refactor: convert searchbox into usercontrol

Author: unitycoder

UnityLauncherPro/Controls/SearchBoxControl.xaml

@@ -0,0 +1,45 @@
+<UserControl
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:UnityLauncherPro"
+        mc:Ignorable="d" x:Class="UnityLauncherPro.Controls.SearchBoxControl"
+        Height="20" Width="222" Background="{DynamicResource ThemeTextBoxBackground}">
+    <Grid>
+        <!-- Placeholder text -->
+        <TextBlock Margin="3,2" MinWidth="100" Text="Search" Foreground="{DynamicResource ThemeSearchPlaceholder}" Height="24">
+            <TextBlock.Style>
+                <Style TargetType="TextBlock">
+                    <Setter Property="Visibility" Value="Collapsed" />
+                    <Style.Triggers>
+                        <DataTrigger Binding="{Binding Text, ElementName=txtSearchBox}" Value="">
+                            <Setter Property="Visibility" Value="Visible" />
+                        </DataTrigger>
+                    </Style.Triggers>
+                </Style>
+            </TextBlock.Style>
+        </TextBlock>
+
+        <!-- Search TextBox -->
+        <TextBox MinWidth="100" CaretBrush="{DynamicResource ThemeSearchCaret}" x:Name="txtSearchBox" Background="Transparent" BorderBrush="{x:Null}" Foreground="{DynamicResource ThemeSearchForeground}" SelectionBrush="{DynamicResource ThemeSearchSelection}" BorderThickness="0" Margin="2,2,0,0" UndoLimit="64" PreviewKeyDown="TxtSearchBox_PreviewKeyDown" TextChanged="TxtSearchBox_TextChanged" />
+
+        <!-- Clear button -->
+        <Button x:Name="btnClearSearch" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" BorderThickness="0" HorizontalAlignment="Right" VerticalAlignment="Top" Height="23" Width="23" Background="Transparent" Padding="0,2" BorderBrush="{x:Null}" Click="OnClearSearchClick" IsTabStop="False">
+            <TextBlock Text="❌" FontSize="8" Foreground="{DynamicResource ThemeSearchClose}" Padding="5,3,4,4" HorizontalAlignment="Center">
+                <TextBlock.Style>
+                    <Style TargetType="{x:Type TextBlock}">
+                        <Style.Triggers>
+                            <DataTrigger Binding="{Binding Text, ElementName=txtSearchBox}" Value="">
+                                <Setter Property="Visibility" Value="Hidden"/>
+                            </DataTrigger>
+                            <DataTrigger Binding="{Binding Text, ElementName=txtSearchBox}" Value="{x:Null}">
+                                <Setter Property="Visibility" Value="Hidden"/>
+                            </DataTrigger>
+                        </Style.Triggers>
+                    </Style>
+                </TextBlock.Style>
+            </TextBlock>
+        </Button>
+    </Grid>
+</UserControl>

UnityLauncherPro/Controls/SearchBoxControl.xaml.cs

@@ -0,0 +1,52 @@
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+
+namespace UnityLauncherPro.Controls
+{
+    public partial class SearchBoxControl : UserControl
+    {
+        public event TextChangedEventHandler SearchTextChanged;
+        public event RoutedEventHandler SearchCleared;
+
+        public event KeyEventHandler SearchKeyDown;
+
+        public SearchBoxControl()
+        {
+            InitializeComponent();
+        }
+
+        public string SearchText
+        {
+            get { return txtSearchBox.Text; }
+            set { txtSearchBox.Text = value; }
+        }
+
+        public new void Focus()
+        {
+            txtSearchBox.Focus();
+            txtSearchBox.Select(txtSearchBox.Text.Length, 0);
+        }
+
+        public void Clear()
+        {
+            txtSearchBox.Text = "";
+        }
+
+        private void TxtSearchBox_PreviewKeyDown(object sender, KeyEventArgs e)
+        {
+            SearchKeyDown?.Invoke(this, e);
+        }
+
+        private void TxtSearchBox_TextChanged(object sender, TextChangedEventArgs e)
+        {
+            SearchTextChanged?.Invoke(this, e);
+        }
+
+        private void OnClearSearchClick(object sender, RoutedEventArgs e)
+        {
+            Clear();
+            SearchCleared?.Invoke(this, e);
+        }
+    }
+}