint = NUI.PivotPoint.TopCenter;
-                    buttonText.Position2D = new Position2D(0, textPaddingTop);
-                    break;
-                case IconOrientation.Left:
-                    if (LayoutDirection == ViewLayoutDirectionType.LTR)
-                    {
-                        buttonIcon.PositionUsesPivotPoint = true;
-                        buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterLeft;
-                        buttonIcon.PivotPoint = NUI.PivotPoint.CenterLeft;
-                        buttonIcon.Position2D = new Position2D(iconPaddingLeft, 0);
-
-                        buttonText.PositionUsesPivotPoint = true;
-                        buttonText.ParentOrigin = NUI.ParentOrigin.CenterRight;
-                        buttonText.PivotPoint = NUI.PivotPoint.CenterRight;
-                        buttonText.Position2D = new Position2D(-textPaddingRight, 0);
-                    }
-                    else
-                    {
-                        buttonIcon.PositionUsesPivotPoint = true;
-                        buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterRight;
-                        buttonIcon.PivotPoint = NUI.PivotPoint.CenterRight;
-                        buttonIcon.Position2D = new Position2D(-iconPaddingLeft, 0);
-
-                        buttonText.PositionUsesPivotPoint = true;
-                        buttonText.ParentOrigin = NUI.ParentOrigin.CenterLeft;
-                        buttonText.PivotPoint = NUI.PivotPoint.CenterLeft;
-                        buttonText.Position2D = new Position2D(textPaddingRight, 0);
-                    }
-
-                    break;
-                case IconOrientation.Right:
-                    if (LayoutDirection == ViewLayoutDirectionType.RTL)
-                    {
-                        buttonIcon.PositionUsesPivotPoint = true;
-                        buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterLeft;
-                        buttonIcon.PivotPoint = NUI.PivotPoint.CenterLeft;
-                        buttonIcon.Position2D = new Position2D(iconPaddingRight, 0);
 
-                        buttonText.PositionUsesPivotPoint = true;
-                        buttonText.ParentOrigin = NUI.ParentOrigin.CenterRight;
-                        buttonText.PivotPoint = NUI.PivotPoint.CenterRight;
-                        buttonText.Position2D = new Position2D(-textPaddingLeft, 0);
-                    }
-                    else
-                    {
-                        buttonIcon.PositionUsesPivotPoint = true;
-                        buttonIcon.ParentOrigin = NUI.ParentOrigin.CenterRight;
-                        buttonIcon.PivotPoint = NUI.PivotPoint.CenterRight;
-                        buttonIcon.Position2D = new Position2D(-iconPaddingRight, 0);
-
-                        buttonText.PositionUsesPivotPoint = true;
-                        buttonText.ParentOrigin = NUI.ParentOrigin.CenterLeft;
-                        buttonText.PivotPoint = NUI.PivotPoint.CenterLeft;
-                        buttonText.Position2D = new Position2D(textPaddingLeft, 0);
-                    }
-                    break;
-                default:
-                    break;
-            }
-        }
         /// <summary>
-        /// Theme change callback when theme is changed, this callback will be trigger.
+        /// Get current icon part to the attached ButtonExtension.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        /// This will be public opened in tizen_5.5 after ACR done. Before ACR, need to be hidden as inhouse API.
+        /// <remarks>
+        /// It returns null if the passed extension is invalid.
+        /// </remarks>
+        /// <param name="extension">The extension instance that is currently attached to this Button.</param>
+        /// <return>The button's icon part.</return>
         [EditorBrowsable(EditorBrowsableState.Never)]
-        protected override void OnThemeChangedEvent(object sender, StyleManager.ThemeChangeEventArgs e)
-        {
-            ButtonAttributes tempAttributes = StyleManager.Instance.GetAttributes(style) as ButtonAttributes;
-            if(tempAttributes != null)
-            {
-                attributes = buttonAttributes = tempAttributes;
-                RelayoutRequest();
-            }
-        }
-
-        private void OnLayoutDirectionChanged(object sender, LayoutDirectionChangedEventArgs e)
-        {
-            MeasureText();
-            LayoutChild();
-        }
-
-        private void OnClick(ClickEventArgs eventArgs)
-        {
-            ClickEvent?.Invoke(this, eventArgs);
-        }
-
-        private void OnIconRelayout(object sender, EventArgs e)
-        {
-            MeasureText();
-            LayoutChild();
-        }
-
-        private void CreateBackgroundAttributes()
-        {
-            if (buttonAttributes.BackgroundImageAttributes == null)
-            {
-                buttonAttributes.BackgroundImageAttributes = new ImageAttributes()
-                {
-                    PositionUsesPivotPoint = true,
-                    ParentOrigin = Tizen.NUI.ParentOrigin.Center,
-                    PivotPoint = Tizen.NUI.PivotPoint.Center,
-                    WidthResizePolicy = ResizePolicyType.FillToParent,
-                    HeightResizePolicy = ResizePolicyType.FillToParent
-                };
-            }
-        }
-
-        private void CreateShadowAttributes()
-        {
-            if (buttonAttributes.ShadowImageAttributes == null)
-            {
-                buttonAttributes.ShadowImageAttributes = new ImageAttributes()
-                {
-                    PositionUsesPivotPoint = true,
-                    ParentOrigin = Tizen.NUI.ParentOrigin.Center,
-                    PivotPoint = Tizen.NUI.PivotPoint.Center,
-                    WidthResizePolicy = ResizePolicyType.FillToParent,
-                    HeightResizePolicy = ResizePolicyType.FillToParent
-                };
-            }
-        }
-
-        private void CreateOverlayAttributes()
-        {
-            if (buttonAttributes.OverlayImageAttributes == null)
-            {
-                buttonAttributes.OverlayImageAttributes = new ImageAttributes()
-                {
-                    PositionUsesPivotPoint = true,
-                    ParentOrigin = Tizen.NUI.ParentOrigin.Center,
-                    PivotPoint = Tizen.NUI.PivotPoint.Center,
-                    WidthResizePolicy = ResizePolicyType.FillToParent,
-                    HeightResizePolicy = ResizePolicyType.FillToParent
-                };
-            }
-        }
-
-        private void CreateTextAttributes()
+        public ImageView GetCurrentIcon(ButtonExtension extension)
         {
-            if (buttonAttributes.TextAttributes == null)
-            {
-                buttonAttributes.TextAttributes = new TextAttributes()
-                {
-                    PositionUsesPivotPoint = true,
-                    ParentOrigin = Tizen.NUI.ParentOrigin.Center,
-                    PivotPoint = Tizen.NUI.PivotPoint.Center,
-                    WidthResizePolicy = ResizePolicyType.FillToParent,
-                    HeightResizePolicy = ResizePolicyType.FillToParent,
-                    HorizontalAlignment = HorizontalAlignment.Center,
-                    VerticalAlignment = VerticalAlignment.Center
-                };
-            }
+            return (extension == Extension) ? Icon : null;
         }
 
-        private void CreateIconAttributes()
-        {
-            if (buttonAttributes.IconAttributes == null)
-            {
-                buttonAttributes.IconAttributes = new ImageAttributes()
-                {
-                    PositionUsesPivotPoint = true,
-                    ParentOrigin = Tizen.NUI.ParentOrigin.Center,
-                    PivotPoint = Tizen.NUI.PivotPoint.Center,
-                    WidthResizePolicy = ResizePolicyType.UseNaturalSize,
-                    HeightResizePolicy = ResizePolicyType.UseNaturalSize,
-                };
-            }
-        }
-        /// <summary>
-        /// ClickEventArgs is a class to record button click event arguments which will sent to user.
-        /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        public class ClickEventArgs : EventArgs
-        {
-        }
         /// <summary>
-        /// StateChangeEventArgs is a class to record button state change event arguments which will sent to user.
+        /// Get current overlay image part to the attached ButtonExtension.
         /// </summary>
-        /// <since_tizen> 6 </since_tizen>
-        public class StateChangedEventArgs : EventArgs
+        /// <remarks>
+        /// It returns null if the passed extension is invalid.
+        /// </remarks>
+        /// <param name="extension">The extension instance that is currently attached to this Button.</param>
+        /// <return>The button's overlay image part.</return>
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public ImageView GetCurrentOverlayImage(ButtonExtension extension)
         {
-            /// <summary> previous state of Button </summary>
-            /// <since_tizen> 6 </since_tizen>
-            public ControlStates PreviousState;
-            /// <summary> current state of Button </summary>
-            /// <since_tizen> 6 </since_tizen>
-            public ControlStates CurrentState;
+            return (extension == Extension) ? OverlayImage : null;
         }
-
     }
 }