From 556cc32755723a92fa4e987e26c2d280c849a86c Mon Sep 17 00:00:00 2001
From: Yang CAO <ycao@synergiz.com>
Date: Wed, 25 Mar 2015 16:09:50 +0100
Subject: [PATCH 1/3] create new class of Thumb in order to be better in Touch
 environment

---
 MahApps.Metro/Controls/MetroTouchThumb.cs | 53 +++++++++++++++++++++++
 MahApps.Metro/MahApps.Metro.csproj        |  1 +
 MahApps.Metro/Styles/Controls.Slider.xaml | 23 +++++-----
 3 files changed, 66 insertions(+), 11 deletions(-)
 create mode 100644 MahApps.Metro/Controls/MetroTouchThumb.cs

diff --git a/MahApps.Metro/Controls/MetroTouchThumb.cs b/MahApps.Metro/Controls/MetroTouchThumb.cs
new file mode 100644
index 0000000000..a01bc4f6a7
--- /dev/null
+++ b/MahApps.Metro/Controls/MetroTouchThumb.cs
@@ -0,0 +1,53 @@
+using System.Windows.Controls.Primitives;
+using System.Windows.Input;
+
+namespace MahApps.Metro.Controls
+{
+    public class MetroTouchThumb : Thumb
+    {
+        private TouchDevice _currentDevice = null;
+
+        protected override void OnPreviewTouchDown(TouchEventArgs e)
+        {
+            // Release any previous capture
+            ReleaseCurrentDevice();
+            // Capture the new touch
+            CaptureCurrentDevice(e);
+        }
+
+        protected override void OnPreviewTouchUp(TouchEventArgs e)
+        {
+            ReleaseCurrentDevice();
+        }
+
+        protected override void OnLostTouchCapture(TouchEventArgs e)
+        {
+            // Only re-capture if the reference is not null
+            // This way we avoid re-capturing after calling ReleaseCurrentDevice()
+            if (_currentDevice != null)
+            {
+                CaptureCurrentDevice(e);
+            }
+        }
+
+        private void ReleaseCurrentDevice()
+        {
+            if (_currentDevice != null)
+            {
+                // Set the reference to null so that we don't re-capture in the OnLostTouchCapture() method
+                var temp = _currentDevice;
+                _currentDevice = null;
+                ReleaseTouchCapture(temp);
+            }
+        }
+
+        private void CaptureCurrentDevice(TouchEventArgs e)
+        {
+            bool gotTouch = CaptureTouch(e.TouchDevice);
+            if (gotTouch)
+            {
+                _currentDevice = e.TouchDevice;
+            }
+        }
+    }
+}
diff --git a/MahApps.Metro/MahApps.Metro.csproj b/MahApps.Metro/MahApps.Metro.csproj
index 406d81223e..06e9091101 100644
--- a/MahApps.Metro/MahApps.Metro.csproj
+++ b/MahApps.Metro/MahApps.Metro.csproj
@@ -127,6 +127,7 @@
     <Compile Include="Controls\MetroProgressBar.cs" />
     <Compile Include="Controls\MetroTabControl.cs" />
     <Compile Include="Controls\MetroTabItem.cs" />
+    <Compile Include="Controls\MetroTouchThumb.cs" />
     <Compile Include="Controls\MetroWindowHelpers.cs" />
     <Compile Include="Controls\MultiFrameImage.cs" />
     <Compile Include="Controls\NumericUpDown.cs" />
diff --git a/MahApps.Metro/Styles/Controls.Slider.xaml b/MahApps.Metro/Styles/Controls.Slider.xaml
index d14f8d0585..e4c808edd9 100644
--- a/MahApps.Metro/Styles/Controls.Slider.xaml
+++ b/MahApps.Metro/Styles/Controls.Slider.xaml
@@ -1,6 +1,7 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-                    xmlns:System="clr-namespace:System;assembly=mscorlib">
+                    xmlns:System="clr-namespace:System;assembly=mscorlib"
+                    xmlns:controls="clr-namespace:MahApps.Metro.Controls">
 
     <System:Double x:Key="HorizontalThumbHeight">16</System:Double>
     <System:Double x:Key="HorizontalThumbWidth">10</System:Double>
@@ -185,11 +186,11 @@
                                       Style="{StaticResource HorizontalTrackLargeDecrease}" />
                     </Track.IncreaseRepeatButton>
                     <Track.Thumb>
-                        <Thumb x:Name="HorizontalThumb"
-                               Height="{DynamicResource HorizontalThumbHeight}"
-                               IsTabStop="True"
-                               Width="{DynamicResource HorizontalThumbWidth}"
-                               Style="{StaticResource HorizontalSliderThumb}" />
+                        <controls:MetroTouchThumb x:Name="HorizontalThumb"
+                                                  Height="{DynamicResource HorizontalThumbHeight}"
+                                                  IsTabStop="True"
+                                                  Width="{DynamicResource HorizontalThumbWidth}"
+                                                  Style="{StaticResource HorizontalSliderThumb}" />
                     </Track.Thumb>
                 </Track>
             </Grid>
@@ -396,11 +397,11 @@
                                       Style="{StaticResource VerticalTrackLargeDecrease}" />
                     </Track.IncreaseRepeatButton>
                     <Track.Thumb>
-                        <Thumb x:Name="VerticalThumb"
-                               Width="{DynamicResource VerticalThumbWidth}"
-                               IsTabStop="True"
-                               Height="{DynamicResource VerticalThumbHeight}"
-                               Style="{StaticResource VerticalSliderThumb}" />
+                        <controls:MetroTouchThumb x:Name="VerticalThumb"
+                                                  Width="{DynamicResource VerticalThumbWidth}"
+                                                  IsTabStop="True"
+                                                  Height="{DynamicResource VerticalThumbHeight}"
+                                                  Style="{StaticResource VerticalSliderThumb}" />
                     </Track.Thumb>
                 </Track>
             </Grid>

From c5a5e9c083d5f9ff718b26f8cd4710139348be55 Mon Sep 17 00:00:00 2001
From: ycaoyang <yang.cao@me.com>
Date: Mon, 29 Jun 2015 18:15:02 +0200
Subject: [PATCH 2/3] Update MahApps.Metro.NET45.csproj

---
 MahApps.Metro/MahApps.Metro.NET45.csproj | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/MahApps.Metro/MahApps.Metro.NET45.csproj b/MahApps.Metro/MahApps.Metro.NET45.csproj
index ed1ff51213..afed78661a 100644
--- a/MahApps.Metro/MahApps.Metro.NET45.csproj
+++ b/MahApps.Metro/MahApps.Metro.NET45.csproj
@@ -162,6 +162,7 @@
     <Compile Include="Controls\MetroProgressBar.cs" />
     <Compile Include="Controls\MetroTabControl.cs" />
     <Compile Include="Controls\MetroTabItem.cs" />
+    <Compile Include="Controls\MetroTouchThumb.cs" />
     <Compile Include="Controls\MetroWindowHelpers.cs" />
     <Compile Include="Controls\MultiFrameImage.cs" />
     <Compile Include="Controls\NumericUpDown.cs" />
@@ -721,4 +722,4 @@
   </Target>
   -->
   <Target Name="AfterCompile" />
-</Project>
\ No newline at end of file
+</Project>

From 8644843c6c24dbc2009793aa20066fc15e9dedce Mon Sep 17 00:00:00 2001
From: ycaoyang <yang.cao@me.com>
Date: Mon, 29 Jun 2015 18:20:38 +0200
Subject: [PATCH 3/3] Update MahApps.Metro.NET45.csproj