From b5cb6933177c0202e52f273cb03aec9f4bea1b1c Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Thu, 19 Jan 2017 21:15:06 -0500
Subject: [PATCH] Only allow one pending keyboard event for any given key

---
 src/gui/Window.cc | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/gui/Window.cc b/src/gui/Window.cc
index b4f010d..52235bd 100644
--- a/src/gui/Window.cc
+++ b/src/gui/Window.cc
@@ -14,6 +14,7 @@ struct
     SDL_TimerID timer_id;
     SDL_Keycode keysym;
     bool pressed;
+    bool event_pending;
 } Key_Statuses[SDL_NUM_SCANCODES];
 
 /**
@@ -175,14 +176,18 @@ Uint32 Key_Repeat(Uint32 interval, void * param)
 {
     if (Key_Statuses[(uintptr_t)param].pressed)
     {
-        SDL_Event event;
+        if (!Key_Statuses[(uintptr_t)param].event_pending)
+        {
+            SDL_Event event;
 
-        event.user.code = 0;
-        event.user.data1 = (void *)(uintptr_t)Key_Statuses[(uintptr_t)param].keysym;
-        event.user.data2 = nullptr;
-        event.type = SDL_USEREVENT;
+            event.user.code = 0;
+            event.user.data1 = (void *)(uintptr_t)Key_Statuses[(uintptr_t)param].keysym;
+            event.user.data2 = param;
+            event.type = SDL_USEREVENT;
 
-        SDL_PushEvent(&event);
+            SDL_PushEvent(&event);
+            Key_Statuses[(uintptr_t)param].event_pending = true;
+        }
 
         return 25u;
     }
@@ -238,6 +243,7 @@ void Window::handle_event(SDL_Event & event)
         break;
 
     case SDL_USEREVENT:
+        Key_Statuses[(uintptr_t)event.user.data2].event_pending = false;
         handle_keysym((uint32_t)(uintptr_t)event.user.data1);
         break;