From b030e873f37794081a927ef47fa485fb297bdcc3 Mon Sep 17 00:00:00 2001
From: Artur Arseniev <artur.catch@hotmail.it>
Date: Thu, 19 Oct 2017 14:42:55 +0200
Subject: [PATCH] Add `propagate` property to the Component

---
 src/dom_components/model/Component.js        | 17 ++++++++++++++++-
 test/specs/dom_components/model/Component.js | 12 ++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/dom_components/model/Component.js b/src/dom_components/model/Component.js
index e5dd0ab33..e2336dc7a 100644
--- a/src/dom_components/model/Component.js
+++ b/src/dom_components/model/Component.js
@@ -22,7 +22,7 @@ module.exports = Backbone.Model.extend(Styleable).extend({
     // True if the component is removable from the canvas
     removable: true,
 
-    // Indicates if it's possible to drag the component inside other
+    // Indicates if it's possible to drag the component inside others
     // Tip: Indicate an array of selectors where it could be dropped inside
     draggable: true,
 
@@ -84,6 +84,19 @@ module.exports = Backbone.Model.extend(Styleable).extend({
     // Traits
     traits: ['id', 'title'],
 
+    // Indicates an array of properties which will be inhereted by
+    // all NEW appended children
+    //
+    // If you create a model likes this
+    //  removable: false,
+    //  draggable: false,
+    //  propagate: ['removable', 'draggable']
+    // When you append some new component inside, the new added model
+    // will get the exact same properties indicated in `propagate` array
+    // (as the `propagate` property itself)
+    //
+    propagate: '',
+
     /**
       * Set an array of items to show up inside the toolbar (eg. move, clone, delete)
       * when the component is selected
@@ -132,6 +145,8 @@ module.exports = Backbone.Model.extend(Styleable).extend({
     }, this);
 
     this.set('status', '');
+    const propagate = this.get('propagate');
+    propagate && this.set('propagate', isArray(propagate) ? propagate : [propagate]);
     this.init();
   },
 
diff --git a/test/specs/dom_components/model/Component.js b/test/specs/dom_components/model/Component.js
index 3633da8d3..cf7b0585d 100644
--- a/test/specs/dom_components/model/Component.js
+++ b/test/specs/dom_components/model/Component.js
@@ -214,6 +214,18 @@ module.exports = {
           expect(result.length).toEqual(1);
           expect(result.models[0].get('tagName')).toEqual('span');
         });
+
+
+        it.only('Propagate properties to children', () => {
+          obj.append({propagate: 'removable'});
+          const result = obj.components();
+          const newObj = result.models[0];
+          expect(newObj.get('removable')).toEqual(true);
+          newObj.set('removable', false);
+          newObj.append({});
+          const child = newObj.components().models[0];
+          expect(child.get('removable')).toEqual(false);
+        });
     });
 
     describe('Image Component', () => {