Merge pull request #1380 from Sparrkle/QueryTextboxNotify

Fixed QueryTextbox Binding event

Author: taooceros

Flow.Launcher/MainWindow.xaml

@@ -174,6 +174,7 @@
                         PreviewDragOver="OnPreviewDragOver"
                         Style="{DynamicResource QueryBoxStyle}"
                         Text="{Binding QueryText, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                        PreviewKeyUp="QueryTextBox_KeyUp"
                         Visibility="Visible">
                         <TextBox.CommandBindings>
                             <CommandBinding Command="ApplicationCommands.Copy" Executed="OnCopy" />

Flow.Launcher/MainWindow.xaml.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.ComponentModel;
 using System.Threading.Tasks;
 using System.Windows;
@@ -20,6 +20,8 @@
 using System.Windows.Media;
 using Flow.Launcher.Infrastructure.Hotkey;
 using Flow.Launcher.Plugin.SharedCommands;
+using System.Windows.Data;
+using System.Diagnostics;
 
 namespace Flow.Launcher
 {
@@ -555,5 +557,14 @@ public void InitializeColorScheme()
                 ModernWpf.ThemeManager.Current.ApplicationTheme = ModernWpf.ApplicationTheme.Dark;
             }
         }
+
+        private void QueryTextBox_KeyUp(object sender, KeyEventArgs e)
+        {
+            if(_viewModel.QueryText != QueryTextBox.Text)
+            {
+                BindingExpression be = QueryTextBox.GetBindingExpression(System.Windows.Controls.TextBox.TextProperty);
+                be.UpdateSource();
+            }
+        }
     }
-}
+}