Add key handling to order generators.

OpenRA.Game/Orders/IOrderGenerator.cs

@@ -22,5 +22,6 @@ namespace OpenRA
 		IEnumerable<IRenderable> RenderAboveShroud(WorldRenderer wr, World world);
 		string GetCursor(World world, CPos cell, int2 worldPixel, MouseInput mi);
 		void Deactivate();
+		bool HandleKeyPress(KeyInput e);
 	}
 }

OpenRA.Game/Orders/UnitOrderGenerator.cs

@@ -86,6 +86,8 @@ namespace OpenRA.Orders
 
 		public void Deactivate() { }
 
+		bool IOrderGenerator.HandleKeyPress(KeyInput e) { return false; }
+
 		// Used for classic mouse orders, determines whether or not action at xy is move or select
 		public virtual bool InputOverridesSelection(WorldRenderer wr, World world, int2 xy, MouseInput mi)
 		{

OpenRA.Mods.Common/Orders/OrderGenerator.cs

@@ -30,6 +30,7 @@ namespace OpenRA.Mods.Common.Orders
 		IEnumerable<IRenderable> IOrderGenerator.RenderAboveShroud(WorldRenderer wr, World world) { return RenderAboveShroud(wr, world); }
 		string IOrderGenerator.GetCursor(World world, CPos cell, int2 worldPixel, MouseInput mi) { return GetCursor(world, cell, worldPixel, mi); }
 		void IOrderGenerator.Deactivate() { }
+		bool IOrderGenerator.HandleKeyPress(KeyInput e) { return false; }
 
 		protected abstract void Tick(World world);
 		protected abstract IEnumerable<IRenderable> Render(WorldRenderer wr, World world);

OpenRA.Mods.Common/Traits/SupportPowers/SelectDirectionalTarget.cs

@@ -144,6 +144,8 @@ namespace OpenRA.Mods.Common.Traits
 
 		string IOrderGenerator.GetCursor(World world, CPos cell, int2 worldPixel, MouseInput mi) { return cursor; }
 
+		bool IOrderGenerator.HandleKeyPress(KeyInput e) { return false; }
+
 		void IOrderGenerator.Deactivate()
 		{
 			if (activated)

OpenRA.Mods.Common/Widgets/ViewportControllerWidget.cs

@@ -495,7 +495,7 @@ namespace OpenRA.Mods.Common.Widgets
 				}
 			}
 
-			return false;
+			return world.OrderGenerator.HandleKeyPress(e);
 		}
 
 		ScrollDirection CheckForDirections()