keyboard config object support #405

js/reveal.js

@@ -2098,13 +2098,46 @@ var Reveal = (function(){
 		// keyboard modifier key is present
 		if( hasFocus || (event.shiftKey && event.keyCode !== 32) || event.altKey || event.ctrlKey || event.metaKey ) return;
 
-		var triggered = true;
-
-		// while paused only allow "unpausing" keyboard events (b and .)
+		// While paused only allow "unpausing" keyboard events (b and .)
 		if( isPaused() && [66,190,191].indexOf( event.keyCode ) === -1 ) {
 			return false;
 		}
 
+		var triggered = false;
+
+		// 1. User defined key bindings
+		if( typeof config.keyboard === 'object' ) {
+
+			for( var key in config.keyboard ) {
+
+				// Check if this binding matches the pressed key
+				if( parseInt( key, 10 ) === event.keyCode ) {
+
+					var value = config.keyboard[ key ];
+
+					// Calback function
+					if( typeof value === 'function' ) {
+						value.apply( null, [ event ] );
+					}
+					// String shortcuts to reveal.js API
+					else if( typeof value === 'string' && typeof Reveal[ value ] === 'function' ) {
+						Reveal[ value ].call();
+					}
+
+					triggered = true;
+
+				}
+
+			}
+
+		}
+
+		// 2. System defined key bindings
+		if( triggered === false ) {
+
+			// Assume true and try to prove false
+			triggered = true;
+
 			switch( event.keyCode ) {
 				// p, page up
 				case 80: case 33: navigatePrev(); break;
@@ -2134,6 +2167,8 @@ var Reveal = (function(){
 					triggered = false;
 			}
 
+		}
+
 		// If the input resulted in a triggered action we should prevent
 		// the browsers default behavior
 		if( triggered ) {