Flow.Launcher/Plugins/Flow.Launcher.Plugin.Sys/SysSettings.xaml.cs

using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;

namespace Flow.Launcher.Plugin.Sys
{
    public partial class SysSettings : UserControl
    {
        private readonly Settings _settings;

        public SysSettings(SettingsViewModel viewModel)
        {
            InitializeComponent();
            _settings = viewModel.Settings;
            DataContext = viewModel;
        }

        private void ListView_SizeChanged(object sender, SizeChangedEventArgs e)
        {
            ListView listView = sender as ListView;
            GridView gView = listView.View as GridView;

            var workingWidth =
                listView.ActualWidth - SystemParameters.VerticalScrollBarWidth; // take into account vertical scrollbar

            if (workingWidth <= 0) return;

            var col1 = 0.2;
            var col2 = 0.6;
            var col3 = 0.2;

            gView.Columns[0].Width = workingWidth * col1;
            gView.Columns[1].Width = workingWidth * col2;
            gView.Columns[2].Width = workingWidth * col3;
        }

        public void OnEditCommandKeywordClick(object sender, RoutedEventArgs e)
        {
            var commandKeyword = new CommandKeywordSettingWindow(_settings.SelectedCommand);
            commandKeyword.ShowDialog();
        }

        private void MouseDoubleClickItem(object sender, MouseButtonEventArgs e)
        {
            if (((FrameworkElement)e.OriginalSource).DataContext is Command && _settings.SelectedCommand != null)
            {
                var commandKeyword = new CommandKeywordSettingWindow(_settings.SelectedCommand);
                commandKeyword.ShowDialog();
            }
        }
    }
}