Add keyboard controls to notifications

Closes #153

Core/Handling/KeyboardHandlerNotification.cs

@@ -0,0 +1,38 @@
+using CefSharp;
+using System.Windows.Forms;
+using TweetDuck.Core.Controls;
+using TweetDuck.Core.Notification;
+
+namespace TweetDuck.Core.Handling {
+    sealed class KeyboardHandlerNotification : IKeyboardHandler{
+        private readonly FormNotificationBase notification;
+
+        public KeyboardHandlerNotification(FormNotificationBase notification){
+            this.notification = notification;
+        }
+
+        bool IKeyboardHandler.OnPreKeyEvent(IWebBrowser browserControl, IBrowser browser, KeyType type, int windowsKeyCode, int nativeKeyCode, CefEventFlags modifiers, bool isSystemKey, ref bool isKeyboardShortcut){
+            if (type == KeyType.RawKeyDown){
+                switch((Keys)windowsKeyCode){
+                    case Keys.Enter:
+                        notification.InvokeAsyncSafe(notification.FinishCurrentNotification);
+                        return true;
+
+                    case Keys.Escape:
+                        notification.InvokeAsyncSafe(() => notification.HideNotification(true));
+                        return true;
+
+                    case Keys.Space:
+                        notification.InvokeAsyncSafe(() => notification.FreezeTimer = !notification.FreezeTimer);
+                        return true;
+                }
+            }
+
+            return false;
+        }
+
+        bool IKeyboardHandler.OnKeyEvent(IWebBrowser browserControl, IBrowser browser, KeyType type, int windowsKeyCode, int nativeKeyCode, CefEventFlags modifiers, bool isSystemKey){
+            return false;
+        }
+    }
+}

Core/Notification/FormNotificationMain.cs

@@ -4,6 +4,7 @@
 using System.Windows.Forms;
 using TweetDuck.Core.Bridge;
 using TweetDuck.Core.Controls;
+using TweetDuck.Core.Handling;
 using TweetDuck.Core.Utils;
 using TweetDuck.Data;
 using TweetDuck.Plugins;
@@ -82,7 +83,9 @@ public FormNotificationMain(FormBrowser owner, PluginManager pluginManager, bool
             InitializeComponent();
 
             this.plugins = pluginManager;
-
+            
+            browser.KeyboardHandler = new KeyboardHandlerNotification(this);
+            
             browser.RegisterAsyncJsObject("$TD", new TweetDeckBridge(owner, this));
             browser.RegisterAsyncJsObject("$TDP", plugins.Bridge);
 

TweetDuck.csproj

@@ -97,6 +97,7 @@
     <Compile Include="Core\FormBrowser.Designer.cs">
       <DependentUpon>FormBrowser.cs</DependentUpon>
     </Compile>
+    <Compile Include="Core\Handling\KeyboardHandlerNotification.cs" />
     <Compile Include="Core\Handling\RequestHandlerBrowser.cs" />
     <Compile Include="Core\Handling\RequestHandler.cs" />
     <Compile Include="Core\Handling\ResourceHandlerNotification.cs" />