Merge pull request phaserjs#3279 from squaresun/master

Fix KeyboardManager keydown events keeps firing

Author: photonstorm

src/input/keyboard/KeyboardManager.js

@@ -362,13 +362,13 @@ var KeyboardManager = new Class({
             var event = queue[i];
             var code = event.keyCode;
 
-            //  Will emit a keyboard or keyup event
-            this.emit(event.type, event);
-
             if (event.type === 'keydown')
             {
-                if (KeyMap[code])
+                if (KeyMap[code] && (keys[code] === undefined || keys[code].isDown === false))
                 {
+                    //  Will emit a keyboard or keyup event
+                    this.emit(event.type, event);
+
                     this.emit('keydown_' + KeyMap[code], event);
                 }
 
@@ -379,6 +379,9 @@ var KeyboardManager = new Class({
             }
             else
             {
+                //  Will emit a keyboard or keyup event
+                this.emit(event.type, event);
+
                 this.emit('keyup_' + KeyMap[code], event);
 
                 if (keys[code])

src/input/keyboard/keys/ProcessKeyDown.js

@@ -34,10 +34,14 @@ var ProcessKeyDown = function (key, event)
     key.shiftKey = event.shiftKey;
     key.location = event.location;
 
-    key.isDown = true;
-    key.isUp = false;
-    key.timeDown = event.timeStamp;
-    key.duration = 0;
+    if (key.isDown === false)
+    {
+        key.isDown = true;
+        key.isUp = false;
+        key.timeDown = event.timeStamp;
+        key.duration = 0;
+    }
+
     key.repeats++;
 
     key._justDown = true;