Create PropertyInteger Model

src/style_manager/model/Property.js

@@ -67,4 +67,22 @@ module.exports = Backbone.Model.extend({
     return result;
   },
 
+  /**
+   * Get a complete value of the property.
+   * This probably will replace the getValue when all
+   * properties models will be splitted
+   * @param {string} val Custom value to replace the one on the model
+   * @return {string}
+   */
+  getFullValue(val) {
+    const fn = this.get('functionName');
+    let value = val || this.get('value');
+
+    if (fn) {
+      value = `${fn}(${value})`;
+    }
+
+    return value;
+  },
+
 });

src/style_manager/model/PropertyInteger.js

@@ -0,0 +1,18 @@
+const Property = require('./Component');
+
+module.exports = Property.extend({
+
+  defaults: Object.assign({}, Property.prototype.defaults, {
+    // Array of units, eg. ['px', '%']
+    units: [],
+
+    // Selected unit, eg. 'px'
+    unit: '',
+  }),
+
+  getFullValue() {
+    let value = this.get('value') + this.get('unit');
+    return Property.prototype.getFullValue.apply(this, [value]);
+  },
+
+});