Added Animation Length slider

Added a slider in Appearance to adjust the length of the open animation for the launcher. By default the animation should be the same as it was previously (the first part of the animation is about 10ms shorter so that the ratio is simpler - 2/3 instead of 25/36)
Currently only has language support for English and the length is adjustable from 100ms to 2000ms in steps of 10.

Author: AlexDavies8

Flow.Launcher.Infrastructure/UserSettings/Settings.cs

@@ -53,6 +53,7 @@ public string Theme
         public string ResultFontStretch { get; set; }
         public bool UseGlyphIcons { get; set; } = true;
         public bool UseAnimation { get; set; } = true;
+        public int AnimationLength { get; set; } = 360;
         public bool UseSound { get; set; } = true;
         public bool UseClock { get; set; } = true;
         public bool UseDate { get; set; } = false;

Flow.Launcher/Languages/en.xaml

@@ -157,6 +157,8 @@
     <system:String x:Key="SoundEffectTip">Play a small sound when the search window opens</system:String>
     <system:String x:Key="Animation">Animation</system:String>
     <system:String x:Key="AnimationTip">Use Animation in UI</system:String>
+    <system:String x:Key="animationLength">Animation Length (ms)</system:String>
+    <system:String x:Key="animationLengthToolTip">The length of the UI animation in milliseconds</system:String>
     <system:String x:Key="Clock">Clock</system:String>
     <system:String x:Key="Date">Date</system:String>
 

Flow.Launcher/MainWindow.xaml.cs

@@ -383,23 +383,23 @@ public void WindowAnimator()
             {
                 From = 0,
                 To = 1,
-                Duration = TimeSpan.FromSeconds(0.25),
+                Duration = TimeSpan.FromMilliseconds(_settings.AnimationLength * 2 / 3),
                 FillBehavior = FillBehavior.Stop
             };
 
             var WindowMotion = new DoubleAnimation
             {
                 From = Top + 10,
                 To = Top,
-                Duration = TimeSpan.FromSeconds(0.25),
+                Duration = TimeSpan.FromMilliseconds(_settings.AnimationLength * 2 / 3),
                 FillBehavior = FillBehavior.Stop
             };
             var IconMotion = new DoubleAnimation
             {
                 From = 12,
                 To = 0,
                 EasingFunction = easing,
-                Duration = TimeSpan.FromSeconds(0.36),
+                Duration = TimeSpan.FromMilliseconds(_settings.AnimationLength),
                 FillBehavior = FillBehavior.Stop
             };
 
@@ -408,7 +408,7 @@ public void WindowAnimator()
                 From = 0,
                 To = 1,
                 EasingFunction = easing,
-                Duration = TimeSpan.FromSeconds(0.36),
+                Duration = TimeSpan.FromMilliseconds(_settings.AnimationLength),
                 FillBehavior = FillBehavior.Stop
             };
             double TargetIconOpacity = SearchIcon.Opacity; // Animation Target Opacity from Style
@@ -417,7 +417,7 @@ public void WindowAnimator()
                 From = 0,
                 To = TargetIconOpacity,
                 EasingFunction = easing,
-                Duration = TimeSpan.FromSeconds(0.36),
+                Duration = TimeSpan.FromMilliseconds(_settings.AnimationLength),
                 FillBehavior = FillBehavior.Stop
             };
 
@@ -427,7 +427,7 @@ public void WindowAnimator()
                 From = new Thickness(0, 12, right, 0),
                 To = new Thickness(0, 0, right, 0),
                 EasingFunction = easing,
-                Duration = TimeSpan.FromSeconds(0.36),
+                Duration = TimeSpan.FromMilliseconds(_settings.AnimationLength),
                 FillBehavior = FillBehavior.Stop
             };
 

Flow.Launcher/SettingWindow.xaml

@@ -2414,6 +2414,40 @@
                                                         </TextBlock>
                                                     </ItemsControl>
                                                 </Border>
+                                                <Border
+                                                    Margin="0"
+                                                    BorderThickness="0"
+                                                    Style="{DynamicResource SettingGroupBox}">
+                                                    <ItemsControl Style="{StaticResource SettingGrid}">
+                                                        <StackPanel Style="{StaticResource TextPanel}">
+                                                            <TextBlock Style="{DynamicResource SettingTitleLabel}" Text="{DynamicResource animationLength}" />
+                                                            <TextBlock Style="{DynamicResource SettingSubTitleLabel}" Text="{DynamicResource animationLengthToolTip}" />
+                                                        </StackPanel>
+                                                        <StackPanel Grid.Column="2" Orientation="Horizontal">
+                                                            <TextBlock
+                                                                Width="Auto"
+                                                                Margin="0,0,8,2"
+                                                                VerticalAlignment="Center"
+                                                                Foreground="{DynamicResource Color05B}"
+                                                                Text="{Binding ElementName=AnimationLengthValue, Path=Value, UpdateSourceTrigger=PropertyChanged}"
+                                                                TextAlignment="Right" />
+                                                            <Slider
+                                                                Name="AnimationLengthValue"
+                                                                Width="250"
+                                                                Margin="0,0,18,0"
+                                                                VerticalAlignment="Center"
+                                                                IsMoveToPointEnabled="True"
+                                                                IsSnapToTickEnabled="True"
+                                                                Maximum="2000"
+                                                                Minimum="100"
+                                                                TickFrequency="10"
+                                                                Value="{Binding AnimationLength, Mode=TwoWay}" />
+                                                        </StackPanel>
+                                                        <TextBlock Style="{StaticResource Glyph}">
+                                                            &#xe916;
+                                                        </TextBlock>
+                                                    </ItemsControl>
+                                                </Border>
                                                 <Separator
                                                     Width="Auto"
                                                     BorderThickness="1"

Flow.Launcher/ViewModel/SettingWindowViewModel.cs

@@ -598,6 +598,12 @@ public bool UseAnimation
             set => Settings.UseAnimation = value;
         }
 
+        public int AnimationLength
+        {
+            get => Settings.AnimationLength;
+            set => Settings.AnimationLength = value;
+        }
+
         public bool UseSound
         {
             get => Settings.UseSound;