Implement temporary result list height increase when preview is on

Author: Yusyuriv

Flow.Launcher/ViewModel/MainViewModel.cs

@@ -143,15 +143,21 @@ public MainViewModel(Settings settings)
 
             ContextMenu = new ResultsViewModel(Settings)
             {
-                LeftClickResultCommand = OpenResultCommand, RightClickResultCommand = LoadContextMenuCommand
+                LeftClickResultCommand = OpenResultCommand,
+                RightClickResultCommand = LoadContextMenuCommand,
+                IsPreviewOn = Settings.AlwaysPreview
             };
             Results = new ResultsViewModel(Settings)
             {
-                LeftClickResultCommand = OpenResultCommand, RightClickResultCommand = LoadContextMenuCommand
+                LeftClickResultCommand = OpenResultCommand,
+                RightClickResultCommand = LoadContextMenuCommand,
+                IsPreviewOn = Settings.AlwaysPreview
             };
             History = new ResultsViewModel(Settings)
             {
-                LeftClickResultCommand = OpenResultCommand, RightClickResultCommand = LoadContextMenuCommand
+                LeftClickResultCommand = OpenResultCommand,
+                RightClickResultCommand = LoadContextMenuCommand,
+                IsPreviewOn = Settings.AlwaysPreview
             };
             _selectedResults = Results;
 
@@ -586,6 +592,10 @@ public void TogglePreview()
             {
                 HidePreview();
             }
+
+            ContextMenu.IsPreviewOn = PreviewVisible;
+            History.IsPreviewOn = PreviewVisible;
+            Results.IsPreviewOn = PreviewVisible;
         }
 
         private void ShowPreview()

Flow.Launcher/ViewModel/ResultsViewModel.cs

@@ -1,4 +1,5 @@
-using Flow.Launcher.Infrastructure.UserSettings;
+using System;
+using Flow.Launcher.Infrastructure.UserSettings;
 using Flow.Launcher.Plugin;
 using System.Collections.Generic;
 using System.Collections.Specialized;
@@ -49,7 +50,25 @@ public ResultsViewModel(Settings settings) : this()
 
         #region Properties
 
-        public double MaxHeight => MaxResults * _settings.ItemHeightSize;
+        public bool IsPreviewOn { get; set; }
+
+        public double MaxHeight
+        {
+            get
+            {
+                var newResultsCount = MaxResults;
+                if (IsPreviewOn)
+                {
+                    newResultsCount = (int)Math.Ceiling(380 / _settings.ItemHeightSize);
+                    if (newResultsCount < MaxResults)
+                    {
+                        newResultsCount = MaxResults;
+                    }
+                }
+                return newResultsCount * _settings.ItemHeightSize;
+            }
+        }
+
         public double ItemHeightSize
         {
             get => _settings.ItemHeightSize;