Close screen keyboard when clicked outside of it

src/guiengine/event_handler.cpp

@@ -75,6 +75,12 @@ bool EventHandler::OnEvent (const SEvent &event)
 
     if(!Debug::onEvent(event))
         return false;
+        
+    if (ScreenKeyboard::isActive())
+    {
+        if (ScreenKeyboard::getCurrent()->onEvent(event))
+            return true; // EVENT_BLOCK
+    }
     
     // TO DEBUG HATS (when you don't actually have a hat)
     /*

src/guiengine/screen_keyboard.cpp

@@ -89,6 +89,7 @@ ScreenKeyboard::ScreenKeyboard(float percent_width, float percent_height,
     m_back_button     = NULL;
     m_repeat_time     = 0;
     m_back_button_pressed = false;
+    m_schedule_close = false;
     
     init();
 }   // ScreenKeyboard
@@ -307,6 +308,44 @@ void ScreenKeyboard::onUpdate(float dt)
     }
 }
 
+// ----------------------------------------------------------------------------
+/** A function that handles irrlicht events
+ *  \param event Irrlicht event
+ *  \return Block event if true
+ */
+bool ScreenKeyboard::onEvent(const SEvent &event)
+{
+    if (event.EventType == EET_MOUSE_INPUT_EVENT)
+    {
+        core::position2d<s32> point(event.MouseInput.X, event.MouseInput.Y);
+        bool is_point_inside = m_irrlicht_window->isPointInside(point);
+        
+        if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
+        {
+            if (!is_point_inside)
+            {
+                m_schedule_close = true;
+                return true;
+            }
+        }
+        else if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
+        {
+            if (!is_point_inside && m_schedule_close)
+            {
+                dismiss();
+                return true;
+            }
+            else
+            {
+                m_schedule_close = false;
+                return false;
+            }
+        }
+    }
+    
+    return false;
+}
+
 // ----------------------------------------------------------------------------
 /** A function that handles buttons events
  *  \param eventSource Button ID
@@ -428,4 +467,4 @@ bool ScreenKeyboard::shouldUseScreenKeyboard()
     #endif
     
     return use_screen_keyboard;
-}
+}

src/guiengine/screen_keyboard.hpp

@@ -74,6 +74,9 @@ namespace GUIEngine
         /** True if backspace button was pressed */
         bool m_back_button_pressed;
         
+        /** True if screen keyboard is going to be closed */
+        bool m_schedule_close;
+        
         /** The edit box that is assigned to the keyboard */
         CGUIEditBox* m_edit_box;
         
@@ -123,6 +126,8 @@ namespace GUIEngine
         /** Override to be notified of updates */
         virtual void onUpdate(float dt);
         
+        bool onEvent(const SEvent &event);
+        
         /** Get irrlicht window used by the keyboard widget */
         irr::gui::IGUIWindow* getIrrlichtElement() {return m_irrlicht_window;}