From 386e67f30620724d4608ca7c6e8074e24c876f38 Mon Sep 17 00:00:00 2001
From: Kleinrotti <kleinrotti@gmail.com>
Date: Sun, 8 Mar 2020 21:55:44 +0100
Subject: [PATCH] added info label for empty Installed/available page

---
 VoukoderManager.Core/ProgramDetector.cs       |  4 ++--
 .../Pages/ComponentPage.xaml.cs               | 23 ++++++++++++++++++-
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/VoukoderManager.Core/ProgramDetector.cs b/VoukoderManager.Core/ProgramDetector.cs
index 6139775..6023a8b 100644
--- a/VoukoderManager.Core/ProgramDetector.cs
+++ b/VoukoderManager.Core/ProgramDetector.cs
@@ -115,13 +115,13 @@ public static IProgramEntry GetVoukoderComponent(ProgramType connectorType)
                 var ad = vComponents.Single(x => x.DisplayName.Any(char.IsDigit));
                 ConvertFromRegistryEntry(out entry, ad, ProgramType.VoukoderCore);
             }
-            catch (InvalidOperationException ex) { }
+            catch (Exception ex) { }
             try
             {
                 var re = vComponents.Single(x => x.DisplayName.Contains(connectorType.ToString()));
                 ConvertFromRegistryEntry(out entry, re, connectorType);
             }
-            catch (InvalidOperationException ex) { }
+            catch (Exception ex) { }
             if (entry != null && connectorType == entry.ComponentType)
                 return entry;
 
diff --git a/VoukoderManager.GUI/Pages/ComponentPage.xaml.cs b/VoukoderManager.GUI/Pages/ComponentPage.xaml.cs
index f9ad527..c06bdc6 100644
--- a/VoukoderManager.GUI/Pages/ComponentPage.xaml.cs
+++ b/VoukoderManager.GUI/Pages/ComponentPage.xaml.cs
@@ -19,6 +19,7 @@ public partial class ComponentPage : Page
     {
         private BackgroundWorker _worker;
         private List<IProgramEntry> _detectedPrograms;
+        private TextBlock _textBlockInfo;
 
         public ObservableCollection<VoukoderItemControl> VoukoderItemControls { get; set; }
 
@@ -31,15 +32,35 @@ public ComponentPage(bool isInstalledPage)
             DataContext = this;
             _isInstalledPage = isInstalledPage;
             VoukoderItemControls = new ObservableCollection<VoukoderItemControl>();
-            VoukoderItemControls = new ObservableCollection<VoukoderItemControl>();
+            VoukoderItemControls.CollectionChanged += VoukoderItemControls_CollectionChanged;
             _worker = new BackgroundWorker();
             this.Unloaded += ComponentPage_Unloaded;
             this.Loaded += ComponentPage_Loaded;
             VKProgramEntry.UninstallationFinished += ProgramEntry_UninstallationFinished;
             VKPackage.InstallationFinished += Package_InstallationFinished;
+            _textBlockInfo = new TextBlock();
+            if (!_isInstalledPage)
+                _textBlockInfo.Text = "There is currently no NLE available where Voukoder can be installed for.";
+            else
+                _textBlockInfo.Text = "There is currently no Voukoder component installed.";
+            _textBlockInfo.FontSize = 15;
+            stackpanelPrograms.Children.Add(_textBlockInfo);
             LoadProgramLists();
         }
 
+        private void VoukoderItemControls_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
+        {
+            var v = (ObservableCollection<VoukoderItemControl>)sender;
+            if (e.NewStartingIndex != -1)
+            {
+                _textBlockInfo.Visibility = System.Windows.Visibility.Collapsed;
+            }
+            else if (v.Count == 0)
+            {
+                _textBlockInfo.Visibility = System.Windows.Visibility.Visible;
+            }
+        }
+
         private void Package_InstallationFinished(object sender, OperationFinishedEventArgs e)
         {
             if (!e.Cancelled)