Fix/on keyboard input behavior (#539)

* Fix input key mask enabled from set global properties

* Only set model param if model exists

* Remove redunant OnInputNotificaiton after showing keyboard

* Revert "Remove redunant OnInputNotificaiton after showing keyboard"

This reverts commit 08fc71b.

* Prevent redundant notification on activate

* Line break

app/model/sdl/Abstract/Model.js

@@ -1078,6 +1078,15 @@ SDL.SDLModel = Em.Object.extend({
             });
           }
 
+          if (name === "maskInputCharacters" && 
+            properties[name] === "USER_CHOICE_INPUT_KEY_MASK" && 
+            default_properties[name] !== "USER_CHOICE_INPUT_KEY_MASK") {
+            SDL.KeyboardController.set('maskCharacters', true);
+            if (SDL.SDLController.model) {
+              SDL.SDLController.model.set('maskInputCharactersUserChoice', true);
+            }
+          }
+
           model.set('globalProperties.keyboardProperties.' + name, properties[name]);
         } else {
           model.set('globalProperties.keyboardProperties.' + name, default_properties[name]);

app/view/sdl/shared/keyboard.js

@@ -51,9 +51,8 @@ SDL.Keyboard = SDL.SDLAbstractView.create(
      * @param {Object}
      */
     activate: function(element) {
-      if (SDL.SDLController.model &&
-          SDL.SDLController.model.globalProperties.keyboardProperties && 
-          SDL.SDLController.model.globalProperties.keyboardProperties.maskInputCharacters == 'USER_CHOICE_INPUT_KEY_MASK') {
+      if (SDL.SDLController.model?.globalProperties?.keyboardProperties?.maskInputCharacters == 'USER_CHOICE_INPUT_KEY_MASK' 
+          && !SDL.KeyboardController.maskCharacters) {
         SDL.KeyboardController.set('maskCharacters', true);
         SDL.KeyboardController.updateInputMasking();
       }