From af4efc022c30fb66d84f9651ac36aa628b796137 Mon Sep 17 00:00:00 2001
From: Eric Wasylishen <ewasylishen@gmail.com>
Date: Wed, 11 Jun 2014 23:18:12 -0600
Subject: [PATCH] sdl2: keyboard handling: use text input events for
 console/chat text entry

---
 Quake/in_sdl.c | 51 +++++++++++++++++++++++++++++++++++++-------------
 Quake/keys.c   |  9 ++++++---
 Quake/keys.h   |  2 +-
 3 files changed, 45 insertions(+), 17 deletions(-)

diff --git a/Quake/in_sdl.c b/Quake/in_sdl.c
index f538038e..60587ca9 100644
--- a/Quake/in_sdl.c
+++ b/Quake/in_sdl.c
@@ -370,6 +370,12 @@ void IN_UpdateForKeydest (void)
 }
 
 #if defined(USE_SDL2)
+
+static qboolean IN_SDL2_QuakeKeyHandledAsTextInput(int qkey)
+{
+	return (qkey >= 32 && qkey <= 126) && qkey != '`';
+}
+
 static inline int IN_SDL2_ScancodeToQuakeKey(SDL_Scancode scancode)
 {
 	switch (scancode)
@@ -517,7 +523,23 @@ void IN_SendKeyEvents (void)
 				else	S_BlockSound();
 			}
 			break;
-
+#endif
+#if defined(USE_SDL2)
+		case SDL_TEXTINPUT:
+			{
+				char *ch;
+				for (ch = event.text.text; *ch != '\0'; ch++)
+				{
+					int qkey = *ch;
+					
+					if (IN_SDL2_QuakeKeyHandledAsTextInput(qkey) && !gamekey)
+					{
+						Key_Event (qkey, SDL_PRESSED, false);
+						Key_Event (qkey, SDL_RELEASED, false);
+					}
+				}
+			}
+			break;
 #endif
  		case SDL_KEYDOWN:
 			if ((event.key.keysym.sym == SDLK_RETURN) &&
@@ -536,10 +558,14 @@ void IN_SendKeyEvents (void)
 		case SDL_KEYUP:
 #if defined(USE_SDL2)
 			sym = IN_SDL2_ScancodeToQuakeKey(event.key.keysym.scancode);
-			state = event.key.state;
-			modstate = SDL_GetModState();
-							
-			Key_Event (sym, state);
+			
+			if (gamekey || !IN_SDL2_QuakeKeyHandledAsTextInput(sym))
+			{
+				state = event.key.state;
+								
+				Key_Event (sym, state, true);
+			}
+			break;
 #else
 			sym = event.key.keysym.sym;
 			state = event.key.state;
@@ -766,10 +792,9 @@ void IN_SendKeyEvents (void)
 					sym = 0;
 				break;
 			}
-			Key_Event (sym, state);
-#endif
+			Key_Event (sym, state, true);
 			break;
-
+#endif
 		case SDL_MOUSEBUTTONDOWN:
 		case SDL_MOUSEBUTTONUP:
 			if (event.button.button < 1 ||
@@ -779,20 +804,20 @@ void IN_SendKeyEvents (void)
 							event.button.button);
 				break;
 			}
-			Key_Event(buttonremap[event.button.button - 1], event.button.state == SDL_PRESSED);
+			Key_Event(buttonremap[event.button.button - 1], event.button.state == SDL_PRESSED, true);
 			break;
 
 #if defined(USE_SDL2)
 		case SDL_MOUSEWHEEL:
 			if (event.wheel.y > 0)
 			{
-				Key_Event(K_MWHEELUP, false);
-				Key_Event(K_MWHEELUP, true);
+				Key_Event(K_MWHEELUP, false, true);
+				Key_Event(K_MWHEELUP, true, true);
 			}
 			else if (event.wheel.y < 0)
 			{
-				Key_Event(K_MWHEELDOWN, false);
-				Key_Event(K_MWHEELDOWN, true);
+				Key_Event(K_MWHEELDOWN, false, true);
+				Key_Event(K_MWHEELDOWN, true, true);
 			}
 			break;
 #endif
diff --git a/Quake/keys.c b/Quake/keys.c
index 7c580afe..883e8ce5 100644
--- a/Quake/keys.c
+++ b/Quake/keys.c
@@ -888,9 +888,12 @@ Key_Event
 
 Called by the system between frames for both key up and key down events
 Should NOT be called during an interrupt!
+
+If interpret_shift is true, and the shift key is currently down, handles
+mapping to the shifted version of a key. e.g. '5' -> '%'
 ===================
 */
-void Key_Event (int key, qboolean down)
+void Key_Event (int key, qboolean down, qboolean interpret_shift)
 {
 	char	*kb;
 	char	cmd[1024];
@@ -1001,7 +1004,7 @@ void Key_Event (int key, qboolean down)
 	if (!down)
 		return;		// other systems only care about key down events
 
-	if (shift_down)
+	if (shift_down && interpret_shift)
 		key = keyshift[key];
 
 	switch (key_dest)
@@ -1034,7 +1037,7 @@ void Key_ClearStates (void)
 	for (i = 0; i < 256; i++)
 	{
 		if (keydown[i])
-			Key_Event (i, false);
+			Key_Event (i, false, true);
 	}
 }
 
diff --git a/Quake/keys.h b/Quake/keys.h
index e3105732..3c7bbe62 100644
--- a/Quake/keys.h
+++ b/Quake/keys.h
@@ -164,7 +164,7 @@ void Key_Init (void);
 void Key_ClearStates (void);
 void Key_UpdateForDest (void);
 
-void Key_Event (int key, qboolean down);
+void Key_Event (int key, qboolean down, qboolean interpret_shift);
 
 void Key_SetBinding (int keynum, const char *binding);
 const char *Key_KeynumToString (int keynum);