Add TextBoxOption and wire it up

osu.Game/Overlays/Options/Online/InGameChatOptions.cs

@@ -11,6 +11,7 @@ namespace osu.Game.Overlays.Options.Online
         protected override string Header => "In-game Chat";
 
         private CheckBoxOption filterWords, filterForeign, logPMs, blockPMs;
+        private TextBoxOption chatIgnoreList, chatHighlightWords;
 
         public InGameChatOptions()
         {
@@ -21,9 +22,9 @@ namespace osu.Game.Overlays.Options.Online
                 logPMs = new CheckBoxOption { LabelText = "Log private messages" },
                 blockPMs = new CheckBoxOption { LabelText = "Block private messages from non-friends" },
                 new SpriteText { Text = "Chat ignore list (space-seperated list)" },
-                new TextBox { Height = 20, RelativeSizeAxes = Axes.X },
+                chatIgnoreList = new TextBoxOption { Height = 20, RelativeSizeAxes = Axes.X },
                 new SpriteText { Text = "Chat highlight words (space-seperated list)" },
-                new TextBox { Height = 20, RelativeSizeAxes = Axes.X },
+                chatHighlightWords = new TextBoxOption { Height = 20, RelativeSizeAxes = Axes.X },
             };
         }
 
@@ -37,6 +38,8 @@ namespace osu.Game.Overlays.Options.Online
                 filterForeign.Bindable = osuGame.Config.GetBindable<bool>(OsuConfig.ChatRemoveForeign);
                 logPMs.Bindable = osuGame.Config.GetBindable<bool>(OsuConfig.LogPrivateMessages);
                 blockPMs.Bindable = osuGame.Config.GetBindable<bool>(OsuConfig.BlockNonFriendPM);
+                chatIgnoreList.Bindable = osuGame.Config.GetBindable<string>(OsuConfig.IgnoreList);
+                chatHighlightWords.Bindable = osuGame.Config.GetBindable<string>(OsuConfig.HighlightWords);
             }
         }
     }

osu.Game/Overlays/Options/TextBoxOption.cs

@@ -0,0 +1,49 @@
+using System;
+using osu.Framework.Configuration;
+using osu.Framework.Graphics.UserInterface;
+
+namespace osu.Game.Overlays.Options
+{
+    public class TextBoxOption : TextBox
+    {
+        private Bindable<string> bindable;
+
+        public Bindable<string> Bindable
+        {
+            set
+            {
+                if (bindable != null)
+                    bindable.ValueChanged -= bindableValueChanged;
+                bindable = value;
+                if (bindable != null)
+                {
+                    base.Text = bindable.Value;
+                    bindable.ValueChanged += bindableValueChanged;
+                }
+            }
+        }
+        
+        protected override string internalText
+        {
+            get { return base.internalText; }
+            set
+            {
+                base.internalText = value;
+                if (bindable != null)
+                    bindable.Value = value;
+            }
+        }
+
+        private void bindableValueChanged(object sender, EventArgs e)
+        {
+            Text = bindable.Value;
+        }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            if (bindable != null)
+                bindable.ValueChanged -= bindableValueChanged;
+            base.Dispose(isDisposing);
+        }
+    }
+}

osu.Game/osu.Game.csproj

@@ -232,6 +232,7 @@
     <Compile Include="Overlays\Options\Online\PrivacyOptions.cs" />
     <Compile Include="Overlays\Options\Online\NotificationsOptions.cs" />
     <Compile Include="Overlays\Options\CheckBoxOption.cs" />
+    <Compile Include="Overlays\Options\TextBoxOption.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="$(SolutionDir)\osu-framework\osu.Framework\osu.Framework.csproj">