From 9915fb625edc552c804224d2a425aec271455668 Mon Sep 17 00:00:00 2001
From: Joel Bodenmann <joel@seriouslyembedded.com>
Date: Sun, 16 Aug 2015 01:36:33 +0200
Subject: [PATCH] Adding keyboard event handler to button widget

---
 src/gwin/gwin_button.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/gwin/gwin_button.c b/src/gwin/gwin_button.c
index 8a178b72..854f540b 100644
--- a/src/gwin/gwin_button.c
+++ b/src/gwin/gwin_button.c
@@ -50,6 +50,24 @@
 	}
 #endif
 
+#if GINPUT_NEED_KEYBOARD
+	static void _keyboardEvent(GWidgetObject* gw, GEventKeyboard* pke)
+	{
+		// ENTER and SPACE keys to press the button
+		if (pke->c[0] == GKEY_ENTER || pke->c[0] == GKEY_SPACE) {
+
+			// Press or release event?
+			if (pke->keystate & GKEYSTATE_KEYUP) {
+				gw->g.flags &= ~GBUTTON_FLG_PRESSED;
+			} else {
+				gw->g.flags |= GBUTTON_FLG_PRESSED;
+			}
+		}
+
+		_gwinUpdate((GHandle)gw);
+	}
+#endif
+
 #if GINPUT_NEED_TOGGLE
 	// A toggle off has occurred
 	static void ButtonToggleOff(GWidgetObject *gw, uint16_t role) {
@@ -97,7 +115,7 @@ static const gwidgetVMT buttonVMT = {
 	#endif
 	#if GINPUT_NEED_KEYBOARD
 		{
-			0						// Process keyboard events
+			_keyboardEvent			// Process keyboard events
 		},
 	#endif
 	#if GINPUT_NEED_TOGGLE