Fix main window stealing focus after dropping queue videos

CodeLegacy/Extensions/ExtensionMethods.cs

@@ -285,29 +285,48 @@ namespace Flowframes
             return filePath.IsConcatFile() ? $"{rateStr}-safe 0 -f concat " : "";
         }
 
-        public static string Get(this Dictionary<string, string> dict, string key, bool returnKeyInsteadOfEmptyString = false, bool ignoreCase = false)
+        public static string Get<TKey>(this Dictionary<TKey, string> dict, string key, bool returnKeyInsteadOfEmptyString = false, bool ignoreCase = false)
         {
             if (key == null)
                 key = "";
 
+            // Safely handle a null dictionary
             for (int i = 0; i < (dict == null ? 0 : dict.Count); i++)
             {
+                var elementKey = dict.ElementAt(i).Key;
+                var elementValue = dict.ElementAt(i).Value;
+
+                // Convert the dictionary key to string (handling null)
+                string dictKeyString = (elementKey == null ? "" : elementKey.ToString());
+
                 if (ignoreCase)
                 {
-                    if (key.Lower() == dict.ElementAt(i).Key.Lower())
+                    if (key.Lower() == dictKeyString.Lower())
-                        return dict.ElementAt(i).Value;
+                        return elementValue;
                 }
                 else
                 {
-                    if (key == dict.ElementAt(i).Key)
+                    if (key == dictKeyString)
-                        return dict.ElementAt(i).Value;
+                        return elementValue;
                 }
             }
 
-            if (returnKeyInsteadOfEmptyString)
+            return returnKeyInsteadOfEmptyString ? key : "";
-                return key;
+        }
-            else
+
-                return "";
+        /// <summary> Get a value from a dictionary, returns <paramref name="fallback"/> if not found. For strings, the default fallback is an empty string instead of null. </summary>
+        public static TValue Get<TKey, TValue>(this IDictionary<TKey, TValue> dictionary, TKey key, TValue fallback = default)
+        {
+            // For string values, use empty string instead of null as default value
+            if (typeof(TValue) == typeof(string) && fallback != null)
+            {
+                fallback = (TValue)(object)string.Empty;
+            }
+
+            if (dictionary == null)
+                return fallback;
+
+            return dictionary.TryGetValue(key, out var value) ? value : fallback;
         }
 
         public static void FillFromEnum<TEnum>(this ComboBox comboBox, Dictionary<string, string> stringMap = null, int defaultIndex = -1, List<TEnum> exclusionList = null, bool useKeyNames = false) where TEnum : Enum

CodeLegacy/Forms/BatchForm.cs

@@ -7,6 +7,7 @@ using System.Linq;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 using Flowframes.Data;
+using static Flowframes.Ui.ControlExtensions;
 
 namespace Flowframes.Forms
 {
@@ -25,7 +26,7 @@ namespace Flowframes.Forms
             RefreshGui();
         }
 
-        public void RefreshGui ()
+        public void RefreshGui()
         {
             taskList.Items.Clear();
 
@@ -34,22 +35,22 @@ namespace Flowframes.Forms
                 InterpSettings entry = Program.batchQueue.ElementAt(i);
                 string outFormat = Strings.OutputFormat.Get(entry.outSettings.Format.ToString());
                 string inPath = string.IsNullOrWhiteSpace(entry.inPath) ? "No Path" : Path.GetFileName(entry.inPath).Trunc(40);
-                string str = $"#{i+1}: {inPath} - {entry.inFps.Float} FPS => {entry.interpFactor}x {entry.ai.NameShort} ({entry.model.Name}) => {outFormat}";
+                string str = $"#{i + 1}: {inPath} - {entry.inFps.Float} FPS => {entry.interpFactor}x {entry.ai.NameShort} ({entry.model.Name}) => {outFormat}";
                 taskList.Items.Add(str);
             }
         }
 
-        private void RefreshIndex ()
+        private void RefreshIndex()
         {
-            for(int i = 0; i < taskList.Items.Count; i++)
+            for (int i = 0; i < taskList.Items.Count; i++)
             {
                 string[] split = taskList.Items[i].ToString().Split(':');
-                split[0] = $"#{i+1}";
+                split[0] = $"#{i + 1}";
                 taskList.Items[i] = string.Join(":", split);
             }
         }
 
-        public void SetWorking (bool working)
+        public void SetWorking(bool working)
         {
             runBtn.Enabled = !working;
             addToQueue.Enabled = !working;
@@ -119,7 +120,7 @@ namespace Flowframes.Forms
 
             Queue<InterpSettings> temp = new Queue<InterpSettings>();
 
-            for(int i = 0; i < Program.batchQueue.Count; i++)
+            for (int i = 0; i < Program.batchQueue.Count; i++)
             {
                 if (i != taskList.SelectedIndex)
                     temp.Enqueue(Program.batchQueue.ElementAt(i));
@@ -146,7 +147,15 @@ namespace Flowframes.Forms
             await LoadDroppedPaths(droppedPaths);
         }
 
-        public async Task LoadDroppedPaths (string[] droppedPaths, bool start = false)
+        public async Task LoadDroppedPaths(string[] droppedPaths, bool start = false)
+        {
+            if (droppedPaths == null || droppedPaths.Length < 1)
+                return;
+
+            var prevOpacity = Program.mainForm.Opacity;
+            Program.mainForm.Invoke(() => Program.mainForm.Opacity = 0f);
+
+            try
             {
                 foreach (string path in droppedPaths)
                 {
@@ -156,7 +165,7 @@ namespace Flowframes.Forms
                     current.inFpsDetected = await IoUtils.GetFpsFolderOrVideo(path);
                     current.inFps = current.inFpsDetected;
 
-                if(current.inFps.Float <= 0)
+                    if (current.inFps.Float <= 0)
                         current.inFps = InterpolateUtils.AskForFramerate(new DirectoryInfo(path).Name, false);
 
                     current.outFps = current.inFps * current.interpFactor;
@@ -164,6 +173,14 @@ namespace Flowframes.Forms
                     Program.batchQueue.Enqueue(current);
                     RefreshGui();
                 }
+            }
+            catch (Exception ex)
+            {
+                Logger.Log($"BatchForm: Error while loading dropped paths: {ex.Message}", true);
+            }
+
+            Program.mainForm.Invoke(() => Program.mainForm.Opacity = prevOpacity);
+            BringToFront();
 
             if (start)
                 runBtn_Click(null, null);

CodeLegacy/Main/Interpolate.cs

@@ -1,5 +1,4 @@
-using Flowframes;
+using Flowframes.Media;
-using Flowframes.Media;
 using Flowframes.Data;
 using Flowframes.IO;
 using Flowframes.Magick;
@@ -17,7 +16,6 @@ using System.Threading.Tasks;
 using System.Windows.Forms;
 using Padding = Flowframes.Data.Padding;
 using Utils = Flowframes.Main.InterpolateUtils;
-using System.Drawing.Imaging;
 
 namespace Flowframes
 {

CodeLegacy/MiscUtils/ParseUtils.cs

@@ -1,8 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Flowframes.MiscUtils
 {