Avoid cursor position change when maxLength is set

package.json

@@ -1,6 +1,6 @@
 {
   "name": "simple-keyboard",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "On-screen Javascript Virtual Keyboard",
   "main": "build/index.js",
   "scripts": {

src/demo/App.js

@@ -15,7 +15,8 @@ class App {
       onChange: input => this.onChange(input),
       onKeyPress: button => this.onKeyPress(button),
       newLineOnEnter: true,
-      physicalKeyboardHighlight: true
+      physicalKeyboardHighlight: true,
+      maxLength: 5
     });
   
     /**

src/lib/services/Utilities.js

@@ -195,9 +195,12 @@ class Utilities {
       output = [source.slice(0, position), string, source.slice(position)].join('');
 
       /**
-       * Update caret position
+       * Avoid caret position change when maxLength is set
        */
-      this.updateCaretPos(string.length);
+      if(!this.isMaxLengthReached()){
+        this.updateCaretPos(string.length);
+      }
+
     }
 
     return output;
@@ -262,8 +265,10 @@ class Utilities {
       }
 
       if(condition){
+        this.maxLengthReached = true;
         return true;
       } else {
+        this.maxLengthReached = false;
         return false;
       }
     }
@@ -276,13 +281,19 @@ class Utilities {
       }
 
       if(condition){
+        this.maxLengthReached = true;
         return true;
       } else {
+        this.maxLengthReached = false;
         return false;
       }
     }
   }
 
+  isMaxLengthReached = () => {
+    return Boolean(this.maxLengthReached);
+  }
+
   camelCase = (string) => {
     return string.toLowerCase().trim().split(/[.\-_\s]/g).reduce((string, word) => string + word[0].toUpperCase() + word.slice(1));
   };