Add: ESC key back(), Enter key start/restart to all features

src/game/menu/menu_app.js

@@ -32,12 +32,18 @@ var MenuApp = {
 		);
 
 
+		// keyboard shortcut
+		this.keyboardShortcut = new KeyboardShortcut();
+		this.keyboardShortcut.addCallback(
+			Phaser.KeyCode.ESC,	// keyCode
+			null,	// keyDownHandler
+			(function() { this.back(); }).bind(this),	// keyUpHandler
+			"menu_app"	// callerClassName
+		);
+
 		// top ui
 		var screenTopUI = new ScreenTopUI();
-		screenTopUI.makeBackButton( function() {
-			sessionStorageManager.clear();
-			location.href = '../../web/client/login.html';
-		});
+		screenTopUI.makeBackButton( (function() { this.back(); }).bind(this) );
 		screenTopUI.makeFullScreenButton();
 
 
@@ -62,6 +68,10 @@ var MenuApp = {
 	},
 
 
+	back: function() {
+		sessionStorageManager.clear();
+		location.href = '../../web/client/login.html';
+	},
 
 	loadAppData: function() {
 		var dbConnectManager = new DBConnectManager();

src/game/menu/menu_typing_practice.js

@@ -39,6 +39,7 @@ var MenuTypingPractice = {
 		// );
 
 
+		// keyboard shortcut
 		this.keyboardShortcut = new KeyboardShortcut();
 		this.keyboardShortcut.addCallback(
 			Phaser.KeyCode.ESC,	// keyCode
@@ -82,11 +83,11 @@ var MenuTypingPractice = {
 		this.makeActiveTypingPracticeAppButtons();
 	},
 
+
 	back: function() {
 		location.href = '../../web/client/menu_app.html';
 	},
 
-
 	makeActiveTypingPracticeAppButtons: function() {
 		var dbConnectManager = new DBConnectManager();
 		dbConnectManager.requestTypingPracticeAppList(

src/game/menu/menu_typing_test.js

@@ -39,11 +39,18 @@ var MenuTypingTest = {
 		// );
 
 
+		// keyboard shortcut
+		this.keyboardShortcut = new KeyboardShortcut();
+		this.keyboardShortcut.addCallback(
+			Phaser.KeyCode.ESC,	// keyCode
+			null,	// keyDownHandler
+			(function() { this.back(); }).bind(this),	// keyUpHandler
+			"menu_typing_test"	// callerClassName
+		);
+
 		// top ui
 		var screenTopUI = new ScreenTopUI();
-		screenTopUI.makeBackButton( function() {
-			location.href = '../../web/client/menu_app.html';
-		});
+		screenTopUI.makeBackButton( function() { (function() { this.back(); }).bind(this) });
 		screenTopUI.makeFullScreenButton();
 
 
@@ -77,6 +84,10 @@ var MenuTypingTest = {
 	},
 
 
+	back: function() {
+		location.href = '../../web/client/menu_app.html';
+	},
+
 	makeActiveTypingTestAppButtons: function() {
 		var dbConnectManager = new DBConnectManager();
 		dbConnectManager.requestTypingTestAppList(