Added IsRippleDisabled and updated demo #328

Author: Helder Carvalho

MainDemo.Wpf/Buttons.xaml

@@ -174,6 +174,11 @@
                     Width="150"
                     ToolTip="Resource name: MaterialDesignRaisedAccentButton"
                     materialDesign:RippleAssist.Feedback="#DD000000">CUSTOM RIPPLE</Button>
+            <Button Style="{StaticResource MaterialDesignRaisedAccentButton}"
+                    Margin="0 0 8 0"
+                    Width="150"
+                    ToolTip="Resource name: MaterialDesignRaisedAccentButton"
+                    materialDesign:RippleAssist.IsDisabled="True">NO RIPPLE</Button>
             <RepeatButton Margin="0 0 8 0" Width="100"
                           ToolTip="Resource name: MaterialDesignRaisedButton">
                 REPEAT

MaterialDesignThemes.Wpf/Ripple.cs

@@ -118,9 +118,12 @@ protected override void OnPreviewMouseLeftButtonDown(MouseButtonEventArgs e)
                 RippleY = point.Y - RippleSize / 2;
             }
 
-            VisualStateManager.GoToState(this, TemplateStateNormal, false);
-            VisualStateManager.GoToState(this, TemplateStateMousePressed, true);
-            PressedInstances.Add(this);            
+            if (!RippleAssist.GetIsDisabled(this))
+            {
+                VisualStateManager.GoToState(this, TemplateStateNormal, false);
+                VisualStateManager.GoToState(this, TemplateStateMousePressed, true);
+                PressedInstances.Add(this);
+            }
 
             base.OnPreviewMouseLeftButtonDown(e);
         }

MaterialDesignThemes.Wpf/RippleAssist.cs

@@ -54,6 +54,35 @@ public static bool GetIsCentered(DependencyObject element)
 
         #endregion
 
+        #region disable 
+
+        /// <summary>
+        /// Set to <c>True</c> to disable ripple effect
+        /// </summary>
+        public static readonly DependencyProperty IsDisabledProperty = DependencyProperty.RegisterAttached(
+            "IsDisabled", typeof(bool), typeof(RippleAssist), new FrameworkPropertyMetadata(false, FrameworkPropertyMetadataOptions.Inherits));
+
+        /// <summary>
+        /// Set to <c>True</c> to disable ripple effect
+        /// </summary>
+        /// <param name="element"></param>
+        /// <param name="value"></param>
+        public static void SetIsDisabled(DependencyObject element, bool value)
+        {
+            element.SetValue(IsDisabledProperty, value);
+        }
+
+        /// <summary>
+        /// Set to <c>True</c> to disable ripple effect
+        /// </summary>
+        /// <param name="element"></param>        
+        public static bool GetIsDisabled(DependencyObject element)
+        {
+            return (bool)element.GetValue(IsDisabledProperty);
+        }
+
+        #endregion
+
         #region RippleSizeMultiplier
 
         public static readonly DependencyProperty RippleSizeMultiplierProperty = DependencyProperty.RegisterAttached(