GUAC-1053: Unless overridden, default to "text" input mode if platform likely lacks a physical keyboard.

guacamole/src/main/webapp/app/settings/services/preferenceService.js

@@ -58,7 +58,7 @@ angular.module('settings').factory('preferenceService', ['$injector',
          *
          * @type String
          */
-        inputMethod : 'none'
+        inputMethod : null
 
     };
 
@@ -88,6 +88,17 @@ angular.module('settings').factory('preferenceService', ['$injector',
     }
     catch (ignore) {}
 
+    // Choose reasonable default input method based on best-guess at platform
+    if (service.preferences.inputMethod === null) {
+
+        // Use text input by default if platform likely lacks physical keyboard
+        if (/android|ipad|iphone/i.test(navigator.userAgent))
+            service.preferences.inputMethod = 'text';
+        else
+            service.preferences.inputMethod = 'none';
+
+    }
+
     // Persist settings when window is unloaded
     $window.addEventListener('unload', service.save);